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Sunday, January 30th, 2022

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    3:03a
    [Botany • 2021] Didymocarpus laoticus, D. trilobus, Paraboea planiflora, et al. • Six New Species and Eight New Records of Gesneriaceae from Laos


    Didymocarpus trilobus Souvann. & Phonep.,   D. laoticus Souvann. & Lanors., 
     D. angustiflorus Souvann. & Lanors.,   D. bolavenensis Souvann., Soulad. & Phonep., 

    in Souvannakhoummane, Lanorsavanh, Tagane, ... et Lamxay, 2021. 
    Gardens’ Bulletin Singapore. 73(2)

    ABSTRACT
    Six new species of Gesneriaceae from Laos, namely Didymocarpus angustiflorus Souvann. & Lanors., D. bolavenensis Souvann., Soulad. & Phonep., D. laoticus Souvann. & Lanors., D. trilobus Souvann. & Phonep., Hemiboea olivifolia Souvann. & Tagane and Paraboea planiflora Souvann. & Lanors., are described and illustrated. Additionally, Aeschynanthus bracteatus Wall. ex A.DC., A. micranthus C.B.Clarke, Epithema ceylanicum Gardner, Lysionotus serratus D.Don, Microchirita luteola C.Puglisi, Paraboea swinhoei (Hance) B.L.Burtt, Petrocosmea kerrii Craib and Pseudochirita guangxiensis (S.Z.Huang) W.T.Wang, are newly recorded for the flora of Laos.

    Keywords. Didymocarpus, flora of Laos, Hemiboea, new distribution, new taxon, Paraboea, taxonomy



    Didymocarpus angustiflorus Souvann. & Lanors., sp. nov. 

    Morphologically similar to Didymocarpus payapensis Nangngam & J.F.Maxwell from Thailand, in habit, elliptic lamina, and glabrous and salverform corolla, but differs in having lamina abaxially puberulent (vs glabrous), calyx 5-parted to base, green, with glands outside (vs calyx lobes divided c. 2/3 to the base, maroon, sparsely covered with multicellular glandular hairs and scattered pigment glands), corolla 1.5– 2.2 cm long, dark blue with white patch in mouth (vs c. 2.5 cm long, dark purple), filaments sparsely multicellular glandular puberulent (vs glabrous), and style glabrous (vs sparsely covered with multicellular glandular hairs).

    Distribution. Central Laos (known only from the type locality in Phou Khao Khouay National Protected Area). 

    Habitat and phenology. Didymocarpus angustiflorus grows on moist rocks in evergreen forest, along with Globba sp., Monolophus sp. (Zingiberaceae), Sonerila sp. (Melastomataceae), Begonia hymenophylla Gagnep. (Begoniaceae) and some ferns. Flowering from July to August and fruiting from September to October (observed from cultivation). 

    Etymology. The specific epithet refers to its narrow cylindrical corolla tube
    Vernacular name. ດອກແກຫຼອດມ່ວງ (Dok Kea Loth Mouang).


    Didymocarpus bolavenensis Souvann., Soulad. & Phonep., sp. nov. 

    Morphologically similar to Didymocarpus inflatus J.F.Maxwell & Nangngam from Thailand, in habit, ovate lamina, campanulate glabrous calyx, and cylindric ovary, but differs in the salverform to narrowly funnelform corolla which is 3–3.5 cm long, lobes purple with white lines in the mouth (vs funnelform, 4 cm long, lobes violet with dark violet-reddish lines in mouth), and broadly reniform corolla lobes (vs lobes suborbicular).

    Distribution. Southern Laos (so far known only from the Bolaven Plateau). 

    Habitat and phenology. Didymocarpus bolavenensis grows on a wet and shaded table rock located near a stream in lower montane evergreen forest. The surface of the rock is covered with humus formed from mosses and ferns. Flowering from August to September and fruiting from September to November. 

    Etymology. The specific epithet of this taxon refers to the type locality. 
    Vernacular name. ດອກແກມ່ວງບໍລະເວນ (Dok Kea Mouang Bolaven). 


        

    Didymocarpus laoticus Souvann. & Lanors., sp. nov. 

    The new species is morphologically similar to Didymocarpus sinoindicus N.S.Prasanna, Lei Cai & V.Gowda in habit, ovate lamina and ovary shape, but differs in having calyx 10–13 mm long, white, glabrous (vs 4–6 mm long, cream-white to greenish yellow, covered with peltate pigment glands outside), corolla 30–32 mm long, white with dark blue in the mouth (vs corolla 8.5–12 cm long, cream-white to greenish yellow with purple striations in the mouth), and ovary glabrous (vs ovary covered with peltate pigment glands). 

    Distribution. Central Laos (Phou Khao Khouay National Protected Area in Bolikhamxai Province). 

    Habitat and phenology. It was found growing on wet rocks near a small stream in mixed deciduous forest where Dendrocalamus membranaceus Munro (Poaceae) is dominant. Flowering from late July to August. 

    Etymology. The specific epithet refers to where the type material was collected. 
    Vernacular name. ດອກແກຂາວໃຈຟ້າ (Dok Kea Khao Jai Fa).


    Didymocarpus trilobus Souvann. & Phonep., sp. nov. 

    The new species is morphologically similar to Didymocarpus albiflorus Souvann. & Phonep., in having corolla funnelform, but differs in often lacking larger basal leaves (vs with larger basal leaves in D. albiflorus), calyx campanulate and 3-lobed (vs funnelform and 5-lobed), corolla dark purple (vs white), and ovary glabrous (vs sparsely glandular puberulent).

    Distribution. Central Laos (so far known from two small populations in Phou Khao Khouay National Protected Area, in Vientiane and Bolikhamxai). 

    Habitat and phenology. It is common in seasonal deciduous forest mixed with bamboo at an altitude of 300 m and grows on wet rocks with mosses and Adiantum sp. (Adiantaceae). Flowering from July to August and fruiting from August to October. The above-ground part of the plants dries up completely in January (recorded from cultivated living collection). 

    Etymology. The species epithet of this taxon refers to the three lobes of the calyx due to the upper lobes fusing into a single lobe.
    Vernacular name. ດອກແກມ່ວງໃຫຍ່ (Dok Kea Mouang Yai).




    Hemiboea olivifolia Souvann. & Tagane, sp. nov. 

    Morphologically similar to Hemiboea cavaleriei H.Lév., but differs in having lamina succulent and dark waxy olive-green adaxially, and corolla white and glabrous outside (vs lamina herbaceous in H. cavaleriei var. cavaleriei, lamina papery to thinly papery in H. cavaleriei var. paucinervis W.T.Wang & Z.Y.Li and both varieties non-waxy olive-green on adaxial surface; corolla outside pale yellow and sparsely glandular puberulent).

    Distribution. Northern Laos (Pha Nam Yard Forest Reserve Area, Louangphabang Province). 

    Habitat and phenology. It grows on a limestone hill in deciduous forest, c. 300 m from the banks of the Mekong River, where the stable humidity, essential for the survival of this species, comes from the river. It occurs with Amorphophallus yunnanensis Engl. (Araceae), Impatiens parishii Hook.f. (Balsaminaceae), Dracaena sp. (Asparagaceae) and Asplenium sp. (Aspleniaceae). Flowering from October to November and fruiting in December. 

    Etymology. The specific epithet of this taxon refers to the olive-green upper leaf surface. 
    Vernacular name. ດອກລະຄັງເງິນ (La Khang Ngeurn).



    Paraboea planiflora Souvann. & Lanors., sp. nov. 

    Morphologically similar to Paraboea khaoyaica Kaitongsuk et al. in habit and in having an almost flat-faced corolla (Kaitongsuk et al., 2021), but differs in bracts broadly oblanceolate to oblong, calyx with a scattered glandular indumentum, and corolla minutely pubescent outside (vs bracts linear or lanceolate, calyx glabrous, and corolla glabrous in P. khaoyaica).

    Distribution. Central Laos (Phou Khao Khouay National Protected Area, in Bolikhamxai and Saysomboun Province). 

    Habitat and phenology. Paraboea planiflora grows on open to semi-shaded rocks in mixed deciduous forest with bamboo, and is often common near streams. Flowering from July to August and fruiting from August to September. 

    Etymology. The specific epithet of this taxon refers to the flat-faced corolla
    Vernacular name. ຊາລຶສີ (Sa Leu Si).
     

    Keooudone Souvannakhoummane, Soulivanh Lanorsavanh, Shuichiro Tagane, Phetlasy Souladeth, Phongphayboun Phonepaseuth, Wittaya Pongamornkul and Vichith Lamxay. 2021. Six New Species and Eight New Records of Gesneriaceae from Laos. Gardens’ Bulletin Singapore. 73(2); 427 - 456. 


        

    3:03a
    [Botany • 2018] Ridsdalea alba (Rubiaceae: Gardenieae) • A New Species from southern Thailand


    Ridsdalea alba K.Khamm., 

    in Khammongkol, Chamchumroon, Poopath, et al., 2018. 
    พุดหอมเศวต  ||  DOI: 10.11646/phytotaxa.365.1.5

    Abstract 
    Ridsdalea alba, a new species of Gardenieae from southern Thailand, is described and illustrated. It differs from R. sootepensis in having narrowly elliptic-oblong to obovate leaf blades that are glossy dark green above, thickly leathery in texture, with rounded to acute leaf apices, and revolute leaf margins. Moreover, the corolla tube is without purple speckles inside.

    Keywords: Eudicots, Ridsdalea, Rothmannia, Gardenieae, Rubiaceae, new species, Thailand

     
    Ridsdalea alba K. Khammongkol.
    A. Habit and habitat. B. Foliage showing trifoliate leaf clusters. C. Abaxial leaf surfaces. D. and E. Inflorescences. F. Salverform corolla. G. Fruit. H. Cross-section of a fruit and seeds.

     Ridsdalea alba K. Khammongkol.
     A. Flowering branch. B. Node with stipule. C. Flower, with salverform corolla. D. Flower bud. E. Flower with corolla tube slit open. F. Inferior ovary. G. Dorsal, ventral and lateral views of anther. H. Numerous ovules in 2 rows. I. Bracts. J. Fruiting branch. K. Transverse section of a fruit. L. Fruit.
    Drawn by Ms. Benjaluk Chuencharoen
     (all based on K. Khammongkol et al. KK151).

    Ridsdalea alba K. Khammongkol sp. nov. 

    This species is superficially similar to Ridsdalea sootepensis but differs in that its leaf blades are narrowly elliptic-oblong to obovate, glossy dark green above, thickly leathery, rounded to acute leaf apices, and revolute leaf margins. The corolla tube is without purple speckles inside. In contrast, R. sootepensis has leaf blades that are lanceolate to oblong-lanceolate, matt green above, leathery, acute to acuminate leaf apices, and plane margins. The corolla tube of R. sootepensis is with purple speckles inside.

    Etymology:—In Latin, “alba” means white; the specific epithet refers to the white corolla.
     Common name:—Phut Hom Sawate - พุดหอมเศวต (Thai). 


    Kwanjai Khammongkol, Voradol Chamchumroon, Manop Poopath, Sarunya Vajrodaya and Sarawood Sungkaew. 2018. Ridsdalea alba (Rubiaceae), A New Species from southern Thailand. Phytotaxa. 365(1); 96–100. DOI: 10.11646/phytotaxa.365.1.5

    3:04a
    [Botany • 2020] Utricularia sainthomia (Lentibulariaceae) • A New Remarkable Carnivorous Species from the Lateritic Plateau of northern Kerala, India


    Utricularia sainthomia P.Biju, Josekutty, Janarth. & Augustine, 

    in Biju, Josekutty, Janarthanam & Jomy, 2020. 

    Abstract
    A new species of Lentibulariaceae, Utricularia sainthomia collected from the lateritic plateau of northern Kerala, India is described and illustrated. It is compared with similar species, U. malabarica Janarth. & A.N.Henry and U. lazulina P.Taylor based on vegetative, floral and seed morphology. A key to the violet flowered species in India are provided.

    Keywords: New species, Utricularia, Utricularia sect. Oligocista.


    Utricularia sainthomia P.Biju, Josekutty, Janarth. & Augustine:
     a. Habit; b. Habitat; c. Rhizoids; d. Stamens; e. Pistil; f. Trap different views
     (from Biju & Jomy 1008; photos by P. Biju).



    Utricularia sainthomia P.Biju, Josekutty, Janarth. & Augustine, sp. nov.

     This new species is morphologically similar to U. malabarica Janarth. & A.N.Henry and U. lazulina P.Taylor in its 3- nerved leaves, basifixed bracts, shorter peduncles, recurved fruiting pedicels (absent in U. lazulina), papillate calyx lobes and bigibbous corolla but differs in having large oblate traps (1.5–2.5 mm) with a lateral mouth, traps confined to the expanded portion of the leaves, 1.5–2.5 mm long nonglandular trap appendages, terete brownish green peduncles, papillate scales, bracts and bracteoles, broad obovate upper lip of corolla, deep violet lower lip of corolla, shallowly trilobed upper lobe of stigma, globular capsules, terminal hilum, elongated overlapping testa cells with raised anticlinal boundaries and periclinal walls transversely striated.

    Etymology: The species is named after the educational institution Saint Thomas College, Pala, Kerala, India, where one of the authors pursuing research work. 

    Distribution: Endemic to the lateritic plateau in Kerala, India.


    Biju P., Josekutty E.J., Janarthanam M.K. and A. Jomy. 2020. Utricularia sainthomia (Lentibulariaceae), A New Remarkable Carnivorous Species from the Lateritic Plateau of northern Kerala, India. Rheedea: Journal of Indian Association for Angiosperm Taxonomy. DOI: 10.22244/rheedea.2020.30.02.02 rheedea.in/journal/IEmyDef7

    3:06a
    [Botany • 2022] Ridsdalea philippinensis (Rubiaceae: Gardenieae) • A New Philippine Species from Karst Vegetation in Palawan


    Ridsdalea philippinensis R.Bustam. & Pelser.,   

    in Bustamante & Pelser, 2022.

    Abstract 
    Ridsdalea philippinensis (Rubiaceae), a new species from the karst forest in El Nido (Palawan, Philippines), is described and illustrated. It is unique among Malesian Ridsdalea species in having a corolla tube that is distinctly inflated at the apex, a character state also displayed by R. sootepensis and R. thailandica from Laos and Thailand. Amongst others, R. philippinensis, however, differs from both of these species in having smaller flowers and anthers that do not emerge from the corolla tube. An updated key for Philippine Ridsdalea is also presented.

    Keywords: El Nido-Taytay Managed Resource Protected Area; Gardenieae; Malesia; Philippines; Ridsdalea; Rubiaceae

    a– c, e. Ridsdalea philippinensis R.Bustam. & Pelser.
    a. Flower; b. longitudinal section of flower; c. branching of twig; e. flower showing inflated apex of corolla tube.
    — d, f. Ridsdalea merrillii (Elmer) J.T.Pereira. d. Flowering twig; f. flower showing the lack of an inflated apex of the corolla tube.
    — Photos by: a– c, e: W. Cabanillas & L.M. Camangeg; d, f: P.B. Pelser & J.F. Barcelona.


    Ridsdalea philippinensis R.Bustam. & Pelser.
    a. Flowering twig; b. leaf, showing appearance of the adaxial (Ad) and abaxial (Ab) surface; c. stipule, showing appearance of the adaxial (Ad) and abaxial (Ab) surface; d. fruit; e. cross section of flower; f. indumentum at the apical part of the basal section (i.e., non-inflated part) of the corolla tube; g. anther; h. cross section of fruit.
    — Drawing by J. Mansibang.

    Ridsdalea philippinensis R.Bustam. & Pelser, sp. nov. 

     A species that is unique among all currently described species of Ridsdalea in displaying a combination of flowers with a corolla tube that is distinctly inflated at its apex and anthers that do not emerge from it. 

    Distribution — Ridsdalea philippinensis is endemic to El Nido, Palawan (Philippines). 

    Habitat & Ecology — Tower karst formation. Altitude: c. 150 m. Flowering: June.

     
     Bustamante, R.A.A. and Pelser, P.B. 2022. A New Philippine Species of Ridsdalea (Rubiaceae, Ixoroideae) from Karst Vegetation in Palawan.  Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI: 10.3767/blumea.2022.67.01.04
     
      

    3:07a
    [Herpetology • 2021] Gephyromantis pedronoi • Target-enriched DNA Sequencing Clarifies the Identity of Name-bearing Types of the Gephyromantis plicifer complex (Anura: Mantellidae) and reveals A New Species of Mantellid Frog from Madagascar


    Gephyromantis (Duboimantis) pedronoi 
    Vences, Köhler, Andreone, Craul, Crottini, du Preez, Preick, Rancilhac, Rödel, Scherz, Streicher, Hofreiter & Glaw, 2021

     Spixiana. 44(2); 175-202. 

    Mantellid frogs of the Madagascar-endemic Gephyromantis plicifer complex consist of three nominal species (G. luteus, G. plicifer and G. sculpturatus) as well as several genetically divergent lineages (candidate species), but uncertainties surround the identity of the name-bearing types of all three established nomina. We applied laboratory techniques to isolate archival DNA from the three old, liquidpreserved, name-bearing type specimens and conducted target-enriched DNA sequencing of a fragment of the mitochondrial 16S rRNA gene as basis for the revision of their taxonomy. Along with 16S sequences of 161 fresh samples, sequences of a fragment of the nuclear-encoded Rag-1 gene for 97 of these samples, a multi-gene data set of selected samples, and a comprehensive analysis of available advertisement call recordings, the new data suggest a novel taxonomic hypothesis: (1) The name G. plicifer applies to a highland clade of populations from the southern Central East, previously referred to as Gephyromantis sp. Ca21, with G. sculpturatus as a junior synonym. (2) The name G. luteus applies to a widespread clade distributed along most of Madagascar’s eastern rainforest band, and more specifically, is assigned to a subclade occurring mostly in coastal regions of the northern Central East and North East. (3) Large-sized specimens from Ranomafana (southern Central East) and Andohahela (South East) previously considered to belong to G. plicifer in fact represent a hitherto undescribed species, which we here formally name as Gephyromantis pedronoi sp. nov. The three species are distinguished by very high genetic distances (over 8 % in the 16S gene), an absence of haplotype sharing in Rag-1, as well as morphological and bioacoustic characteristics. Moreover, several infraspecific clades with 16S divergences > 4 % may represent distinct species, especially within the widespread G. luteus, but cannot be unambiguously delimited by available data. We suggest dedicated sampling at contact zones and more extensive bioacoustic study of genotyped call vouchers to clarify their taxonomic status.


     Three adult males of Gephyromantis pedronoi sp. nov. (clade C) from Ranomafana in life, in dorsolateral and ventral views.
     a-d. photographed in 1996; e-f. photographed in 2003.
    The individuals cannot be reliably assigned to preserved voucher specimens, but a-d might correspond to ZFMK 62305-62306.

    Gephyromantis pedronoi sp. nov.

    Identity. This species has previously been assigned to Gephyromantis plicifer in various publications (e.g., Vences & Glaw 2001, Vences et al. 2006, Glaw & Vences 2007), based on the analysis of Vences & Glaw (2001) who relied on morphological similarities with the lectotype of Rana plicifera Boulenger, 1882 (distinct and large femoral glands of type 2), but also already remarked the smaller body size of the plicifer lectotype. It corresponds to the genetic clade C and is here recognised as distinct at the species level from G. plicifer (clade B).


    Diagnosis. A species of Gephyromantis assigned to the G. luteus complex in the subgenus Duboimantis on the basis of presence of intercalary elements between ultimate and penultimate phalanges of fingers and toes present (assessed by external examination), absence of nuptial pads, a single patch of well-delimited femoral glands of type 2 in males (no rudiments in females), paired blackish subgular vocal sacs in males, fairly smooth skin, moderately large body size, outer metatarsalia separated by webbing, presence of inner and outer dorsolateral ridges, and molecular phylogenetic affinities. Within the G. luteus complex, the species can be identified by a unique combination of the following characters: moderately large body size (adult males >43 mm and often up to 44-46 mm, vs. up to 43 mm but often <40 mm in G. luteus and G. plicifer), distinct and relatively large femoral glands in males (vs. small, often indistinct to unrecognisable externally in G. luteus), and emission of advertisement calls in irregular series at low call repetition rate of <100 calls per minute (vs. fast, regular series of at least 140 calls per minute in G. luteus and G. plicifer), and distinct downward frequency modulation (vs. upward frequency modulation in G. luteus and G. plicifer). 


    Etymology. The name is a patronym dedicated to Miguel Pedrono in recognition of his substantial contributions to our understanding of the biology of Madagascar’s tortoises, in particular the Angonoka, Astrochelys yniphora, and his immense efforts in tortoise conservation (e.g. Pedrono 2008, Pedrono & Clausen 2018). 

    Distribution. The species is reliably known from DNA barcoded specimens from Ranomafana National Park at elevations of about 950 m a. s.l., and Andohahela National Park, from a site between Isaka and Eminiminy at around 600 m a. s.l. Additional specimens probably belonging to this species from the Anosy Chain (Ambana-Soavala, Camp IV, Camp V) reported above under additional material would originate from a rather wide elevational range, based on the elevational information of campsites reported by Rakotoarison et al. (2017b), i. e., from almost sea level (Ambana) over 550 m (Camp 4) to 1050 m a. s.l. (Camp V).


    Miguel Vences, Jörn Köhler, Franco Andreone, Ann-Kristin Craul, Angelica Crottini, Louis du Preez, Michaela Preick, Lois Rancilhac, Mark-Oliver Rödel, Mark D. Scherz, Jeffrey W. Streicher, Michael Hofreiter and Frank Glaw. 2021. Target-enriched DNA Sequencing Clarifies the Identity of Name-bearing Types of the Gephyromantis plicifer complex and reveals A New Species of Mantellid Frog from Madagascar (Amphibia, Anura). Spixiana. 44(2); 175-202.
     https://pfeil-verlag.de/wp-content/uploads/2021/12/SPX_44-2_11_VE.pdf



    3:07a
    [Herpetology • 2016] Dixonius minhlei • First Molecular Verification of Dixonius vietnamensis Das, 2004 (Squamata: Gekkonidae) with the Description of A New Species from Vinh Cuu Nature Reserve, Dong Nai Province, Vietnam

    Dixonius minhlei 
     Ziegler,  Botov, Nguyen, Bauer, Brennan, Ngo & Nguyen, 2016


    Abstract
    Based on near-topotypic specimens of Dixonius vietnamensis from Khanh Hoa Province in southern Vietnam genetic analyses showed that the recently described D. taoi is sister to D. vietnamensis and several separate forms exist which previously have been misidentified as D. vietnamensis and D. siamensis. The Dixonius population from Vinh Cuu Nature Reserve, Dong Nai Province, Vietnam, represents an undescribed species. Dixonius minhlei sp. nov. can be distinguished from its congeners based on the following diagnostic characters: small size (up to 47.5 mm SVL); 7–9 supralabials; 14–15 rows of keeled tubercles on dorsum; 20–23 ventral scale rows; 7 or 8 precloacal pores in males; a canthal stripe running from rostrum through the eye and terminating at back of head; lateral second pair of postmentals maximum one quarter the size of first pair; dorsum olive gray with more or less discernible brownish olive blotches. This is the sixth species of Dixonius known to occur in Vietnam.

    Keywords: Reptilia, Dixonius vietnamensis, Dixonius minhlei sp. nov., Vietnam, morphology, molecular phylogeny, taxonomy

    Paratypes of Dixonius minhlei sp. nov. from Vinh Cuu, Dong Nai Province, in life:
     ZFMK 97745 (top), and VNMN R.2016.1 (bottom).
     Photos: T. T. Nguyen. 

     Dixonius minhlei sp. nov. 

    Diagnosis. A small gecko with up to 47.5 mm SVL; 7–9 supralabials; 14–15 rows of keeled tubercles on dorsum; 20–23 ventral scale rows; 7 or 8 precloacal pores in males; a canthal stripe running from rostrum through the eye and terminating at back of head; lateral second pair of postmentals maximum one quarter the size of first pair; dorsum olive gray with more or less discernible brownish olive blotches.

    Etymology. The new species is named after our friend and colleague Dr. Minh D. Le from the Faculty of Environmental Sciences, Hanoi University of Science, Vietnam National University, Hanoi, for his continuous and significant contributions towards a better understanding of the diversity and phylogenetic relationships of species from Vietnam and surrounding countries.

    Distribution. Dixonius minhlei sp. nov. currently is only known from the type locality (Fig. 7).

    Natural history. The type series of Dixonius minhlei sp. nov. was collected at night, between 19:00 and 23:00, on the ground of the evergreen forest (Fig. 8). Further reptile species observed at the type locality were Acanthosaura lepidogaster, Calotes emma, and Cyrtodactylus cattienensis.


    Thomas Ziegler, Andreas Botov, Tao T. Nguyen, Aaron M. Bauer, Ian G. Brennan, Hanh T. Ngo & Truong Q. Nguyen. 2016. First Molecular Verification of Dixonius vietnamensis Das, 2004 (Squamata: Gekkonidae) with the Description of A New Species from Vinh Cuu Nature Reserve, Dong Nai Province, Vietnam. Zootaxa. 4136(3); 553–566. DOI: 10.11646/zootaxa.4136.3.7


    2:05p
    [Entomology • 2022] Phlogis kibalensis • A New Species of the Unusual Leafhopper Genus Phlogis Linnavuori (Hemiptera: Cicadellidae: Signoretiinae) from Uganda

    Phlogis kibalensis
    Helden, 2022

     
    Abstract
    Phlogis kibalensis sp. nov. from Kibale National Park, Uganda is described and illustrated. It differs from the other species of the genus known from Africa (P. mirabilis) in the shape of the aedeagus, in particular the shape of the sub-apical lateral processes, as well as in style shape and some aspects of colouration.

    Keywords: Hemiptera, Auchenorrhyncha, new species, East Africa, Phlogisini.

      
     
    Alvin J. Helden. 2022. A New Species of the Unusual Leafhopper Genus Phlogis Linnavuori (Hemiptera: Cicadellidae: Signoretiinae) from Uganda. Zootaxa. 5093(4); 401-413. DOI: 10.11646/zootaxa.5093.4.1

    2:06p
    [Invertebrate • 2022] Ramisyllis kingghidorahi • A New Branching Annelid (Annelida: Polychaeta: Syllidae) from Japan


    Ramisyllis kingghidorahi Aguado, Ponz-Segrelles, Glasby, Ribeiro, Jimi & Miura,

    in Aguado, Ponz-Segrelles, Glasby, ... et Miura, 2022. 

    Abstract
    Among over 20,000 species of Annelida, only two branching species with a highly modified body-pattern are known until now: the Syllidae Syllis ramosa McIntosh, 1879, and Ramisyllis multicaudata Glasby et al. (Zoological Journal of the Linnean Society, 164, 481–497, 2012). Both have unusual ramified bodies with one head and multiple branches and live inside the canals of host sponges. Using an integrative approach (combining morphology, internal anatomy, ecology, phylogeny, genetic divergence, and the complete mitochondrial genome), we describe a new branching species from Japan, Ramisyllis kingghidorahi n. sp., inhabiting an undescribed species of Petrosia (Porifera: Demospongiae) from shallow waters. We compare the new species with its closest relative, R. multicaudata; emend the diagnosis of Ramisyllis; and discuss previous reports of S. ramosa. This study suggests a much higher diversity of branching syllids than currently known. Finally, we discuss possible explanations for the feeding behaviour in the new species in relation to its highly ciliated wall of the digestive tubes (especially at the distal branches and anus), and provide a hypothesis for the evolution of branching body patterns as the result of an adaptation to the host sponge labyrinthic canal system.

    Keywords: Mitochondrial genome, Phylogenetics, Sponge, Syllidae, Symbiosis, Morphology, Anatomy, Ecology

    Taxonomy
    Ramisyllis Glasby et al., 2012

    Diagnosis (after Glasby et al. (2012), emendations in bold).

    “Ribbon clade” Syllinae, with non-flattened body, more or less cylindrical segments and a multiaxial, dendriform pattern; first branch occurring after segments 14–24. Branches emerging after parapodia (not replacing them or dorsal cirri) and showing same segment size and cirri length as previous branches. Three antennae; palps free to base; two pairs of tentacular cirri; pharynx slender, mid-dorsal tooth absent in adults; dorsal cirri articulated, with alternating thick/slender pattern on mid-body and posterior segments; ventral cirri present, not articulated, inserted proximally; single type of simple chaeta present, tomahawk-shaped. Sexes separate. Reproduction by schizogamy, gemmiparitity. Acerous, dimorphic stolons. Commensal inside shallow water species of Petrosia. Mitochondrial gene order strongly modified. Nuclear ribosomal sequences highly derived compared to other Syllinae.

    Stereomicroscopy images of living specimens of Ramisyllis kingghidorahi n. sp. (A, C−H) and Ramisyllis multicaudata (B) for comparison.
    Ramisyllis kingghidorahi n. sp. Holotype. B R. multicaudata anterior region, dorsal view; picture modified from Ponz-Segrelles et al. (2021), with permission. C Prostomium and first segments in detail, dorsal view. D Anterolateral view of prostomium with details of palps and pharynx everted. E and F. Pharynx everted in ventral view. G Branching asymmetries in dorsal cirri. H Branching asymmetries in body shape.
    Scale bars: 1 mm A, B, 200 µm C, D, 100 µm E, F, 2 mm G, H


    Ramisyllis kingghidorahi n. sp. and host sponge Petrosia sp.
    A Anterior region in dorsal view, prostomium faces down. B Fragment of one specimen. C-F–f Host sponges in their natural habitat.
    Scale bars: 2 mm A, B, 1 cm C, D and 5 mm E, F




    Ramisyllis kingghidorahi n. sp. Aguado, Ponz-Segrelles, Glasby, Ribeiro, Jimi & Miura

    Diagnosis: Species of Ramisyllis, sister-group related to R. multicaudata, long anterior tentacular and dorsal cirri (twice long as midbody ones), long proventricle (through 4 segments), stolon stalks similar to other segments in regular branches and proliferation of new branches in intersegmental areas.

    Etymology: The name refers to King Ghidorah, the three-headed and two-tailed monster enemy of Godzilla. Both characters were created by Tomoyuki Tanaka based on Japanese mythology and folklore. King Ghidorah is a branching fictitious animal that can regenerate its lost ends. King Ghidorah is assumed to be a male and latinized accordingly.

    Distribution and habitat: Coastal waters of Sado Island, Japan, around 15 m deep; symbiont of Petrosia sp. (pink form).


    M. Teresa Aguado, Guillermo Ponz-Segrelles, Christopher J. Glasby, Rannyele P. Ribeiro, Mayuko Nakamura, Kohei Oguchi, Akihito Omori, Hisanori Kohtsuka, Christian Fisher, Yuji Ise, Naoto Jimi and Toru Miura. 2022. Ramisyllis kingghidorahi n. sp., A New Branching Annelid from Japan. 
    Organisms Diversity & Evolution. DOI: 10.1007/s13127-021-00538-4


    2:17p
    [Botany • 2022] Ipomoea aequatoriensis (Convolvulaceae) • Discovery and Characterisation of Sweetpotato’s Closest Tetraploid Relative


     Ipomoea aequatoriensis T.Wells & P.Muñoz, 

    in Munoz-Rodriguez, Wells, Wood, et al., 2022. 

    SUMMARY
    • The origin of sweetpotato, a hexaploid species, is poorly understood, partly because the identity of its tetraploid progenitor remains unknown. In this study, we identify, describe and characterise a new species of Ipomoea that is sweetpotato’s closest tetraploid relative known to date and probably a direct descendant of its tetraploid progenitor.
    • We integrate morphological, phylogenetic, and genomic analyses of herbarium and germplasm accessions of the hexaploid sweetpotato, its closest known diploid relative Ipomoea trifida, and various tetraploid plants closely related to them from across the American continent.
    • We identify wild autotetraploid plants from Ecuador that are morphologically distinct from I. batatas and I. trifida, but monophyletic and sister to I. batatas in phylogenetic analysis of nuclear data.
    • We describe this new species as Ipomoea aequatoriensis T.Wells & P.Muñoz sp. nov., distinguish it from hybrid tetraploid material collected in Mexico; and show that it likely played a direct role in the origin of sweetpotato’s hexaploid genome. This discovery transforms our understanding of sweetpotato’s origin.

    Keywords: crop wild relatives, Ecuador, genomics, herbarium specimens, Ipomoea aequatoriensis new species, tetraploid


     Ipomoea aequatoriensis T.Wells & P.Muñoz sp. nov.
     

    Pablo Munoz-Rodriguez, Tom Wells, John R.I. Wood, Tom Carruthers, Noelle L. Anglin, Robert L. Jarret and Robert W. Scotland. 2022. Discovery and Characterisation of Sweetpotato’s Closest Tetraploid Relative. New Phytologist. DOI: 10.1111/nph.17991

    Mystery of sweetpotato origin uncovered, as missing link plant found by Oxford research

    3:10p
    [Botany • 2021] Cornukaempferia argentifolia (Zingiberaceae) • A New Species from Northern Thailand


    Cornukaempferia argentifolia Boonma & Saensouk, 

    in Saensouk, Saensouk & Boonma, 2021.

     
    Abstract
    Cornukaempferia argentifolia, a new species of Zingiberaceae from northern Thailand, is described and illustrated along with photographs, notes on its distribution, ecology, and IUCN conservation status. An identification key to the species of Cornukaempferia Mood & K.Larsen in Thailand and a distribution map are also presented.

    Keywords: Cornukaempferia kamolwaniae, Cornukaempferia larsenii, Endangered, Phitsanulok province.


    Cornukaempferia argentifolia Boonma & Saensouk:
    a. Habit with flowers and underground parts; b. Front view of flower; c. Bract; d. Calyx; e. Dorsal corolla lobe; f. Lateral corolla lobes; g. Lateral staminodes; h. Labellum; i. Front and side view of anther; j. Ovary with epigynous glands
     (from T. Boonma 23; drawn by T. Boonma).

    Cornukaempferia argentifolia Boonma & Saensouk:
    a. Habit; b. Cross-section of rhizome; c. Flowers;  
    (from T. Boonma 23; photos by T. Boonma).

    Cornukaempferia argentifolia Boonma & Saensouk:
     d. (from left to right) side view and front view of anther with calyx, (upper row) inner side of dorsal corolla lobe, lateral corolla lobes, lateral staminodes, and upper side of the labellum, (lower row) outer side of dorsal corolla lobe, lateral corolla lobes, lateral staminodes, lower side of the labellum, and bract
    (from T. Boonma 23; photo by T. Boonma).

    Cornukaempferia argentifolia Boonma & Saensouk, sp.nov. 

     Similar to Cornukaempferia larsenii P. Saensouk but differs by its leaves (adaxially silver without markings vs. green with few silvery markings adaxially), bracts (glabrous vs. sparsely hairy), corolla tube (finely hairy vs. glabrous), labellum (obovate with emarginate apex vs. campanuloid with rounded apex) and filaments (finely hairy vs. glabrous).

    Habitat: Occurring at elevations of 420 meters above sea level, growing in sandy loam soil, moist and close to the watercourse in a deciduous forest. 

    Distribution: Hitherto endemic to northern Thailand (Fig. 3).

     Etymology: The specific epithet “argentifolia” is derived from two Latin words, “argenti” meaning “silver” and “folia” meaning “leaves” and refers to its silvery leaves. เปราะทองใบเงิน


    Piyaporn Saensouk, Surapon Saensouk and Thawatphong Boonma. 2021. Cornukaempferia argentifolia (Zingiberaceae), A New Species from Northern Thailand. Rheedea. 31(4); DOI: 10.22244/rheedea.2021.31.04.03

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