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Sunday, June 5th, 2022
| Time | Event | ||||||
| 9:15a | [Botany • 2022] Handroanthus abayoy (Bignoniaceae) • A New Species endemic from Bolivia
Abstract Handroanthus abayoy is a new species endemic to the southern region of the department of Santa Cruz, Bolivia. Morphologically the most similar species to H. abayoy is H. selachidentatus, both species are part of Tabebuia group II according to the classification proposed by Grose & Olmstead (2007). However, the two species have a different geographic distribution, and at least 15 morphological characteristics, both vegetative and reproductive, that distinguish one from the other. Keywords: abayoy, Cerrado, Eudicots    Handroanthus abayoy Villarroel & G.A.Parada, sp. nov. Etymology:— The specific epithet “abayoy” refers to the main type of vegetation where the species lives, the abayoy, a word from the Bésiro language that means dwarf forest. This type of vegetation has a series of biotic and abiotic characteristics that differentiate it from the Pantantal, the Chaco and the Chiquitano Dry Forest; being, biophysically more similar to the Cerrado ( Ibisch et al. 2003, Navarro 2011, Villarroel et al. 2016). Daniel Villarroel, G. Alexander Parada, Maira T. Martinez-Ugarteche and Bente B. Klitgaard. 2022. Handroanthus abayoy, A New Species of Bignoniaceae endemic from Bolivia. Phytotaxa. 547(1); 97-104. DOI: 10.11646/phytotaxa.547.1.9 | ||||||
| 9:15a | [Botany • 2022] Impatiens nushanensis (Balsaminaceae) • A New Species from Yunnan, China
Abstract Impatiens nushanensis (Balsaminaceae), a new species from Yunnan, China, is described and illustrated here. The new species is morphologically most similar to I. purpurea, but differs by having two pairs of lateral sepals and deep purple lower lobe of the lateral united petal with an acuminate and ribbon-like apex. Furthermore, phylogenetic analysis based on molecular data also support the recognization of this new species. Key words: Balsaminaceae, taxonomy, flora of China, Nushan Mountain, new taxon 
Impatiens nushanensis Z. Wang, P. P. Wu & S. X. Yu, sp. nov. Etymology:—The epithet nushanensis refers to the type locality, Nushan Mountain, and the Chinese name of this new species is given as 怒山凤仙花. Zi Wang, Po-Po Wu, Chang-Cheng Liu, Ke Guo and Sheng-Xiang Yu. 2022. Impatiens nushanensis (Balsaminaceae), A New Species from Yunnan, China. Phytotaxa. 545(2); 186-196. DOI: 10.11646/phytotaxa.545.2.7 | ||||||
| 9:17a | [Botany • 2022] Allium izmirense (Amaryllidaceae) • A New Species of Allium sect. Codonoprasum Rchb. from Turkey
Allium izmirense Pirhan, sp. nov. (Amaryllidaceae) is described here as a new species. Diagnostic morphological characters, a full description, and detailed illustrations are given herein. Allium izmirense Pirhan, sp. nov. is restricted to Mt. Güme, a part of the Aydın Mountains series near the Tire District of İzmir Province in western Anatolia, Turkey. According to its morphological features, it belongs to Allium sect. Codonoprasum. It shows morphological similarities to A. carlstroemi C. Catt., A. stamineum Boiss., A. armenum Boiss., A. tchihatschewii subsp. dumanii (Koyuncu & Koçyigit) Yild., A. hoshabicum Fırat, and A. huber-morathii Kollman, which belong to the same section. Allium izmirense sp. nov. is close related to A. carlstroemi. It is easily distinguished from this species mainly by its outer tunic papyraceous; cylindrical and pubescent leaves; leaf sheaths for 1/3-1/2 of the stem length; spathe shorter valves 0.5-1.4 cm long, longer valves 1.4-3(-6) cm long; pedicels length 0.5-1.5 cm; tepal pinkish purple, with distinct midrib, length 2.5-3.5 mm; style 2-3 mm long. According to the IUCN criteria A. izmirense Pirhan, sp. nov. is suggested as Critically Endangered (CR) B2ab (ii,iii,v). KEYWORDS: Amaryllidaceae, pollen morphology, seed morphology, İzmir, western Anatolia, new species
  Ademi Fahri Pirhan. 2022. Allium izmirense Pirhan, sp. nov. (Amaryllidaceae), A New Species of Allium sect. Codonoprasum Rchb. from Turkey. ADANSONIA. 44(13); 133-140. Allium izmirense Pirhan, sp. nov. (Amaryllidaceae), une espèce nouvelle d'Allium sect. Codonoprasum Rchb. de Turquie. Allium izmirense Pirhan, sp. nov. (Amaryllidaceae) est décrit ici comme une nouvelle espèce. Les caractères morphologiques diagnostiques, une description complète, et des illustrations détaillées sont fournis. Allium izmirense Pirhan, sp. nov. est limité au mont Güme, une partie des monts Aydın, près du district de Tire (province d'İzmir, Anatolie occidentale, Turquie). D'après ses caractéristiques morphologiques, le taxon nouveau appartient à la section Codonoprasum du genre Allium. Il présente des similitudes morphologiques avec A. carlstroemi C. Catt., A. stamineum Boiss., A. armenum Boiss., A. tchihatschewii subsp. dumanii (Koyuncu & Koçyigit) Yild., A. hoshabicum Fırat et A. huber-morathii Kollman, qui appartiennent à la même section. Allium izmirense Pirhan, sp. nov. est un proche parent de A. carlstroemi. Il se distingue facilement de cette espèce par sa tunique externe papyracée, ses feuilles cylindriques et pubescentes, ses gaines foliaires sur 1/3-½ de la longueur de la tige, ses spathes à valves courtes de 0,5-1,4 cm de long, à valves plus longues de 1,4-3(-6) cm de long, ses pédicelles de 0,5-1,5 cm de long, son tépale rose pourpre, à nervure médiane distincte, de 2,5-3,5 mm de long, son style de 2-3 mm de long. Selon les critères de l'UICN, A. izmirense Pirhan, sp. nov. est suggéré comme étant en danger critique d'extinction (CR) B2ab (ii, iii, v).   | ||||||
| 9:17a | [Botany • 2022] Cyrtanthus novus-annus (Amaryllidaceae: Cyrtantheae) • A New Species of Cyrtanthus from the Agulhas Plain, Western Cape, South Africa
Highlights • A new species, Cyrtanthus novus-annus adds another narrowly endemic species on the Agulhas Plain, South Africa. • Based on morphology Cyrtanthus novus-annus is inferred to be sister to C. guthrieae. • The species pair occupies divergent edaphic sites. Abstract Described is a new species of Cyrtanthus within the monogeneric tribe Cyrtantheae (Amaryllidaceae: Amaryllidoideae) from the low-lying Agulhas Plain, Western Cape, South Africa. Known from the Nuwejaars Wetlands area, Cyrtanthus novus-annus occupies habitats transitional between Elim Ferricrete Fynbos and Central Rûens Shale Renosterveld. The erect, mostly solitary-flowered inflorescence has a nearly sessile, funnel-shaped flower in common with C. guthrieae, which occurs on the mountains close to Bredasdorp in acidic soils of Overberg Sandstone Fynbos. The two species differ in the size, colouring, and markings of the flowers and in their flowering times. Their morphological similarity and the close proximity of their habitats suggest that C. novus-annus and C. guthrieae constitute an example of edaphically differentiated sister taxa, a pattern found in several other endemics of the region, as well as in the sister pair Brunsvigia elandsmontana and B. marginata (tribe Amaryllideae) from contrasting habitats in Swartland lowland alluvium and the abutting sandstone mountains, respectively. Keywords: Core Cape Floristic Region, Edaphic differentiation, Endemics, South Africa, Taxonomy
 Cyrtanthus novus-annus Snijman, sp. nov. New species allied to C. guthrieae L.Bolus, with which it has few, linear leaves, an erect, mostly solitary-flowered inflorescence and a nearly sessile, funnel-shaped flower. It differs in its lower stature, ± 160 mm when flowering, smaller delicate pink flowers which appear in mid to late summer, smaller tepals 20–25 × 7–8 mm with dark pink keels, and short stamens exserted from the throat by 10–15 mm. Etymology: The species epithet honours the recent restoration of biodiversity in the Nuwejaars Wetlands area.   D.A. Snijman. 2022. A New Species of Cyrtanthus (Amaryllidaceae: Cyrtantheae) from the Agulhas Plain, Western Cape, South Africa. South African Journal of Botany. 148; 601-604. DOI: 10.1016/j.sajb.2022.05.027 | ||||||
| 11:10a | [Ichthyology • 2022] Cambeva gamabelardense • An Endangered New Catfish Species of the Genus Cambeva (Siluriformes: Trichomycteridae) from the Rio Chapecó drainage, southern Brazil
Numerous species in fast–flowing streams of southern Brazil have not been described to date. As some of these species inhabit areas under pressure due to the ongoing, intense process of environmental degradation, formal descriptions are urgently needed so as to elaborate strategies for their conservation. We describe a new species, Cambeva gamabelardense n. sp., found in the middle Rio Chapecó drainage, Uruguay River basin, in an area where intense deforestation and soya plantation is endangering fish species. The new species is considered closely related to C. panthera, a species occurring in an isolated coastal basin about 380 km from the area inhabited by the new species, as the two species share a unique jaguar–like pattern on the flank. The new species differs from C. panthera by having shorter barbels, a different position of the origin of the dorsal–fin, more vertebrae, and osteological features that are unique among congeners. Keywords: Cambeva gamabelardense n. sp., Comparative morphology, Mountain biodiversity, Osteology, Uruguay River basin
Class Actinopterygii Klein, 1885 Order Siluriformes Cuvier, 1817 Family Trichomycteridae Bleeker, 1858 Cambeva gamabelardense n. sp. (figs. 1–2) Diagnosis: Cambeva gamabelardense is distinguished from all other congeners, except C. panthera Costa, Feltrin and Katz, 2021, by having a jaguar–like colour pattern on the flank, consisting of irregularly shaped pale brown spots of variable size and shape, with their margins overlapped by small dark brown spots (fig. 1; vs. never a similar colour pattern). Cambeva gamabelardense differs from C. panthera by having shorter barbels, with the tip of the maxillary and rictal barbels reaching the middle portion of the interopercular patch of odontodes (vs. the tip of the maxillary barbel reaching the middle of the pectoral–fin base and the tip of the rictal barbel reaching between the interopercular patch of odontodes and the pectoral–fin base) and the tip of the nasal barbel reaching between the eye and the opercular patch of odontodes (vs. the tip of the nasal barbel reaching the middle of opercular patch of odontodes); the first pectoral–fin ray terminating in a rudimentary filament, weakly extending beyond the fin membrane (vs. filament about 10–15% of the pectoral–fin length); the posterior extremity of the pelvic fin at a vertical through the anterior portion of the dorsal–fin base (vs. middle portion); the dorsal–fin origin at a vertical through the centrum of the 20th or 21st vertebra (vs. through the centrum of the 18th or 19th vertebra); and 38 or 39 vertebrae (vs. 37). Cambeva gamabelardense differs from all other trichomycterines examined by its long metapterygoid, its horizontal length longer than the horizontal length of hyomandibula anterior outgrowth (fig. 2B; vs. shorter) and a small lateral projection on the lateral margin of the lateral ethmoid, just posterior to the articular facet for the autopalatine (fig. 2A; vs. absence of a similar projection). Distribution: Cambeva gamabelardense n. sp. is only known from the type locality area, in the upper Rio Chapecó drainage, Rio Uruguai basin, at altitudes between about 750 and 860 m a.s.l. (fig. 3). Etymology: The name gamabelardense (gamma, the third letter of the Greek alphabet, and abelardense, a Portuguese word referring to people born in Abelardo Luz municipality) is an allusion to the third new species of Cambeva known to occur in this area. The other two species are described in Costa et al. (2022). W. J. M. Costa, C. R. M. Feltrin and A. M. Katz. 2022. An Endangered New Catfish Species of the Genus Cambeva (Cambeva gamabelardense n. sp.) (Siluriformes, Trichomycteridae) from the Rio Chapecó drainage, southern Brazil. Animal Biodiversity and Conservation. 45.1: 123-129. DOI: 10.32800/abc.2022.45.0123  |
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