Species New to Science's Journal
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Monday, April 14th, 2025
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12:48a |
[Botany • 2025] Crotalaria luteopurpurea (Fabaceae) • A New elegant Species from Drylands of Karnataka, India  | Crotalaria luteopurpurea Dalavi, Ramesh, Basavraj, Sanjappa & S.R.Yadav,
in Dalavi, Ramesh, Basavaraj, Yadav, Jadhav-Rathod et Sanjappa, 2025. |
Abstract Crotalaria luteopurpurea Dalavi et al. is described with photo-plate here as a new species from Bagalkot district of Karnataka, India. It is an annual, procumbent, sparingly branched herb with dimorphic leaves, usually solitary flowers, bicolored corolla (standard petals bright yellow on both surfaces, wing petals purple with yellow nectar guides), densely hirsute blotched pods and polished seeds with mottled testa. The newly proposed species grows sympatrically with C. bifaria L.f. and maintains consistent differences without any intermediate form. The blooming time of flowers also differs in both species (C. bifaria flowers open in the early day hours and close in the evening, whereas C. luteopurpurea flowers bloom in the late afternoon or evening hours and remain open whole night). Due to this reproductive isolation, we could not collect any intermediate forms between these species. The new species is described with informative photo plates, identification keys, and ecological notes.
Keywords: Badami, Karnataka, Crotalaria, Fabaceae, Rattlepod
 | Crotalaria luteopurpurea Dalavi, Ramesh, Basavraj, Sanjappa & S.R.Yadav: a. Habit; b & c . Dimorphic leaves; d. Bracts; e. Flower–front view; f. & g. Flower–lateral view; h. Flower–dorsal view; i. Calyx; j. Dissected corolla; k. Enlarged portion of wing; l. Standard petal–dorsal view; m. Androecium; n. Gynoecium; o & p. Pods; q. Seeds
(from J.V. Dalavi, R. Pujar & B. Saliyavar BCV-001; photos by Jagdish Dalavi). |
Crotalaria luteopurpurea Dalavi, Ramesh, Basavaraj, Sanjappa & S.R.Yadav, sp. nov.
It is allied to C. bifaria L.f. (Fig. 2) but differs in its habit (much branched vs. procumbent sparingly branched), leaves (lower leaves ovate to orbicular and upper ovate to oblong, less than 1.5 times longer than lower leaves vs. lower leaves orbicular to ovate and upper leaves elliptic-lanceolate to oblong-lanceolate, 1.5–3 times longer than lower ones), peduncle (diffused, weak and creeping vs. erect to sub-erect) corolla (entirely blue on ventral surface side while standard yellow with brown veination on backside vs. bicolored ventral surface while standard bright yellow on both the surfaces and wings purple colored), standard (as long as or broader than long, blue inside vs. longer than broader and bright yellow inside), wings (blue with white shade near claw vs. purple with bright yellow near claw), and seeds (usually brown to black shiny rarely slightly blotched or mottled vs. faint brown, always distinctly blotched or mottled).
Etymology: The specific epithet ‘luteopurpurea’ is
derived from color of the corolla, standard bright
yellow (latin luteo = yellow) and purple wing and
keel petals (latin purpurea = purple).
Dalavi J.V., Ramesh P., Basavaraj S., Yadav S.R., Jadhav-Rathod V.D. and M. Sanjappa. 2025. Crotalaria luteopurpurea (Fabaceae) A New elegant Rattlepod from Drylands of Karnataka, India. Rheedea. 35(1); 13–18. DOI: 10.22244/rheedea.2025.35.01.03 https://rheedea.in/journal/1Qk5udtv [31-Mar-2025]
| 3:08p |
[Botany • 2025] Somnuekia flaviflora (Malvaceae: Brownlowioideae) • A New Genus and Species from Thailand  | Somnuekia Duangjai, Chalermw., Sinbumr. & Suddee, gen. nov. Somnuekia flaviflora Duangjai, Chalermw., Sinbumr. & Suddee,
in Chalermwong, Duangjai, Sinbumroong, Thananthaisong, Daonurai, Kaewmuan, Poopath, Bhuchaisri, Tangjaipitak, Chantarasuwan, Ngernsaengsaruay, Rueangruea et Suddee, 2025. |
Abstract Somnuekia is described as a new genus of Malvaceae, currently known only from a few locations in the upper part of Tenasserim in northern and peninsular Thailand. Morphological and molecular phylogenetic analyses, based on plastid DNA sequence regions, support the recognition of this new genus within the Brownlowioideae (Malvaceae). Its distinct phylogenetic position, along with a distinct set of morphological and palynological characteristics, strongly support the recognition of Somnuekia as a new genus. A formal description of Somnuekia flaviflora is provided along with illustrations, photographs, a distribution map and conservation notes. Furthermore, this new genus is compared to other Asian genera within the subfamily.
Key words: Endemic, monotypic, phylogenetic, taxonomy
 | Somnuekia flaviflora A habit, fruiting branch and leaf-like bracts B, C leaves B leaf showing adaxial surface C leaf showing abaxial surface and venation D mature flower bud E–K opened flower and its components E opened flower F sepals showing pilose adaxial surface G petals H staminode I stamens: anterior view (left), posterior view (middle) and lateral view (right) J dissected flower with sepals and petals removed, stamens: anterior view (left), posterior view (middle) and lateral view (right) K pistil L mature capsules M mature capsules at splitting stage N carpel in lateral view, split longitudinally to show seed arrangement O mature seeds.
A–C, L–O from Chalermwong et al. 20220317-01 (type) D–K from Sinbumroong & Chalermwong 20190128-01. Drawings by W. Bhuchaisri. Scale bars: 5 cm (A–C); 1 cm (D, E); 5 mm (F); 1 cm (G); 5 mm (H); 1 mm (I); 5 mm (J); 5 mm (K); 2 cm (L–N); 2 mm (O). |
 | Somnuekia flaviflora A flowers and flower bud B–D flowers at different stages of anthesis B early blooming flower with indehiscent anther C blooming flower with dehiscent anther D late blooming flower with dehiscent anther E immature capsules with immature seeds, showing reddish-pink stellate scale covering F mature capsule with mature seeds, showing dark brown stellate scale covering.
Flowers shown in A–C were taken from branches placed in a plastic bag overnight. |
 | Somnuekia flaviflora A habit B trunk and bark C lower-branch shoot and leaves C1 apical shoot of the lower-branch shoot, showing filiform stipules and trichome covering D terminal bud of upper branch shoot showing scale covering E leaf-like bracts in infructescence F mature flower buds and blooming flower G infructescence with immature and mature capsules H immature capsules with prominent ridges I lateral view of carpel, split longitudinally to show seed arrangement and mature seeds. |
Subfam. Brownlowioideae Burret
Somnuekia Duangjai, Chalermw., Sinbumr. & Suddee, gen. nov. Somnuekia flaviflora Duangjai, Chalermw., Sinbumr. & Suddee
Diagnosis. Somnuekia Duangjai, Chalermw., Sinbumr. & Suddee resembles Pityranthe Thwaites morphologically, but differs from the latter by its unique pollen, having more numerous ovules in each loculus and fruit characters. The detailed distinguishing characters of this new genus and other genera are listed in Table 2. ....
Porntawat Chalermwong, Sutee Duangjai, Aroon Sinbumroong, Theerawat Thananthaisong, Kunanon Daonurai, Anusara Kaewmuan, Manop Poopath, Wanwisa Bhuchaisri, Kusol Tangjaipitak, Bhanumas Chantarasuwan, Chatchai Ngernsaengsaruay, Sukid Rueangruea and Somran Suddee. 2025. Somnuekia flaviflora (Malvaceae, Brownlowioideae), A New Genus and Species from Thailand. PhytoKeys 254: 221-243. DOI: doi.org/10.3897/phytokeys.254.141219
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