Koyamasia
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BibTeX: @article{Bunwong2014PhytoKeys37, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Bunwong2014PhytoKeys37">{{Citation See also the citation download page at the journal. |
Ordo: Asterales
Familia: Asteraceae
Name
Koyamasia H.Rob., Proc. Biol. Soc. Washington 112(1): 234. 1999. – Wikispecies link – IPNI link – Pensoft Profile
Type
Camchaya calcarea Kitam., Acta Phytotax. Geobot. 23: 71. 1968.
Description
Perennial herbs. Stems erect, pubescent. Leaves simple, alternate, petiolate, lamina ovate or elliptic, margin serrate, apex acute or acuminate, base attenuate. Capitulescences terminal, solitary or paniculate. Capitula discoid, homogamous; pedunculate, florets bisexual and fertile. Involucre imbricate, phyllary tips recurved. Florets 60–100; corollas purplish or white, actinomorphic; corolla lobes 5. Anthers 5, syngenesious. Styles 2-branched, inner surface covered with stigmatic papillae, outer surface covered with sweeping hairs reaching to below style bifurcation. Achenes subterete, 10-ribbed, carpopodium absent. Pappus in one series of bristles, deciduous. Pollen echinolophate, 3-porate, without micropuncta.
Three species are recognized in Thailand.
Key to the species
Taxon Treatment
- Bunwong, S; Chantaranothai, P; Keeley, S; 2014: Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys, 37: 25-101. doi
