Taxonomic Notes on Pavetta L. (Rubiaceae) from Thailand and New Records for Cambodia, Laos and Myanmar
Keywords:
lectotype, Pavetteae, synonym, taxonomyAbstract
A taxonomic revision of genus Pavetta in Thailand is presented, 14 species (15 taxa) are listed, namely P. aspera Craib, P. brevituba Craib, P. fruticosa Craib, P. graciliflora Wall. ex Ridl., P. humilis Hook.f., P. kedahica Bremek., P. napieri (Ridl.) Bremek., P. naucleiflora R.Br. ex G. Don, P. petiolaris Craib, P. salicina (Ridl.) Bremek., P. siamica Bremek., P. sylvatica Blume, P. tomentosa Roxb. ex Sm., P. tomentosa var. glabrescens (Kurz) Craib and P. wallichiana Steud. ex Craib, one of which, P. brevituba is endemic to Thailand. Lectotypes for Pavetta aspera, P. aspera var. breviflos Craib, P. graciliflora var. latifolia Craib, P. indica L. var. polyantha Hook.f., P. laoticensis Bremek., P. naucleiflora R. Br. ex G. Don, P. petiolaris and P. pierrei Bremek. are designated. Pavetta finlaysoniana Wall. ex Bremek. and P. laoticensis Bremek., are reduced to synonymy under P. aspera. Pavetta birmanica Bremek., P. birmanica var. glabrescens Bremek., P. birmanica var. tomentosa Bremek. and P. gamblei Bremek., are reduced to P. fruitcosa and P. pusilliflora Bremek. is reduced to P. petiolaris. Pavetta formosa Bremek. is also reduced to P. wallichiana. One species new to Thailand, Pavetta napieri; one new to Myanmar, P. aspera; one to Cambodia, P. sylvatica and two to Laos, P. fruticosa and P. naucleiflora. A key to the species of Pavetta in Thailand is provided with distribution, ecology and vernacular names. Specimens examined and photographes of some species are also given.
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