Abstract
A new species, Blumea htamanthii Y.L. Peng, C.X. Yang & Y. Luo from Myanmar is described. The new species is distinguished from B. bifoliata by its leaves with short petioles, abaxially purple, leaf blade with papillary hair and sparse multicellular villous, capitula with 1–4 heads, glabrous florets and usually unbranched stems. A key to Blumea species in Myanmar is provided.
Highlights
Blumea DC. is one of the largest and most taxonomically difficult genera in the Tribe Inulaceae, which includes approximately 100 species worldwide (Randeria 1960; Anderberg 1991, 1994, 2009; Pornpongrungrueng et al 2016)
During our fieldwork in Myanmar in 2019, we found an undescribed species of Blumea
The plant that we collected in the Htamanthi Wildlife Reserve, Sagaing, is distinguished from any other taxa of Blumea by its specific flowers and leaves, i.e. its basal rosette abaxially purple leaves with papillary hairs and multicellular villous and 1–4 capitula at the ends of the peduncles and unribbed achenes
Summary
Blumea DC. is one of the largest and most taxonomically difficult genera in the Tribe Inulaceae, which includes approximately 100 species worldwide (Randeria 1960; Anderberg 1991, 1994, 2009; Pornpongrungrueng et al 2016). Blumea is a monophyletic genus supported by molecular data (Pornpongrungrueng et al 2007, 2009). Blumea is primarily distributed in tropical Asia, Africa and Oceania, while its highest diversity is in tropical Asia (Pornpongrungrueng et al 2016). With the exception of the most common. Weeds in disturbed habitat, some species of Blumea have very narrow distribution areas at the edge of the forest. With the exception of partial revisions of 49 species of Blumea throughout the whole world by Randeria (1960) and of 27 species in continental Southeast Asia by Pornpongrungrueng et al (2016), a whole revision of this genus worldwide is still lacking. Seventeen species were reported from Myanmar (Kress et al 2003)
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