Two new species of Hiptage (Malpighiaceae) from Yunnan, Southwest of China

Abstract

Hiptagepauciflora Y.H. Tan & Bin Yang and Hiptageferruginea Y.H. Tan & Bin Yang, two new species of Malpighiaceae from Yunnan, South-western China are here described and illustrated. Morphologically, H.pauciflora Y.H. Tan & Bin Yang is similar to H.benghalensis (L.) Kurz and H.multiflora F.N. Wei; H.ferruginea Y.H. Tan & Bin Yang is similar to H.calcicola Sirirugsa. The major differences amongst these species are outlined and discussed. A diagnostic key to the two new species of Hiptage and their closely related species is provided.

A new species of Hiptage (Malpighiaceae) from Nujiang Gorge, southwest China

“…The genus comprises ca 30 species (Anderson et al , Chen and Funston , Ren et al , Ren ), of which seven are endemic to China (Chen and Funston ). Due to the dominating summer monsoons in Asia (Ren , Jiang et al ), Hiptage reach to more than 25° northern latitude in Yunnan, Guangxi, southeast Tibet and South Guizhou in southwestern China, and some narrowly‐endemic Hiptage species are found here (Chen and Funston , Ren 2015, Yang et al , Tan et al ).…”

“…Hiptage is distinctive by its diagnostic three‐winged samara and mirror‐image flowers with heteranthery (Ren et al , Yang et al ). Mirror‐image flowers are a sexual polymorphism in which the style is deflected either to the left (left‐styled flower) or the right (right‐styled flower) (Barrett et al , Jesson and Barrett ), and it is recognized as a specialized insect‐pollination mechanism (Jesson and Barrett , Ren et al ).…”

Molecular phylogeny of Hiptage (Malpighiaceae) reveals a new species from Southwest China

“…Hiptage incurvatum is only known from two localities near Mt. Cangshan, Pingpo Town, Dali City, North Yunnan, growing on soil slopes or forest margins and river valleys, at 1400–1700 m. In China, a total of 13 species of Hiptage now have been recorded, 10 of which, including the new species, are endemic to the country (Chen and Funston 2008; Ren 2015; Yang et al 2018).…”

“…We provide here the first well-sampled phylogenetic study for the Asian endemic Hiptage , although this phylogeny is based on a single marker and most clades are not highly supported. Hiptage is one of the largest Old-World genera of Malpighiaceae, being adapted to various habitats such as forest edges, river valleys and limestone hills in Asia (Sirirugsa 1991; Ren 2015; Yang et al 2018). Our phylogenetic tree shows that two species from South Vietnam and Thailand (i.e.…”

“…is a genus of Malpighiaceae currently comprising ca. 40 species (Anderson et al 2006; Chen and Funston 2008; Ren 2015; Yang et al 2018). Its species typically grow as woody lianas in the margins of evergreen and seasonal rainforests, in river valleys, or on limestone hills of South and Southeast Asia (Sirirugsa 1991; Srivastava 1992; Chen and Funston 2008).…”