Mollugo viscosa sp. nov. (Molluginaceae), a segregate of M. brasiliensis from Minas Gerais in eastern Brazil

The new species Mollugo viscosa Thulin & Harley is described from Minas Gerais in eastern Brazil. It was previously part of the recently published M. brasiliensis Thulin & Harley, a species that was found to be non‐monophyletic in molecular phylogenetic analyses. Mollugo brasiliensis is here divided into a northern species (M. brasiliensis s.str.) in Bahia and a southern species (M. viscosa sp. nov.) in Minas Gerais. The new species differs from M. brasiliensis in its denser and more viscous indumentum, and in its distinctly smaller seeds with smaller tubercles and a smaller hilar peg, and from its sister species M. ulei by being a perennial herb with bisexual flowers.     

中国粟米草科分类修订

粟米草科(Molluginaceae)隶属于石竹目,是一个分类极为困难的被子植物类群,关于该科的分类学界定在众多不同被子植物分类系统中争议颇大。在最近的分子系统学研究中,粟米草科的范围被准确界定,全球共包含11属。在此基础上对中国粟米草科类群进行了分类修订,最终确认中国产粟米草科植物5属7种,其中线叶漆姑粟草[Hypertelis umbellata (Forssk.)Thulin]为中国分布新记录种。更新了分种检索表,并提供了各属形态描述及相关物种的地理分布图。     

粟米草科——内蒙古一分布新记录科

报道了内蒙古1个分布新记录科——粟米草科(Molluginaceae),该科主要分布于热带和亚热带地区。相关凭证标本存放于内蒙古大学植物标本馆(HIMC)。