兩種少有報導的稀有植物 – 雲南球子草（Peliosanthes yunnanensis）和硯山毛蘭（Trichosma yanshanensis）最近在越南被發現。本文除了報導此二種植物之分類、形態特徵、模式標本、生境、分布及繪圖外，亦特別說明此二物種：Trichosmachlorantha (Aver. & Averyanova) Aver. 及硯山毛蘭（T. yanshanensis (S.-C. Chen)Aver.）之新組合的命名。

Two rare, poorly known species – Peliosanthes yunnanensis(Convallariaceae) and Trichosma yanshanensis (Orchidaceae) were recently discovered in Vietnam representing new additions to the flora of the country. Detailed information on taxonomy, types, morphology, ecology, distribution and studied voucher specimens, as well as illustrations are provided here for both species. Two necessary nomenclature combinations are also proposed, namely - Trichosma chlorantha (Aver. & Averyanova)
Aver. and T. yanshanensis (S.-C. Chen) Aver.