孿生花屬（Stemodia L.）：臺灣玄參科新歸化屬

Stemodia L. (Scrophulariaceae), a Newly Naturalized Genus in Taiwan

本文報導一新近發現於臺灣北部平地的玄參科新歸化屬植物：輪葉孿生花（新擬中名，Stemodia verticillata(Mill.) Hassl.），本文描述此一新歸化植物，並提供線描圖、分布圖及照片以利鑑定。

Stemodia verticillata (Mill.) Hassl. (Scrophulariaceae) was found in the lowlands of northern Taiwan. This represents a new naturalization not only for this species but also for the genus on this island. A taxonomic account of S. verticillata is treated in this study. A line-drawing, distribution map and photographs of this species are also provided to aid in identification.