安徽香茶菜属(唇形科)一新种

Isodon Suzhouensis (Lamiaceae):A New Species from Anhui

文本介绍了发现于安徽省宿州市唇形科香茶菜属植物一新种——王枣子Isodon suzhouensis。该新种与香茶菜I.amethystoide和碎米桠I.rubescens相近。本种叶片较宽,基部平截下延,聚伞花序组成极为分散的圆锥花序,花萼裂浅,萼齿钝圆,开花时雄蕊与花柱外露易与香茶菜区别;叶片卵形,基部平截下延,无假翅,花白色或蓝白色,上唇带蓝紫色斑点,无退化雄蕊易与碎米桠区别。王枣子作为中草药一直与香茶菜混淆,新种的发表有助于澄清王枣子的种源问题。

Isodon suzhouensis,a new species of Lamiaceae from Suzhou city, Anhui province, is described and illustrated.The new species resembles I.amethystoide and I.rubescens,but it has wider leaf blade, downwards extending base, cymes forming an extremely loose panicles, shallow cleft calyx, and round calyx teeth.Stamens and styles exposes when flowering which makes it easy to distinguish from amethystoide.It differs from the latter in ovate leaf blade, downwards extending base, no fake wings, white or blue-white flowers with blue-purple spots on the upper lip, and stamenless degeneration.Isodon suzhouensis has been confused with I.amethystoide as a Chinese medicine.The publication of the new species helps to clarify the provenance problem of Wang Zaozi(Isodon.suzhouensis).