A New Double Flowered Form of Parnassia palustris var. tenuis (Celastraceae) in Japan

Abstract

A new double flowered form of Parnassia palustris L. var. tenuis Wahlenb. is described: f. multipetala H.Ohashi. It was found in Mt. Shirouma in Nagano Pref., Honshu, Japan. A new Japanese name for the form, Yaezaki-ko-umebachisō is proposed．