A New Species of Viola in Japan

Abstract

Viola rostrata var. crassifolia Hashimoto (nom. nud.) has affinity with V. faurieana W. Becker rather than V. rostrata Pursh. However, this plant differs from V. faurieana by having longer spur of corolla and smaller and not lustrous leaves. It is growing in rocky, not stony, places. Thus, it should be treated as a distinct species, and is named Viola awagatakensis Yamazaki, I. to & Ageishi.