A New Locality of Marchantia papillata subsp. grossibarba (Marchantiaceae) for Hokkaido, Japan

Abstract

Marchantia papillata Raddi. subsp. grossibarba (Steph.) Bischl. (Marchantiaceae), which had been reported from the west of Kanto district, was found in Mt. Usu, Hokkaido, Japan. The subspecies grows on soil around fumaroles on Mt. Usu, which is thought to have allowed it to grow in this cooler region at higher latitudes.