Notothylas irregularis (Notothyladaceae, Anthocerotophyta), a new species of hornwort from northern Thailand

摘要

Notothylas irregularis Chantanaorr. is described and illustrated from Doi Chiang Dao Wildlife Sanctuary, Chiang Dao District, Chiang Mai Province, northern Thailand. It is similar to Notothylas yunnanensis T. Peng et R. L. Zhu, but differs in its capsules with a line of incrassate cells.