Comastoma tenellum (Rottb.) Toyok. in Bot. Mag. (Tokyo) 74: 198. 1961 Comastoma tenellum (Rottb.) Toyok. in Bot. Mag. (Tokyo) 74: 198. 1961Taxon for this nameComastoma tenellum (Rottb.) Toyok. in Bot. Mag. 24: 198. 1961Comastoma tenellum (Rottb.) Toyok. in Bot. Mag. (Tokyo) 74: 198. 1961