Ann. Mo. Bot. Garden 57, 2: 205 (1971) [1970]. Basionym: Heppia zahlbruckneri Hasse, Bryologist 14: 100 (1911). Type locality: USA, California, on quartz.
Basionym: Heppia zahlbruckneri Hasse, Bryologist 14: 100 (1911).
Type locality: USA, California, on quartz.