Cryptogamie, Bryologie
33 (1) - Pages 39-63Twelve genera, 37 species, and three varieties of Ptychanthoideae are known in Thailand, including four new records, Archilejeunea kiushiana (Horik.) Verd., Lopholejeunea soae R.-L. Zhu & Gradst., >EM>Schiffneriolejeunea polycarpa (Nees) Gradst., and Schiffneriolejeunea tumida var. haskarliana (Gottsche) Gradst. et Terken. Thysananthus aculeatus Herzog is excluded from Thailand. A key, brief descriptions and selected illustrations for the species of Ptychanthoideae of Thailand are provided.