裂齒苔，台灣產苔類植物新紀錄屬

Dichodontium pellucisum (Hedw.) Schimp. (Dicranaceae), a Species New to Moss Flora of Taiwan

裂齒苔（Dichodontium pellucidum），曲尾苔科的一種，為台灣產苔類植物新紀錄種，本屬的特徵為具有紡錘形芽胞，具乳突狀的葉細胞以及在中肋有分化的厚璧層及副細胞，與近緣的石毛苔屬相較，本屬具有分裂的蒴齒片，與另一近緣屬狗牙苔之差異則在不具較闊葉基的披針形葉。

Dichodontium pellucidum (Hedw.) Schimp., a species of Dicranaceae, is reported as a new record to the moss flora of Taiwan. Dichodontium Schimp. is characterized by fusiform gemmae, mammillose laminal cells, and differentiated guide cells and stereids in costa. This genus is distinguished from the related genus Oreoweisia (B.S.G.) De Not. by the divided peristomes, and is distinct from another allied genus Cynodontium Schimp. by its lanceolate leaves.