1. Pseudotrismegistia undulata (Broth. & Yas.) Akiyama & Tsubota 波叶拟金枝藓 bo ye ni jin zhi xian
Acta Phytotax. Geobot. 52: 86. 2002. Trismegistia undulata Broth. & Yas., Rev. Bryol. 53: 4. 1926. Type: China. Taiwan, Mt. Dabu, Matsuda s.n.
Mastopoma perundulatum (Dix.) Horik. & Ando, Nat. & Life Southe. Asia 3: 34. 1964. Trismegistia perundulata Dix., Ann. Bryol. 9: 69. 1937.
Plants large, in interwoven patches. Main stems prostrate, up to 5 cm long, irregularly branched; leafy branches short or elongate, up to 3 cm long, ca. 2 mm wide. Leaves erect-spreading, slightly curved, oblong-lanceolate to ligulate, distinctly narrowed in the middle, strongly undulate, widely acute at apex; margins serrulate below, sharply serrate above; leaf cells fusiform to oblong-elongate, 45–50(–80) mm × 4–7 mm, gradually becoming shorter and wider upward and toward margins; alar cells numerous, inflated, hyaline or colored, thin-walled, arranged in several rows. Sporophytes not seen.