7. Distichophyllum mittenii Bosch & Sande Lac. 钝叶黄藓 dun-ye huang xian
Bryol. Jav. 2: 25. 1861. Type. Indonesia: Java, Amann s.n.
Plants medium-sized to large, mat-forming, laxly foliate, complanate. Stems prostrate or ascending, to 2 cm tall, 4 mm wide with leaves. Leaves slightly undulate to moderately crisped when dry, shiny, spathulate to obovate from a narrow leaf base, 3–4 mm × 2 mm, the apices broadly rounded with a tiny apiculus or mucro measuring less than 15 µm long; costae strong, ending well below apex; leaf margins entire, slightly undulate when wet, with a narrow border of 1–2 rows of thin-walled, linear cells throughout; leaf cells hexagonal, 15–22 µm wide, thin- to thick-walled, slightly collenchymatous, the submarginal cells in upper half of the leaf forming several rows, of much smaller cells, 9–15 µm; basal laminal cells rectangular, 67–90(–110) µm × 27–33 µm. Sporophytes lateral; setae to 10 mm long, scabrous; capsules ovoid, the exothecial cells strongly collenchymatous.