6. Distichophyllum meizhiae B.-C. Tan & P.-J. Lin 贡山黄藓 gong-shan huang xian
Trop. Bryol. 10: 55. 1995. Type. China: Yunnan, Gong-shan Co., Du-long-jiang (river), alt. 1300 m, M.-Z. Wang 10040 (holotype PE).
Plants large, in lax tufts, flaccid. Stems tall, slender, sparsely branched, ascending, up to 4.5 cm long, 3 mm wide with leaves. Leaves erect-spreading to complanate, strongly dimorphic, vegetative leaves wrinkled when dry, broadly obovate to lingulate with a short narrow leaf base, 2.0–2.5 mm × 1.25–1.50 mm, the leaf apices broadly rounded with a short mucro measuring 40–50 µm long, the lower half of the lamina carinate; leaf margins entire below the apex, irregularly denticulate at the leaf mucro, wavy even when wet, with a narrow border consisting of 2–3 rows of thin to moderately thick-walled, linear cells; costae in vegetative leaves slender, ending well below the apex, often split distally into two branches, but becoming coarse and wide in gemmiferous leaves; laminal cells irregularly quadrate-polygonal, 22–33 µm wide, thin-walled, not collenchymatous, gradually becoming slightly smaller at the margins and apex, 13–22 µm wide, rectangular at leaf base, 56–101 µm × 18–27 µm; gemmiferous leaves broadly ovate, the upper portion of the lamina constricted into a rounded hood with numerous basally branched, filiform gemmae borne on the adaxial surface of the much expanded leaf costa. Autoicous? Perichaetial leaves small, about 0.3 mm long, ovate-lanceolate, acuminate, ecostate, with narrow border; archegonia numerous per bract, about the length of the perichaetial leaf. Sporophytes not seen.