Taxon: Ptychomitrium sinense

Plate 143. Ptychomitrium sinense. 1, dry habit (× 12). 2, wet habit (× 12). 3, capsule with calyptra (× 30). 4, capsule (× 30). 5, perigonium (× 30). 6, peristome teeth (× 335). 7, 8, leaves (× 30). 9, cross section of costa (× 335). 10, apical leaf cells (× 335). 11, median leaf cells (× 335). 12, basal leaf cells (× 335). 13, spores (× 335). (Drawn from X.-G. Kang 1977, IFSBH.)