Taxon: Oreoweisia weisioides

Plate 55. 1–9, Oreoweisia laxifolia. 1, habit (× 7). 2, 3, lower stem leaves (× 32). 4, 5, upper stem leaves (× 32). 6, basal marginal leaf cells (× 250). 7, apical leaf cells (× 250). 8, cross section of leaf middle region (× 250). 9, peristome (× 250). 10–15, Oreoweisia weisioides. 10, lower stem leaf (× 32). 11, 12, upper stem leaves (× 32). 13, lower marginal leaf cells (× 250). 14, median marginal leaf cells (× 250). 15, apical leaf cells (× 250). (1–9, drawn from C. Gao 1703, IFSBH; 10–15, drawn from Handel-Mazzetti 7414, H.)