2b. Distichophyllum cirratum var. elmeri (Broth.) P.-J. Lin & B. C. Tan 卷叶黄藓南亚变种 juan-ye huang xian nan-ya bian-zhong
Harvard pap. Bot. 7: 36. 1995. Distichophyllum nigricaule Bosch & Sande Lac. var. elmeri (Broth.) Tan & Robinson, Smithsonian Contr. Bot. 75: 22. 1990. Distichophyllum elmeri Broth., Leafl. Philipp. Bot. 2: 656. 1909. Type. The Philippines: Luzon, Baguio, Elmer 10453 (holotype H).
Plants are similar to var. cirratum in habit, size, and leaf shape. The submarginal leaf cells [14–18(–23) µm wide] of the present variety are smaller than the paracostal cells [23–36(–52) µm wide]. In addition, there are up to 8 rows of small, submarginal leaf cells in var. elmeri. The leaf borders of var. elmeri are as broad as in var. cirratum, consisting of 3–4 rows of linear cells. The leaf apices of var. elmeri are muticous or shortly mucronate (5–10 µm long) and the costae never reach the leaf apices. Setae are 10–12 mm long, yellowish brown, smooth, becoming coarsely wrinkled near the bases of capsules.