Didymodon rigidulus var. ditrichoides
Phytologia 41: 20. 1978,.
Stem-leaves strongly appressed when dry, linear-lanceolate, base broadened, ovate to oblong; costa long-excurrent, sharp; proximal cells shortrectangular; distal laminal cells smooth, quadrate to shortrectangular, with quadrate to shortrectangular lumens, distal lamina 1-stratose; gemmae absent. Peristome not seen.
Habitat: Limestone outcrops, dry tundra
Elevation: moderate elevations (1200 m)
N.W.T., Asia (China), Atlantic Islands (Iceland)
Variety ditrichoides is a highly reduced, flagellate form of var. icmadophilus but with a distinctive appearance. It is disjunct from montane China (Chen P. C. 1941) to a single locality in the flora area (Northwest Territories, Mackenzie District, Nahanni Range, 61º43’N, 123º20’W, D. Vitt, 1977, BUF). The olive coloration and general appearance is similar to D. leskeoides but the plant is somewhat smaller and the alar auricles are lacking.
"um" is not declared as a valid unit of measurement for this property."um" is not declared as a valid unit of measurement for this property.