Riccia sorocarpa Bisch.
Annotated by M. A. B. Hutten.

Idaho: Blaine County: Little Wood River, Snake River Watershed ¶Brass Cap Kipuka. Approximately 15 km SSW of Craters of the Moon National Monument and Preserve Headquarters. Just east of Lava lake. Elev. 1591 m.
UTM Zone 12N, 281687E, 4805141N
Datum: NAD 83.
Fully exposed mesic loamy soil ¶Sagebrush (Artemisia arbuscula) dominated steppe with scattered Big sage (A. tridentata). Soils heavy with much luss, resulting in run-off and stagnant water in depressions after winter snowmelt. 1.1 mm wide at widest; +/- 2 times wider than high; side walls steep; inner surface mostly not rounded¶Spores 70-95 m&x; very dark colored; ornamentation high but not reg. retculate. No cilia.¶Ventral scales not colored¶Dorsal side margin terminal cells often collapsed¶Some thickwalled cells (seven position)

M. A. B. Hutten 438, Apr 15, 2006
CRMO, Catalog: 4172