Mycological Flora of the Rockies 109 



ordinary wood-inhabiting species. On drying, the margins of 

 the apothecia become incurved and remain whitish; elsewhere 

 the apothecia become blackish-cinereous. 



MOLLISIACEAE 



MoLLisiA ciNEREA (Batsch.) Karst. Common, Tolland. On 

 old logs, etc., of Salix, etc. 



MoLLisiA MELALEUCA (Fr.) Sacc. Rare, Tolland. On de- 

 cayed wood of Alnus tenuifolia. 



MoLLisiA TRABiNCOLA Rchm. Rare, Tolland. 



This curious species dries up and is hard to find unless the 

 substratum is moistened. It gives the appearance when wet of 

 belonging to the Stictidaceae, and on drying takes on an elon- 

 gated form at times. Spores 6-8 x 1.5-3 jjl. Iodine does not 

 affect the asci. 



Cenangiaceae 



Cenangium abietis (Pers.) Rehm. Infrequently seen, Tol- 

 land. On dead twigs of Pinus contorta. 



Cenangium alpinum E. & E. Common, Tolland and Leal. 



On dead branches of Picea Engelmanni and Pinus contorta^ 

 9000-ft. elevation. Although no authentic material was ex- 

 amined, the plant is unique by the fimbriate margin of the apo- 

 thecia, which are folded lengthwise and measure 1-2.5 mm. 

 along the incurved fold. The fimbriate condition is due to dark 

 yellow-brown hairs about 100-120 jjl long, 4-5 ^ thick, septate, 

 hyaline toward apex and minutely granular. The apothecia 

 occur singly or in groups of few individuals. The asci measure 

 45-55 X 5-6 IX. The paraphyses are filiform and equal. The 

 spores in the specimens examined averaged slightly different 

 from those given by Ellis, being 8-12 x 2.5-4 ix in size. 



GoDRONiA Betheli Seaver. Common, Tolland. On dead 

 branches of Alnus tenuifolia. 



Stictidaceae 



OcELLARiA AUREA Tul. Frequent, Tolland. On dead 

 branches of Salix sp. 



