REPORT OF THE STATE BOTANIST 1902 25 



Marasmius biformis n. sp. 



rileus thin, submembranaceous, campanulate or nearly plane, 

 generally umbilicate, glabrous, bay red or pale chestnut color and 

 striatulate when moist, paler or grayish and rugosely striate 

 when dry; lamellae rather close, adnate and joined together at 

 the stem, grayish tinged with creamy yellow; stem slender, 

 stuffed or minutely hollow, covered with a dense, downy pubes- 

 cence, which is brown when moist, cinereous when dry, sometimes 

 slightly tawny toward the base. 



Pileus 4-8 lines broad ; stem about 1 inch long, .5 of a line thick. 

 Gregarious in groves of coniferous trees. Bandlake, Rensselaer 

 CO. August. 



The species is closely related to M. s u b n u d u s , but the plant 

 is much smaller, the pileus is usually umbilicate and the stem 

 not inserted. The mycelium binds together a mass of dirt and 

 needles which adhere to the base of the stem when the plant is 

 taken from the ground. In some groups nearly all the pile! are 

 campanulate, in others they are nearly plane. This feature is 

 suggestive of the specific name. 



Marasmius tomentosipes Pk. 

 Much decayed, mossy, prostrate trunks of trees. North Elba. 

 September. Similar in color to Omphalia campanella, 

 but differing in its more scattered mode of growth, its longer 

 straight stem sprinkled with tawny mealy particles or covered 

 with tawny tomentum and in its less distinctly umbilicate pileus. 

 In our specimens the stem is flocculent mealy at the top, has 

 scattered flocculent particles below and a copious tomentum at 

 the base, all of a tawny color. The specimens revive under the 

 influence of moisture as in the genus Marasmius, and for this 

 reason they have been referred to this genus. The species was 

 founded on specimens collected in Idaho. 



Marasmius leptopus n. sp. 

 Pileus thin, broadly convex or nearly plane, glabrous, obscurely 

 and rugosely striate on the margin, reddish brown ; lamellae thin, 

 narrow, close, adnate, white; stem slender, glabrous, hollow, 

 inserted, whitish or pallid; spores oblong or narrowly elliptic, 

 .0003-.00035 of an inch long, .00012-.00015 broad. 



