MYCOLOGIA 



Vol. X July, 1918 



ILLUSTRATIONS OF FU 



William A. Murrill 



The smaller gill-fungi are usually difficult to determine because 

 the species are numerous and lack conspicuous distinctive char- 

 acters. Those shown on the accompanying plate, which is the 

 work of Miss Eaton, represent Marasmius, Prunulus, Gymnopus, 

 and other genera. None of them are large enough to be of eco- 

 nomic importance. Specimens of Marasmius have been deter- 

 mined by Professor L. H. Pennington. 



Prunulus viscidipes Murrill, sp. nov. 

 Mycena viscidipes Murrill 

 Viscid-stemmed Prunulus 



Plate 8. Figure 1. X 1 



Pileus hemispheric to expanded, becoming somewhat depressed 

 at the center, gregarious to subcespitose, 1-2 cm. broad ; surface 

 hygrophanous but not viscid, glabrous, distinctly striate, fulig- 

 inous on the disk, pale-avellaneous to almost white toward the 

 entire, straight margin ; context exceedingly thin, pallid ; lamellae 

 arcuate-subdecurrent behind, ventricose in front, pallid, entire ; 

 spores ellipsoid, smooth, hyaline, 6-7 X 4^ ; stipe slightly taper- 

 ing upward, dull-gray, glabrous above, tomentose below, very vis- 

 cid, 4-5 cm. long, 1.5-2.5 mm. thick. 



Type collected by W. A. Murrill among leaves and sticks on 

 the ground in deciduous woods in the New York Botanical Gar- 

 den, July 30, 191 5. Known only from the type locality. This is 

 a dainty little plant with brownish, striate pileus and viscid stipe. 

 It seems to have a preference for oak leaves. 



[Mycologia for May (10: 107-176) was issued June 7, 1918.] 



177 



