28 



Mycologia 



papillate, 5-15 mm. broad ; surface glabrous, hygrophanous, watery- 

 cinnamon or subochraceous and striatulate when moist, becoming 

 paler when dry, often fading to yellowish or buff ; margin usually 

 striate; lamellae thin, broad, distant, adnate, ventricose, white or 

 whitish, becoming ochraceous-yellow, often whitish-floccose on the 

 edges; spores ovoid, pointed, smooth, uniguttulate, 8-12 x 5-7 fi; 

 cystidia flask-shaped, 40-45^ long, 8-10 \x thick at the base ; stipe 

 slender, flexuous, hollow, smooth or slightly silky-fibrillose, downy 

 or pruinose at the apex, with a white mycelioid tomentum at the 

 base, whitish or pallid, varying to fuliginous, 2.5-5 cm - l° n g> about 

 1 mm. thick; veil slight, evanescent. 



A dainty little plant occurring commonly among mosses or 

 grasses in shaded places throughout Europe and temperate North 

 America and occasionally found on high mountains in tropical 

 America. The specimens figured were collected in the New York 

 Botanical Garden in August, 191 1. 



Gymnopilus flavidellus Murrill 



Yellowish Gymnopilus 



Plate 8. X i* 



Pileus convex to plane or slightly depressed, gregarious or sub- 

 cespitose, 3-5 cm. broad ; surface dry or moist, smooth, glabrous, 

 not striate, melleous to ochraceous or luteous at the center ; margin 

 entire, cream-colored; context yellowish, with mawkish, slightly 

 bitter taste; lamellae adnate or sinuate with a decurrent tooth, 

 rather crowded and narrow, pale-yellow to ferruginous ; spores 

 ovoid, minutely echinulate, ferruginous, 8-9 x 5-6 /x ; stipe subequal, 

 solid to hollow, pale-yellow to yellowish-brown, pruinose at the 

 apex, whitish-mycelioid at the base, 3-5 cm. long, 3-5 mm. thick ; 

 veil arachnoid, fugacious. 



Described and figured from specimens collected on a chestnut 

 stump in woods in the New York Botanical Garden, September 9, 

 191 1. It occurs on dead wood of various deciduous and coniferous 

 trees throughout most of temperate North America and has been 

 found also in Bermuda. Species of this genus have not been suf- 

 ficiently tested for edibility and should be avoided for the present. 

 Some of them are known to be poisonous. 



