species of North American Fungi. 287 



Pileus 2-8 lines across, hemispherical, buiF; stems 2 inches 

 long, IJ line thick, white, confluent at the base and rooting; 

 gills whitish yellow, adnate, subdecurrent. 



Allied to A. proliferuSj from which it differs in its hemi- 

 spherical pileas, adnato-decurrent gills, &c. 



63. A. (Omphalia) xanthophylluSy B. & C. Pileo depresso 

 rubro-purpureo, floccoso, margine striato ; stipite flavo-albo 

 glabro subcompresso fistuloso deorsum attenuato subbulboso; 

 lamellis flavis decurrentibus. Curt. no. 2871. On the sides of 

 damp putrid logs, Aug., South Carolina, M. A. Curtis. 



Pileus 2-3 inches across, depressed, floccose, red-purple; 

 margin inflexed, somewhat striate ; stem 3-4 inches long, \-^ 

 inch thick, yellowish white, smooth, more or less compressed, 

 fistulose, tapering downwards, but bulbous at the base; gills 

 yellow, decurrent. 



A very fine species, allied to A, chrysophyllus. There are two 

 other new allied species, which, however, we cannot describe 

 for want of sufficient materials. 



63*. A. (Pleurotus) pulvinatus, P. Curt. no. 5396. On an 

 apple tree, Nov., New England, C, J. Sprague. 



Pileus 3|^ inches across, very excentric, pulvinate, wrinkled 

 and irregularly tessellated, of a dirty reddish-yellow white ; flesh 

 firm, white, 1 inch thick ; margin undulated, abruptly incurved ; 

 stem extremely short, thick, solid and fleshy; gills narrow, 

 yellowish white, decurrent or much attenuated, rather distant. 



As this appears to be the plant of Persoon, which is little 

 known, we have given a description drawn up from Sprague's 

 copious notes, which are accompanied by an excellent sketch. 

 Smell like that of fresh potatoes, or somewhat acid and fruity, 

 so strong as to scent the whole room. 



64. A, (Pleurotus) harbatulus, B. & C. Pileo postice adnato 

 hispidulo, margine inflexo glabro ; lamellis distantibus tenuibus, 

 interstitiis Isevibus. Curt. no. 6390. On dead sticks, Boston, 

 D. Murray. 



Somewhat imbricated. Pileus | an inch across, adnate behind, 

 convex in front, rough, except towards the inflexed margin, with 

 short downy hairs ; stem none, gills distant, thin ; edge some- 

 times slightly toothed ; interstices even, pulverulent in the young 

 plant. 



Allied to A. atrocaruleus. When dry, it is of a pale ochre, but 

 is probably pearly white when fresh. We have the same species 

 from Cuba, attaining an inch or more in diameter. 



65. A. (Pleurotus) semicaptus, B. & C. Pileo e resupinato 

 breviter reflexo irregulari albido pulverulento ; margine crenato ; 

 lamellis angustis distantibus integris concoloribus. Curt. no. 

 5362. On dead branches of birch, New England, C. J. Sprague. 



