Leucosporae 



** Stem lateral. 



P. farina'ceus Schum. farina, meal. From the scurf on the pileus. 

 Pileus cinnamon-umber, somewhat coriaceous, flexuous, cuticle separat- 

 ing into whitish-bluish-gray scurf. Stem short, lateral, of the same 

 color as the pileus. Gills determinately free, distinct, paler. 



The habit is that of P. stipticus. Stevenson. 



Pennsylvania, A. pleurotus f., Schweinitz; Ohio, Morgan. 



Var. albido-tomentosus. See Panus albido-tomentosus. 



P. al'bido-tomento'sus CKE. MASS. albidus, white; tomentum, 

 down. Pileus about % in. long, >z in. broad, horizontal, sometimes 

 imbricated, semi-circular, subcoriaceous, flexuous or regular, pale um- 

 ber, densely clothed with a short, whitish, velvety down, which seems 

 to be persistent, but thinner and shorter toward the shortly incurved 

 margin. Stem lateral, very short, or entirely absent, and attached by 

 a downy base. Gills radiating from the point of attachment; narrowed 

 behind, lanceolate, honey-colored, margin entire, rigid, scarcely crowded, 

 shorter ones intermixed. Spores subglobose, smooth, 5/x diameter. 



On trunks and branches. 



Pileus about i in. broad, often in imbricated tufts. It is doubtful 

 whether this is not a distinct species from the type described by Fries. 

 Cooke and Mas see. 



Panus albido-tomentosus is given by Cooke and Massee as a variety 

 of Panus farinaceus. The writer decides to give it place as a species. 



It has been sent to me by Mr. H. I. Miller, from Terre Haute, Ind., 

 by Dr. E. L. Gushing, Albion, N. Y., Miss Madeleine Le Moyne, 

 Washington, Pa. I have found it in West Virginia, New Jersey and 

 many parts of Pennsylvania. It is plentiful in patches upon branches 

 and boles of deciduous trees. Long, slow cooking makes it tender. 

 It makes a luscious gravy after thirty minutes' stewing. 





Stem absent, pileus resupinate or dimidiate. 



P. betuli'nus Pk. bctula, birch. Pileus thin, suborbicular or dimi- 

 diate, nearly plane, glabrous, prolonged behind into a short stem, grayish- 

 brown, darker or blackish toward the stem. Grills narrow, close, decur- 



235 



