288 Rev. M. J. Berkeley and Rev. M. A. Curtis on new 



Gregarious; pileus at first resupinate, then refiexed, about 



^ inch across, irregular, narrow, dirty white, pulverulent, with 



a little thin film extending on the matrix from the resupinate 



portion ; margin waved or crenate ; gills narrow, entire, distant, 



of the same colour as the pileus. Spores cymbiform, white, 



' inch Ion *. 



4000 111UU lu "o- . . • n i i ■. 



A very curious and distinct species. Occasionally the white 

 film extends over the whole matrix. 



66. A. (Pleurotus) Blakeii, B. & C. Pileo reniformi, conchato, 

 rufo, glabro, postice puberulo ; lamellis latis vcntricosis tenuibus 

 subconcoloribus, interstitiis venosis. Curt. no. 6289. On dead 

 fir, Maine, Rev. J. Blake. 



Pileus \ an inch across, reniform, conchate, cpiite smooth, of 

 a deep red brown, obscurely downy behind ; margin incurved ; 

 gills paler than the pileus, broad, ventricose, thin, distant ; in- 

 terstices veiny ; stem none. 



67. A. (Pleurotus) candidissimus, B. & C. Niveus; pileo reni- 

 formi, 1. dimidiato, glabro, villo parco affixo, margine sulcato ; 

 lamellis distantibus, interstitiis hevibus. Curt. no. 6191. Maine, 

 C. J. Sprague. 



Pileus ^ inch across, reniform or dimidiate, stemless, pure 

 white, opake, smooth, like kid-leather; margin sulcate; gills 

 white, slightly ventricose, attenuated behind, moderately broad, 

 distant; interstices even. 



A very beautiful and delicate species. 



68. A. (Pleurotus) racodium, B. & C. Pileo griseo, conchato, 

 atro-strigoso ; lamellis griseis. Curt. no. 4058. On rotten 

 wood, Pennsylvania, Dr. Michener. 



Pileus 5 inch across, conchiform, grey, clothed behind with 

 dense black bristle-like hairs ; margin striate ; gills of the same 

 colour as the pileus, moderately distant. 



Closely allied to A. applicatus, but distinguished by the dense 

 black hairs, which make it look, when dry, like a Sphceria. 



69. A. (Volvaria) emendatior, B. & C. Pileo piano umbonato 

 glabro ; stipite sursum deorsumque incrassato, volva marginata ; 

 lamellis remotis. Curt. nos. 5074, 2546. On rich garden soil, 

 New England, C. J. Sprague; Lower Carolina, M. A. Curtis. 



Pileus 3 inches across, flat, with an obtuse umbo, smooth, 

 white ; margin thin, striate ; stem 3 inches high, ^ inch thick, 

 slightly incrassated above and below, very slightly arachnoideo- 

 fibrous, solid ; volva forming merely a short rim ; gills ventricose, 

 remote, free and rounded behind, white, at length flesh-coloured, 

 extending in front beyond the rugged margin of the pileus, as 

 in Montagnites. Spores broadly cymbiform, 20V0 i ncn l° n g'- 

 Smell disagreeable, but not strong. In the button state the 

 pileus is areolate. 



