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



no. 3202. From the roots of grass in sandy soil, Aug., South 

 Carolina. 



Gregarious, subesespitose. Pileus A-1 inch across, plane, 

 umbilicate, smooth, dull white with a faint brownish tinge, 

 margin slightly striate. Stem 1 inch or more high, 1 line thick, 

 of the same colour as the pileus, solid, somewhat twisted, com- 

 pressed and enlarged above, covered with a white meal which is 

 easily rubbed off, downy at the base. Gills crowded, adnate, very 

 narrow, whitish. 



Allied to A. atratus, like which it is intermediate between 

 Omphalia and CoUybia. 



8. A. (Mycena) iocephalus, n. s. Pileo e convexo piano car- 

 noso-membrauaceo sulcato violaceo; stipite pallido farinaceo 

 basi villoso ; lamellis distantibus adnatis angustis undulatis, 

 pileo pallidioribus venoso convexis. Curt. no. 2549. Amongst 

 rotten leaves in dried swamps, Aug., South Carolina. 



Odour strong and offensive. Pileus i-1 1 inch broad, convex, 

 then plane, sulcato-striate, carnoso-membranaceous, dry, pale 

 violet-purple. Stem l|-2 inches high, 1-2 lines thick, fistulose, 

 pale, farinaceous; base incrassated, villous. Gills distant, at- 

 tached, unequal, sometimes forked, rather narrow, somewhat 

 undulated, interstices venose. Spores white. 



A very elegant species, distinguished from all the strong- 

 scented Mycense by its farinaceous stem and general appearance. 



9. A. (Omphalia) cenienarius, n. s. Valde c^espitosus; pileo 

 conico convexo umbonato fragili sulcato; stipitibus fistulosis 

 deorsum tomentoso-connatis, lamellis longe decurrentibus. Curt, 

 no. 2888. On rotten logs, October, South Carohna, H. W. 

 Ravenel, Esq. 



Growing in dense clusters. Pileus ^ an inch across, fragile, 

 very thin, conical, convex, umbonate, whitish ; margin coarsely 

 striate. Stems very slender, 3-4 inches or more high, whitish 

 hyaline, annularly mottled, fistulose, the cavity expanding above 

 the gills, tapering and darker at the base, where they adhere by 

 short white down. Gills white, arched, strongly decurrent. 



This has just the habit of A. tintinnabulum and A. viyriadeus, 

 but has the characters of Omphalia. 



10. Agaricus (^levixoivii) Micheneri,n. B. Csespitosus ; pileo 

 infundibuliformi tenui luteo-albo; stipite solido gracili albo; 

 lamellis distantibus angustis decurrentibus compositis pallide 

 luteis. Curt. no. 3480. On decayed wood, Pennsylvania, Dr. 

 Michencr. 



Csespitose. Pileus | of an inch across, infundibuliform, thin, 

 yellowish white. Stem 2 inches high, about a line thick, white. 

 Gills distant, compound, narrow, decurrent, pale yellow. 



Allied to A. lignatilis. 



