82 AGARICINI. 



Stem 3 in. long, 1 lin. fhick, slightly thickened above, straight, smooth, 

 whitish, cinereous. Pileus ^ in. broad, striate, hygrophanous, livid grey, be- 

 coming hoary. 



226. Agaricus (Omphalia) helvelloides. Bull. " Delicate 



Omphalia." 



Pileus obconic, umbonate, at length depressed, somewhat fun- 

 nel-shaped, remotely radiato-sulcate ; stem elongated; gills thick, 

 forked, decurrent, broad in front. — Bull. t. 601,/. 3. Berk. Outl. 

 p. 1^2. Ann. N.H.J no. ^24:. 



On the ground. Oct. 

 Far more graceful and delicate than any form of A. umhelliferus. 



227. Agaricus (Omphalia) fibula. Bull. '' Button Omphalia." 



Pileus membranaceous, turbinate, expanded, then somewhat 

 umbilicate, striate, becoming pale, dry, eren ; stem slender, nearly 

 orange colour, as well as the pileus ; gills strongly decurrent, dis- 

 tinct, paler. — F7\ Epicr.p. 127. Bull. t. 186, t. 550,/. 1. Sow. t. 

 45. Fl. Dan. t. 1071,/. 2. var. Eng. Fl. Y.p. 65. 



Amongst moss. Sept. — May. Common. [United States.] 



Pileus 1-6 lines broad, at first hemispherical ; margin inflexed, then plane, 

 more or less depressed.yellow or tawny, with a dusky centre, obscurely striated, 

 the whole minutely pilose ; gills yellowish or white, distinct, not ventricose, 

 decurrent ; stem l-l^in. high, not a line thick, slender, yellow or tawny, 

 with a violet-brown apex, the whole minutely pilose, like the pileus, and ob- 

 soletely fibrillose.— J/. /. B. Spores -00013 X -QOOOS in.— W. G S. 



[PI. II., Jig. 9, nat. size.'\ 



228. Agaricus (Omphalia) gracillim.us. Weiiim. " Delicate 



Omphalia." 



Snow-white; pileus membranaceous, hemispherical, sub-floccu- 

 lose, sulcate ; stem filiform, slender, floccose at the base ; gills 

 decurrent, thin, alternately sub-dimidiate. ^ — Weinm.p). 121, Fr. 

 Fp.p.l28. B.^'Br. Ann. N.H. {l^QQ), no. 1112. 



In marshy ground, on decaying stems of vegetables. Aug. 

 King's Cliffe. 



Pileus sometimes depressed, sometimes papillate, 2-3 lines broad ; stem 

 3-6 lines long. • 



229. Agaricus (Omphalia) belliae. Johnst. " Cup-like Omphalia." 



Pileus dry, membranaceous, cup-shaped, of a pale wood-colour ; 

 stem thin, fistulose, cartilaginous, pale above, brownish below, 

 adhering by a floccose base ; gills thick, paler than the pileus, 

 decurrent, interstices veiny. — Ann. Nat. Hist. ser. i, vol. vi., 1. 10, 

 /. 1. Berk. Outl. p. 134. 



