Murrill: Dark-spored Agarics 



209 



Habitat : In rich soil in pastures, fields, and wood borders. 

 Distribution : Eastern North America ; Bermuda and Mexico ; 

 also in Europe. 



Illustrations: Ann. Rep. N. Y. State Mus. 48: pi. 8; Cooke, 

 Brit. Fungi, pi. 523 (540) ; Fries, Sv. Aetl. Svamp. pi. 4; Gill. 

 Champ. Fr. pi. 129 (57/) ; Hard, Mushr. /. 252, 253; Hussey, 111. 

 Brit. Myc. 1 : pi. 76, 77; Lucand, Champ. Fr. pi. 162; Murrill, Ed. 

 Pois. Mushr. /. 27 ; Mycologia 6 : pi. 137, f. 2; Richon & Roze, 

 Atl. Champ, pi. 10, f. 1-5/ Ricken, Blatterp. Deutschl. pi. 62, f. 2; 

 Schaefr. Fung. Bavar. pi. 310, 311 ; Sow. Engl. Fungi, pi. 304. 



14. Agaricus sylvicola Sacc. Syll. Fung. 5 : 998. 1887 



Agaricus campestris sylvicola Vitt. Descr. Funghi Mang. 43. 1832.. 

 Agaricus bulbosus McClatchie, Proc. S. Cal. Acad. Sci. 1 : 382. 



1897. 



Agaricus abruptus Peck, Mem. N. Y. State Mus. 3 : 163. 1901 ;. 



not A. abruptus Fries, 1852. 

 Agaricus abruptibulbus Peck, Bull. N. Y. State Mus. 94 : 36. 1905. 



Pileus convex or expanded, 5-15 cm. broad, all parts of the 

 plant except the lamellae being white at first and becoming tinged 

 with straw-color in places with age or when bruised, or almost 

 entirely on drying; surface smooth, shining, glabrous or slightly 

 silky; context white, with agreeable odor and taste; lamellae thin, 

 crowded, rounded behind, free, pale-reddish-gray when young, be- 

 coming darker with age, and finally brown or blackish-brown with 

 a chestnut tint ; spores ellipsoid, purplish-brown, 5-7 x 3-4 /x ; stipe 

 long, equal, smooth, stuffed or hollow, bulbous, white, 8-20 cm. 

 long, 6-15 mm. thick; veil usually double, forming a thin, mem- 

 branous annulus decorated with floccose patches below. 



Type locality : Italy. 



Habitat : In rich soil or humus in open woods and wood bor- 

 ders. 



Distribution : Temperate North America and Europe. 



Illustrations : Atk. Stud. Am. Fungi, /. 19, 20; Cooke, Brit. 

 Fungi, pi. 529 (547) ; Gill. Champ. Fr. pi. 129 (581) ; Hard, 

 Mushr. /. 251, 254; Kauffm. Agar. Mich. pi. 47; Mycologia 6: 

 pi. 139; N. Marsh. Mushr. Book, pi. 18, f. 2, & pi. 20; Peck, Mem. 

 N. Y. State Mus. 3 : pi. 59, f. 1-14; Richon & Roze, Atl. Champ. 

 pi. 12, f. 1-4. 



