Murrill: Agaricaceae of Tropical North America 83 



i. Coprinus cubensis Berk. & Curt. Jour. Linn. Soc. 10 : 293. 



1868 



Described from specimens collected by Wright on logs in Cuba. 

 The pileus is conic-ovoid, white, floccose-squamulose, 4 cm. 

 broad; lamellae free, crowded, purplish-brown; spores not black, 

 but rather of a purplish-brown tint, boat-shaped as in C.micaceus; 

 stipe larger below, glabrous, 2.5-4 cm. long, 3 mm. thick. 



2. Coprinus fimetarius (L.) Fries, Epicr. Myc. 245. 1838 

 Agaricus fimetarius L. Sp. PI. 1174. 1753. 



This species is abundant in temperate regions, especially on 

 manure heaps. 



Jalapa, Mexico, W. A. & Edna L. Murrill 34. These speci- 

 mens were collected on horse manure. The spores are broadly 

 ovoid or subglobose, apiculate, smooth, black, 12-13 X 7-8 /x. 



3. Coprinus armillaris Fries, Nova Acta Soc. Sci. Upsal. III. 



1: 28. 1851 



Described from specimens collected by Oersted in the island of 

 St. Thomas. Two very pretty colored drawings, which strongly 

 suggest Lepiota, are to be found at Copenhagen, but no specimens. 

 No reference is made by Fries to the spores. 



4. Coprinus jalapensis sp. nov. 



Pileus campanulate to broadly convex, not fully expanding, 

 thin, solitary, 2 cm. broad ; surface smooth, glabrous, striate, pale- 

 yellowish-white, somewhat darker on the disk ; margin entire, 

 concolorous, becoming ragged with age ; lamellae free, narrow, 

 crowded, gray to blackish-brown, whitish on the edges in young 

 stages and showing under a lens large white cystidia on the sides ; 

 spores ellipsoid, somewhat irregular in outline, smooth, purplish- 

 brown, 6-7 X 4-5 p ; stipe tapering upward, smooth, glabrous, 

 glistening-white, much enlarged at the base and attached to a 

 conspicuous mass of reddish-brown mycelium, 2 cm. long, 2 mm. 

 thick at the middle; annulus wanting. 



Type collected on dead wood in woods at Jalapa, Mexico, 

 1,500 m. elevation, December 12-20, 1909, W. A. & Edna L. 



