80 



Mycologia 



Type collected in a rich field at the edge of a forest at Xuchiles, 

 near Cordoba, Mexico, January 17, 1910, W. A. & Edna L. 

 Murrill 1156. Known only from the type locality. This species 

 may be readily recognized by its very dark pileus and pale lamellae. 



15. Agaricus ochraceidiscus sp. nov. 



Pileus fleshy, firm, convex to expanded, subcespitose, 6-8 cm. 

 broad ; surface dry, white, with ochraceous scales, ochraceous on 

 the disk ; context white, unchanging, with sweetish taste ; lamellae 

 free, crowded, moderately broad, ventricose, dark-grayish-lilac 

 with reddish stains; spores quite broadly ellipsoid, smooth, 

 opaque, decidedly purplish-brown under the microscope, rounded 

 at both ends, 4-5-5X3-3-5/*; stipe tapering upward, white, 

 floccose, solid but somewhat spongy within, 5-7 cm. long, 6-12 

 mm. thick; annulus white, sometimes fugacious, distant 1 cm. 

 from the apex of the stipe. 



Type collected in red clay on a ditch bank at Santiago de las 

 Vegas, Cuba, September 28, 1904, F. S. Earle 265. Also col- 

 lected in the same vicinity in the autumn of 1904 and 1905, F. S. 

 Earle 297, 350, 379. 



16. Agaricus Hornei sp. nov. 



Pileus convex, firm, solitary, reaching 10 cm. broad; surface 

 dry, whitish, with small, brownish, imbricate, fibrillose scales ; 

 margin even, somewhat appendiculate ; context white, unchang- 

 ing, without odor and without characteristic taste ; lamellae free, 

 crowded, of medium breadth, pink to reddish-brown, not becom- 

 ing black; spores broadly ellipsoid, smooth, opaque, obliquely 

 apiculate at the base, decidedly purplish-brown, uniguttulate. 

 5.5X4/*; stipe deeply buried but not radicate, irregularly en- 

 larged and swollen below, silky-shining and slightly floccose 

 above, brownish-white, spongy and hollow within, 15 cm. long, 

 2-3 cm. thick; annulus thick, membranous, white, persistent, 

 distant 1 cm. from the apex of the stipe. 



Type collected in soil in a field in rather dry weather at Her- 

 radura, Cuba, December 25, 1907, F. S. Earle and W . T. Home 

 579. Known only from the type locality. 



