Murrill: Agaricaceae of Tropical North America 79 



broadly ellipsoid, smooth, indistinctly obliquely papillate at the 

 base, rather dark purplish-brown under the microscope, opaque, 

 uniguttulate, 4-4.5X2.5^; stipe cylindric, glabrous, white, 

 hollow, 2.5 cm. long, 4 mm. thick; annulus delicate, white, at- 

 tached very near the base of the stipe. 



Type collected in soil in a garden at Herradura, Cuba, August 

 31, 1907, F. S. Earle 575. Known only from the type locality. 

 This is a very small species, with reddish-brown pileus, short, 

 white stipe, and basal annulus. 



13. Agaricus Earlei sp. nov. 



Pileus rather thin, ovoid to convex and finally expanded, gre- 

 garious, 3-6 cm. broad; surface white, brownish on the disk, 

 decorated with small appressed or somewhat verrucose, brownish 

 scales ; margin whitish, not striate ; context white, unchanging, 

 without odor hut with pleasant taste; lamellae free, crowded, 

 rather broad, subventricose, pink to dark-coppery-ibrown ; spores 

 ellipsoid, indistinctly obliquely apiculate at the base, smooth, 

 opaque, purplish-brown under the microscope, dark-brown in 

 mass, uniguttulate, 5X3^; stipe cylindric, abruptly discoid- 

 bulbous at the base, pure-white, glaibrous, stuffed to hollow, 4-6 

 cm. long, 5-10 mm. thick; annulus membranous, persistent, be- 

 coming movable, white, distant 1 cm. from the apex of the stipe. 



Type collected in red clay soil in a banana field at Santiago de 

 las Vegas, Cuba, May 17, 1904, F. S. Earle jj. Also collected 

 by Earle in the same field, June 18 and 21, 1904. 



14. Agaricus xuchilensis sp. nov. 



Pileus convex to nearly plane, not umbonate, solitary, 4.5 cm. 

 broad; surface pale-chestnut, smooth, with innate, appressed, im- 

 bricate fibrils ; margin entire, concolorous ; lamellae free, suh- 

 crowded, rather narrow, pallid when young and fresh, becoming 

 blackish-brown ; spores oblong-ellipsoid, smooth, distinctly ob- 

 liquely papillate at the base, dark-purplish-brown to ^blackish 

 under the microscope, opaque, uniguttulate, 5X2.5//,; stipe 

 slightly tapering upward, not bulbous, much paler than the pileus 

 but similarly colored, smooth, 5 cm. long, 7 mm. thick; annulus 

 small, membranous, persistent, white, fixed a little above the 

 middle of the stipe. 



