Murrill: Agaricaceae of Tropical North America 87 



15. Lepiota subclypeolaria (Berk. & Curt.) Sacc. Sylloge 



Fung. 5: 67. 1887 

 Agaricus (Lepiota) subclypeolarius Berk. & Curt. Jour. Linn. 

 Soc. 10: 283. 1868. (Type from Cuba.) 



The rather poorly preserved types of this species, as well as 

 other specimens at Kew from tropical America, resemble L. cre- 

 tacea, but the spores are very different, being broadly ellipsoid, 

 smooth, hyaline, averaging 6 X 4-3 and not showing a large 

 nucleus as in that species. 



16. Lepiota hemisclerus (Berk. & Curt.) Sacc. Sylloge 



Fung. 5: 66. 1887 

 Agaricus (Lepiota) hemisclerus Berk. & Curt. Jour. Linn. Soc. 

 10: 283. 1868. (Type from Cuba.) 



The types at Kew, collected by Wright, are well preserved, 

 showing the small, rigid, conical warts on the pileus very distinctly. 

 The spores are said to be narrowly oblong, smooth, hyaline, 11 /x 

 long. These latter, with the warts on the pileus, strongly sug- 

 gest L. cretacea. 



17. Lepiota jamaicensis sp. nov. 



Pileus 10 cm. in diameter, convex to plane, with a prominent 

 hemispherical umbo, cespitose on dead wood, the entire sporophore 

 becoming reddish-brown when bruised or on drying ; surface dry, 

 white or very pale yellowish, adorned with brownish, floccose 

 scales 1 mm. broad, the remains of the cuticle ; umbo brown, 

 minutely scaly ; context thin, white ; lamellae free, white, becom- 

 ing discolored when the spores mature ; spores ovoid, rounded at 

 both ends, not apiculate, often uninucleate, very pale brown, 

 9 X 6-7 p; stipe enlarged at the base, tapering upward, 10 cm. or 

 more long, 1.7 cm. thick below, 0.7 cm. thick above, subglabrous, 

 slightly reddish-brown ; annulus large, superior, movable, reddish- 

 brown. 



Type collected on a hardwood stump in a cocoanut plantation 

 near Manchioneal, Jamaica, at an elevation of about 100 m., 

 December 17, 1908, W. A. Murrill 181. 



This plant closely resembles Lepiota americana Peck, a well- 

 known temperate species, both in shape and color, but grows in 

 dense clusters on dead wood, has decidedly browner spores, and 

 much smaller scales on the pileus, as well as a minutely scaly 



