308 NORTH AMERICAN FLORA [VoLUME 9 
breadth and distance, dull-yellowish: spores ovoid, smooth, hyaline, usually 1-guttulate, 
7 X 5 yu: stipe short, curved, equal, white, 5 mm. long, 2 mm. thick. 
Type collected on fallen dead branches at Orizaba, Mexico, January 10-14, 1910, W. A. & 
Edna L. Murrill 836 (herb. N. Y. Bot. Gard.). : 
DIsTRIBUTION: Known only from the type locality. 
5. Micromphale subexcavatum Murrill. 
Agaricus (Pleurotus) excavatus Berk. & Curt. Jour. Linn. Soc. 10: 287. 1868. Not A. excavatus 
Leysser. 1783. 
Pleurotus excavatus Sacc. Sy!l. Fung. 5: 353. 1887. 
Pileus eccentric, depressed, 18 mm. broad; surface at first subzonate, pulverulent: lamellae 
adnate-decurrent, much crowded, narrow: spores hyaline: stipe larger above and below, 
mycelioid at the base, 12 mm. long, 2 mm. thick. 
Type Locauity: Cuba. 
Hasitrat: On rotten wood. 
DISTRIBUTION: Known only from the type locality. 
6. Micromphale badium Murrill, sp. nov. 
Pileus thick, fleshy, subhemispheric, 2 cm. broad and 1 em. thick; surface smooth, glabrous, 
bay; margin undulate, incurved, grayish-pruinose: lamellae adnate, broad, not crowded, dull- 
watery-white with a grayish tint: spores pip-shaped, smooth, hyaline, about 4 u long: stipe 
very eccentric, short, thick, abruptly contracted at the apex, smooth, glabrous, grayish- 
isabelline, 6 mm. long, 5 mm. thick. 
Type collected on dead wood at Morce’s Gap, Jamaica, December 29, 30, January 2, 1908-9, 
W.A. & Edna L. Murrill 733 (herb. N. Y. Bot. Gard.). 
DrstRIBUTION: Known only from the type locality. 
7. Micromphale brunnescens Earle, Inf. An. Estag. Centr. Agron. 
Cuba 1: 235. 1906. 
Pileus thin, dimidiate, broadly spatulate, expanded, solitary, 3-4 cm. broad; surface 
glabrous but slightly silky-whitened at the base, pale-fuscous, margin not striate: lamellae 
adnate, scarcely decurrent, densely crowded, narrow, erose, often splitting, subconcolorous 
but paler: spores globose, 3-4»: stipe lateral or nearly so, cylindric, silky-whitened, solid, 
about 1 em. long and 3 mm. thick. 
Type Locality: Guanajay, Cuba. 
Haxsirat: On dead wood among moss. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Inf. An. Esta¢g. Centr. Agron. Cuba 1: #l. 32, f. 2. 
8. Micromphale fuscifrons (Berk. & Curt.) Murrill. 
Agaricus (Pleurotus) fuscifrons Berk. & Curt. Jour. Linn. Soc. 10: 287. 1868. 
Pleurotus fuscifrons Saac. Syll. Fung. 5: 353. 1887. 
Pileus thin, soft, plane, subcespitose or solitary, 1.5~2.5 cm. broad; surface glabrous, 
fuscous to blackish: lamellae adnate-decurrent, broad, subfuscous: stipe lateral or sublateral, 
6-8 mm. long. 
TYPE LOCALITY: Cuba. 
Hasitat: On dead wood. 
DISTRIBUTION: Cuba. 
DoUBTFUL SPECIES 
Lentinus pallidus Berk. & Curt. Ann. Mag. Nat. Hist. II. 12: 427. 1853. Described 
from South Carolina, and represented at Kew by one poor specimen, which resembles both 
Lentodium tigrinum and Micromphale abscondens, or may be Pleurotus corticatus with the ring 
gone. 
Pleurotus circinatus (Fries) Quél. Ench. Fung. 147. 1886. (Agaricus circinatus Fries, 
Epicr. Myce. 132. 1838.) Reported from California by Harkness. ; 
Pleurotus craspedius (Fries) Sacc. Syll. Fung. 5: 343. 1887. (Agaricus craspedius Fries, 
Epicr. Myc. 131. 1838.) Reported from Ohio by Morgan and from Minnesota by Johnson. 
It occurs in Europe on pine trunks. 
