216 
Mycologia 
27. LENTODIELLUM Murrill, gen. nov. 
Persistent, fleshy-tough, densely cespitose; pileus smooth, 
deeply depressed ; lamellae decurrent : spores hyaline : veil scanty, 
evanescent : stipe central, hard, woody. 
Type species, Panns concavus Berk. 
I. Lentodiellum concavum (Berk.) Murrill 
Paniis concavus Berk. Ann. Mag. Nat. Hist. II. 9 : 194. 5 852. 
ILentinus cochleatus occidentalis Fries, Nova Acta Soc. Sci. 
Upsal. III. 1 : 227. 1855. 
Pileus tough but fleshy, infundibuliform, densely cespitose, 3-8 
cm. broad ; surface glabrous but not polished, chalky-white, not 
striate, margin strongly incurved, appendiculate : lamellae strongly 
decurrent, crowded, narrow, white becoming yellowish ; spores 
oblong-ellipsoid, pointed at one end, smooth, hyaline, 6-7 X 
2.5-3 /a; stipe exannulate, central or nearly so, cylindric, connate 
below, glabrous or subglabrous, white, solid, tough, 4-8 cm. long, 
3-4 mm. thick : veil thick, white, appendiculate. 
Type locality: Santo Domingo. 
Habitat : On dead logs and stumps. 
Distribution: Tropical America. 
W. A. Murrill. 
Dr. Arthur Harmount Graves, formerly assistant professor of 
botany in the Sheffield Scientific School of Yale University, re- 
turned early in July on the S. S. “ St. Paul” from Liverpool. He 
has been spending a year in research at the laboratory of Pro- 
fessor V. H. Blackman, professor of plant physiology and path- 
ology, Imperial Institute of Science and Technology, London. 
It may be recalled that Dr. Graves was one of a number of pro- 
fessors in the Sheffield Scientific School who were not reap- 
pointed in June, 1914, on account of a lack of funds. 
