Harper—Species of Lentinus in Great Lakes Region. 379 
Pileus 1-2 inches broad, thin, tough, convex or centrally de¬ 
pressed, smooth, even or striatulate on the margin, whitish or yel¬ 
lowish, often with a yellow margin. Flesh white. Odor strong, 
pleasant. Lamellae denticulate, decurrent, wavy, sometimes 
anastomosing at the base, colored like the pileus. Stem short, cen¬ 
tral or eccentric to lateral, whitish, 1-2 lines long and thick. 
Spores 2-3 x 5—6/a. 
Peck reports the species as rare in New York State, having been 
collected only three times, always on willow. In our specimens 
there are often traces of reddish mycelium at the base of the stem, 
connecting it with the next species. 
Note. The form with the central stem and the pileus bordered with 
yellow appears to be the same as that called L. odorus Vill. or L. jugis Fr. 
in Europe. 
2. Plate XXII, C — F. Like the preceding, but with the stems 
wholly reddish. Lentinus haematopus Berk. Our plants vary 
from central- to lateral-stemmed. They are smaller, more regular, 
and neater than L. suavissimus. They have the same fragrant 
odor. 
Pileus 1 inch or less broad, thin, tough, plane or umbilicate or 
centrally depressed, smooth, ochraceous, more or less striate or 
ridged on the margin, often lobed. Flesh whitish. Odor pleas¬ 
ant. Lamellae decurrent, serrate, whitish or coneolorous with the 
pileus. Stem short, blood-red, with red or brown mycelium at the 
base, smooth or laccate, 1-2 lines long and thick. Spores 2-3 x 5-6/a. 
Murrill, 3-4x6-7/a. 
On sticks of willow, birch, etc. The species is illustrated by 
Boudier (PI. 82). 
Note. L. anisatus P. Henn. does not differ except that it is said to be 
sometimes subvillous, the stem pallid or reddish brown at the base, the 
spores 3 y 2 x 6-7/a. 
The Lentinus cochleatus Group 
The plants of this group grow on stumps, logs, and buried sticks, 
and even on ground rich in humus. They are most variable in 
size and shape, ranging from large, dense, irregular clusters with 
long, grooved, branching, concrescent stems, to single plants with 
regular, even, umbilicate pilei and central even stems in one direc- 
