[Vor. 7 
204 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Bot. Jour. 25: 143. 1889.—Corticium ephebium Berk. & Curtis, 
Grevillea 1: 178. 1873; Sacc. Syll. Fung. 6: 618. 1888.— 
Peniophora ephebia (Berk. € Curtis) Massee, Linn. Soc. Bot. 
Jour. 25: 151. 1889.—Stereum neglectum Peck, N. Y. State 
Mus. Rept. 33: 22. 1880.— Peniophora neglecta Peck, N. Y. 
State Mus. Rept. 40: 76. 1887.—P. occidentalis Ellis & Ever- 
hart, Torr. Bot. Club Bul. 24: 277. 1897; Sacc. Syll. Fung. 
14: 224. 1900.—Lloydella occidentalis (Ell. & Ev.) v. Hohn. 
& Litsch. K. Akad. Wiss. Wien Sitzungsber. 116: 791. 1907. 
—Stereum purpurascene Lloyd, Myc. Writ. 4. Letter 53: 14. 
1914. 
Illustrations: Cooke, Grevillea 8: pl. 122. f. 4. 1879. 
Type: in Herb. Schweinitz, Curtis Herb., and Kew Herb. 
Fructifications coriaceous, often resupinate and effused, some- 
times reflexed, with upper surface strigose-hairy, concentrically 
sulcate, warm buff to pinkish buff, weathering 
gray, often laterally confluent, the margin 
entire; hymenium minutely bristly with the 
cystidia, even, drying pinkish buff to drab; in 
structure 400—600 y thick excluding the hairy 
covering, with the intermediate layer composed 
of longitudinally interwoven, thiek-walled hy- 
phae 443 y in diameter; cystidia large, in- 
crusted, thick-walled, often brownish at the 
base, conical, 100-150 X 12-20 u, emerging up to 
40-70 u; spores white in spore collection, even, 
10-12X 6 u, somewhat flattened on one side. 
Resupinate portions 1-10 X 1-23 em. ; reflexed 
margin 2-8 mm. broad. 
‘ig. 36 On logs and fallen limbs of Ulmus, Tilia, 
i c a Robinia, Morus, etc. Canada to Texas, west- 
spores, s, x 488, Ward to California, and in Mexico, Cuba, and 
Brazil. Common. June to February. 
Fully developed specimens of S. cinerascens may be recognized 
by their narrowly reflexed, strigose-hairy pileus and hymenium 
somewhat pruinose with the large, bristly, colorless cystidia. In 
sectional preparations, these cystidia are usually slightly colored 
at the base and more numerous and larger than in any other 
North American Stereum; the spores are very large also. 
