88 LACTARIAE ОЕ THE UNITED STATES 
Has.: On the ground in woods or in open groves. July to 
September. 
Півтків.: New York, Gerard, Peck, Earle, Burlingham, Peck 
& Earle (Long Island); Vermont, боо meters, Burlingham 28, | 
1906; Pennsylvania, Murrill; District of Columbia, Murrill; 
North Carolina, 1000 meters, Burlingham 23, 1907. 
ILLUSTR.: Ann. Rep. М. У. St. Mus. 26: pl. 50. f. 12-16; 
Memoir М. У. St. Mus. 3: ai 53. f. 12-16. 
DISTINGUISHING FIELD-MARKS: This species is closely related 
to Lactaria ligniota Fr., but can be distinguished from it by the 
white spores, the unchanging color of the broken flesh or gills, 
and the more distant gills. 
The type specimens were collected near Poughkeepsie, N. Y., 
by W. R. Gerard, in whose honor the mushroom is named. They 
are preserved in the herbarium of the N. Y. State Museum at 
Albany. 
56. Т.АСТАВТА SUBTOMENTOSA Berk. & Rav. Апп. and Mag. 
Nat. Hist. ПІ. 4: 11. 1859. [As Lactarius.]— Hennings, 
in Eng. & Prantl, Nat. Pflanzenfam. 1: 216. 1898. 
Pileus convex, firm, umber-brown, dry, subtomentose, 5-7.5 2 
cm. broad; gills white, distant, decurrent, broad; stem of the | 
same color as the pileus except at the white base, hollow, 2.5 cm. | 
long, 12 mm. thick ; latex white, becoming yellowish, acrid. a 
Нав.: On the ground in swamps. September. 7) 
DISTRIB. : South Carolina, Ravenel. 2 
DISTINGUISHING FIELD-MARKS: Тһе dry umber-brown, sub- ; 3 
tomentose pileus, and the acrid white latex, which becomes yellow | 
on exposure to the air. % 
I have not seen the type specimens of this species, which аге 
іп the herbarium of the Royal Botanic Gardens at Kew. But the 
species seems to be well defined and distinct from any other of our 
species, and it is probable that further collections in South Carolina - 
may discover more of these plants. 
57. LACTARIA SALMONEA Peck, Bull. Torrey Club 25: 369. 
1898. [As Lactarius] Y 
Pileus fleshy, rather firm, thin, convex, soon depressed in the 
center, otherwise nearly plane, white, becoming reddish where 
