LACTARIAE ОЕ THE UNITED STATES 97 
since during the thirty years following the description no further 
collections have been reported, I hesitate to regard it as a valid 
species. But in order that the species may be established if it be 
valid, I append the following, arranged from Johnson's description ; 
ileus convex, papillate, at length expanded, depressed, then 
infundibuliform, brownish, or slate, pruinose, then reddish-orange, 
1.5-4 cm. broad; gills pale-orange, becoming brownish when old, 
dimidiate or entire, sinuate, crowded, decurrent, narrow ; stem 
orange, irregular, compressed, curved or straight, 1.5 cm. high, 
2-6 mm. thick ; latex white, slightly sweet. Тһе plants are gre- 
garious, or cespitose. Тһе pileus and the upper part of the stem 
are milky, but the gills are not. It was found growing among 
moss and grass, beneath poplar trees. July and August. 
LacrARIA CarckEoLus Berk. Lond. Jour. Bot. 6: 315,316. 1847. 
[As Lactarius | 297%) 
Pileus fleshy, thin, convex, with depressed center, brown-buff, 
dry, smooth, 7.5 cm. broad, margin repand, epidermis rimose ; gills 
white, more or less connected by transverse veins, forked near the 
edge, very distant, decurrent, up to 12 mm. broad; stem of the same 
color as the pileus, 12 mm. thick and long; flesh white; latex 
white, mild. 
Нав. and Loc. : On the ground in woods, Waynesville, Ohio, 
August 31 and September го, 1844, T. С. Lea. - 
_ Berkeley says : “An extremely curious species, remarkable for 
its few distant gills and the contrast between them and the brown- 
buff stem. The pilei in all the specimens found at present аге 
laterally confluent. It cannot.be confounded with any known 
species.”’ с | 
This species has not been reported since they were collected by 
Mr. Lea, and the confluent рйеі would indicate them to be an ab- 
normal growth, very possibly of Z. hygrophoroides, described by 
Berkeley & Curtis in 1859 from Sprague material. 
XVII. CAMPHORATAE 
; Pileus dry, glabrous, usually smooth and polished, but some- 
times becoming areolate or minutely roughened with pits, reddish- 
brown, fulvous, or tawny, rarely grayish, plants not large, pileus 
thin, flesh lax ; gills becoming darker with age and pruinose ; latex 
mild or tardily acrid, white, or thin and watery, usually unchanging. 
