124 THIRTY-EIGHTH REPORT ON THE STATE MUSEUM. 
but differ in their squamulose pileus. The specific name proves to be 
inappropriate, as the species has been found in a much lower region than 
that of its original discovery. 
» Lactarius helvus, /’. 
Pale-red Lactarius. 
Pileus fleshy, fragile, convex, then plane or depressed, subumbonate, 
dry, sulky or floccose-squamulose and rivulose, pale-testaceous, becoming 
paler; lamelle decurrent, thin, close, whitish-ochraceous; stem stuffed | 
or hollow, prwinose-pubescent; milk sparse, subacrid, white. 
Var. aguifluus. L. aquifluws Peck. Milk sparse, watery, taste 
mild or subacrid , spores .0003 to .00035 in.; odor weak in the fresh 
plant, more decided in the dried specimens, aromatic and agreeable. 
Pileus 2 to 6 in. broad, stem 3 to 6 in. long, 4 to 10 lines thick. 
Mossy ground in swamps and. marshes. Adirondack mountains, 
Sandlake and Karner. July and August. 
Our specimens agree so closely with the description of L. helvus, as 
given by Fries, and of which a translation is here given, that we have 
referred them to’ that species, distinguishing them merely as a variety 
on account of the watery milk. Fries regards such a milk as belonging 
to a degenerate or abnormal state of the species, and the result of too 
much moisture. But unless L. alpinus, shall prove to be a dwarf 
form of L. helvus, only this form of the species has been detected 
within our limits and indeed in this country. It scarcely seems 
probable that a species would occur constantly and repeatedly, in 
various widely separated localities, in a degenerate condition only. 
It would seem probable that occasionally, in a dry time or in a 
more dry locality, it would revert to its normal condition. But this has 
not yet been observed to happen in our plant, therefore we have pre- 
ferred to consider it a variety. The milk sometimes presents a slightly 
turbid appearance, less clear than water. The pileus becomes quite) 
fragile when old, and the thin margin is then spreading and sometimes 
flexuous. The color is a grayish-red or pale tawny-red. The stem is 
nearly equal, but in young plants it is often narrowed toward the apex. 
It is glabrous or pruinose and soon hollow, often a little paler than the 
pileus and slightly striate at the apex from the decurrent iamelle. The 
flesh is tinged with pink or a pale pinkish-gray. The plant is sometimes 
ceespitose. 
Lactarius vellerius, /’. 
Fleecy Lactarius. ' 
Agaricus Lnstert Sow. A. prperatus Poll. 
Pileus compact, at first convex and umbilicate, then expanded and 
centrally depressed or subinfundibuliform, the whole surface minutely 
velvety-tomentose, soft to the touch, white or whitish, the margin at first 
involute, then reflexed; lamella distant or swbhdistant, adnate or decur- 
rent, sometimes forked, whitish becoming yellowish or cream-colored ; 
stem firm, solid, equal or tapering downward, pruinose-pubescent, white; 
spores white, nearly smooth, .co03 to .00035 in.; milk white, taste acrid. 
Pileus 2 to 5 1n. broad, stem .5 to 2 in. long, 6 to 16 lines thick. 
Woods and open places. Common, July to September. 
