LACTARIAE ОЕ THE UNITED STATES 55 
Нав.: In moist mixed woods. August and September. 
DISTRIB. : Vermont, 500 meters elevation, Burlingham 50, 
1906. 
Плот. : Omphalomyces circellatus acris Batt. Fung. Arim. pl. 
13. f. Р; Cooke, Br. Fungi, ai, 990 ; Gillet, Champ. Fr. ai 380 ; 
Sowerby, Eng. Fungi, ai 203. 
DISTINGUISHING FIELD-MARKS: This species may be distin- 
guished from Lactaria pyrogala and Lactaria flexuosa by its viscid 
pileus, and from Lactaria trivialis by its zonate pileus and white 
spores. Although zoned and streaked with umber at first, the 
pileus fades to an even rather pale gray when old Іп this state 
it can be distinguished from 2. ¢rivialis by the absence of yellowish 
color in the center of the pileus, the unchanging gills, and the 
white spores. 
28. LACTARIA HYSGINA (Fr.) Fr. Epicr. 337. 1838. [Аз Zac- 
tarius.] — Hennings, in Eng. & Prantl, Nat. Pflan- 
zenfam. 1'**; 216. 1898 
Agaricus hysginus Fr. Syst. Мус. 1: 67. 1821. 
Pileus firm, fleshy, convex, then umbilicate, becoming de- 
pressed in the center, reddish-incarnate or blood-red-brown (337), 
darker in the center, shading into paler and even incarnate (739. 
1. Г) at the margin, fading with age, azonate, smooth, very viscid, 
viscidity persisting for some time, glabrous, smooth, 5-8 cm. 
broad, margin involute then arched and the extreme edge inflexed ; 
gills white or creamy-white, becoming yellowish, often forking 
near the stem, close, adnate to slightly decurrent, 3-5 mm. broad ; 
stem paler than the pileus, or sometimes of the same color, spotted 
with red or reddish-brown, nearly equal, viscid when wet, glabrous, 
stuffed, becoming hollow; flesh white in the pileus, reddish next 
the cuticle, faintly yellowish in the stem ; spores whitish, subglob- 
ular to elliptical, echinulate, 6-8 p x 8-10; latex white, un- 
changing, acrid. 
Нав.: In moist woods, especially near spruce trees, often in 
grassy places. July to September. 
Півтків.: New York, Peck; Maine, White; Vermont, Bur- 
lingham 57, 1906. 
Плозт.; Britz. Lact. f. 15 (poor); Cooke, Br. Fungi, 2/. 989; 
Fries, Icon. pl. 160. f. 2; Agaricus vietus Krombh. Abbild. ai 
I4. 2 1$, 10. 
