56 LACTARIAE OF THE UNITED STATES 
DISTINGUISHING FIELD-MARKS: Тһе red-brown azonate, very 
viscid pileus, acrid latex, and the medium-large size of the plant. 
29. Lactaria mucida sp. nov. 
Pileus fleshy, rather thin, convex-umbilicate, then plane, at 
length infundibuliform, warm-sepia (305. 2. 2, 3) in the center, 
putty-colored ( 377) to stone-colored ( 372) on the extreme margin, 
azonate, very viscid and shining when wet, glabrous, 3-9 cm. 
broad margin, even at first, slightly wavy and striate in the old 
FIGURE 7. Lactaria mucida Burl. No. ог, 1907. 
plant › gills white, scarcely changing color with age, staining blue- 
greenish-gray where the milk dries (249. Ё. т), sometimes forking 
near the stem, close, adnate to slightly decurrent, acute at the 
inner end, up to 7 mm. broad; stem of the same color as the 
pileus or paler, tapering upwards, slightly viscid when wet, glab- 
rous, sometimes with faint striae, stuffed, then hollow, 4-7 ©: 
long, 7-10 mm. thick at the top, 10-15 mm. а! the base; flesh 
white, odor none; spores white, broadly elliptical, echinulate, 
) th 
”_ 9 вы ит. я . . 
-Вих 8-9.5 и; latex white, drying blue- 
ills. ' 'reenish-gray on 
gills and the broken flesh, acrid. 
SS 
(FIGURE 7.) 4 
Нав.: Under hemlocks, іп wet weather. Late August an 
September. 
“I D 
