49 LACTARIAE OF THE UNITED STATES 
flesh rather firm, plants medium-sized to large; gills becoming | 
deeper in color with age and more or less pruinose; latex acrid, 
white, unchanging. 
Synopsis of species 
Pileus whitish. 
nate, sparsely covered with coarse, short tomentum. 18. Z. lanuginosa. 
Azonate, glabrous. L. subinsulisa,* | 
Pileus buff, papillate when wet, squamulose when dry. 17. Г. agglutinata, 
Pileus olivaceous-umber, blackening in drying. 19. Г. turpis. | 
Pileus grayish-green, zonate, not blackening. L. blennia.t [ 
17. Lactaria agglutinata sp. nov. 
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so when older, slimy-viscid when wet, with subrugose elevations 
or papillae showing through the gluten, appearing squamulose to 
, 6- 
minutely pubescent af а the pubescence becoming less notice- | 
able as the margin unfolds ; gills yellowish-buff (310. 2. г), some | 
forking near the stem, close, slightly decurrent, 2—4 mm. broad; | 
stem of the same color as the pileus or paler, sometimes spotted, 
equal or tapering downwards, viscid when wet, glabrous, firm as 
though solid, becoming spongy to hollow, 2.5-4 cm, long, 1-1.5 
ст. thick ; spores creamy-white in mass (zo. 4. 1, 2), subglobose, 
echinulate, 7-8 и; flesh white, odor somewhat like raw pumpkin ; 
latex white, unchanging, acrid. (FIGURE 5.) 
Нав.: Among dead leaves, in rather sandy soil, oak-chest- 
nut woods, frequently under the flowering dogwood. August 
and September. 
Пізтків.: “ Pink Beds," North Carolina, 1000 meters eleva- 
tion, Burlingham 59, 1907. 
DISTINGUISHING FIELD-MARKS : The medium size, buff color, 
and the papilliform and rugose elevations showing through thick, 
glistening gluten when wet, and the squamulose appearance of the 
pileus when dry. One peculiarity of the pileus is that if it becomes | 
wet again after having dried, the squamules swell up and the sur- | 
face appears papilliform and rugulose as at first. 
is species seems to be quite distinct. While resembling the 
Triviales in the very viscid character of the pileus, it also approaches 
eer Doubtful species, me 
T European species, the occurrence of which in the United States is doubtful. 
