59 LACTARIAE ОЕ THE UNITED STATES 
yellowish, and according to Peck, may be nearly straw-colored, 
but the prevailing color of the North Carolina and Alabama speci- 
mens was like that described in the European plant. 
25. LACTARIA AFFINIS Peck, Rep. N. Y. St. Cab. 23: 
116. 1873.* [As Lactarius] 
Lactarius platyphyllus Peck, Ann. Rep. N. Y. St. Cab. 23: 118. 
1873 
Pileus fleshy, firm, convex-umbilicate, then plane to depressed 
in the center, ochraceous-yellow, azonate, very viscid in wet 
weather, glabrous, 6-12 cm. or more broad, margin involute, then. | 
merely arched, even, naked; gills whitish or cream-colored, not — | 
changing with age, but often becoming pruinose in drying, many | 
forking near the stem, not very close, adnate to slightly decurrent, 
4-10 mm. broad; stem yellowish, paler than the pileus, often 
spotted, nearly equal, viscid when wet, stuffed, becoming hollow, 
.3-6 cm. long, 10-22 mm. thick ; flesh white, unchanging ; spores 
whitish, globose to broadly elliptical, echinulate, 8 x той; latex 
white, unchanging, acrid. 
Нав.: On the ground in mixed balsam and maple woods. 
August and September. (Pastures and copses, October, Peck.) 
DisrRiB.: New York, Peck; Vermont, Burlingham 60, 1906 ; 
Massachusetts, Morris ; Maine, White. 
DISTINGUISHING FIELD-MARKS: The dull ochraceous, zoneless 
green on the gills. The species is very closely related to Lactaria 
insulsa Fr., but its constantly duller color and the absence of zones, 
together with the broader and more distant gills, seem to separate 
it as a distinct species. 
Lactarius platyphyllus Professor Peck has decided is a large 
form of Lactaria affinis, and I have accordingly given it as a SI" | 
onym. 
DOUBTFUL SPECIES 
LACTARIA ZONARIA (Lamarck) Fr. Еркг. 336. 1838. - [As L4 
tarius.| — Schröt. in Cohn, Krypt.-Fl. Schles. 3: 538. 1889 
Agaricus zonarius Lamarck, Fl. Fr. 1: (108). 1778. | 
This species has been reported from Vermont by Frost, Rhode 
* Separate published in advance in [Ap] 1872. — и 
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