LACTARIAE OF THE UNITED STATES 45 
glabrous, smooth or somewhat scrobiculate, or sometimes merely 
spotted, spots becoming nearly black in dried specimens, firm, 
stuffed, occasionally becoming hollow when old, usually 3-4 cm. 
long, 1.5-2.5 cm. thick ; flesh whitish, odor slight ; spores white, 
globose to subglobose, echinulate, 6.5-8 и; latex white, unchang- 
ing, acrid. Possibly edible. 
Has. : On the ground in mixed woods, often near fir or spruce 
trees. August and September. 
DISTRIB. : New York, Peck; Vermont, Jones, Burlingham ; 
Maine, White ; Connecticut, Hanmer ; Ohio, Beardslee ; it was also 
reported from North Carolina by Schweinitz. 
Плозт.: Cooke, Br. Fungi, p/. 987; Fl. Dan. pl. 1913; Fr. 
Sverig. Svamp. M. бо; Gillet, Champ. Fr. 2/. 758 [397] ; Hahn, 
Der Pilz-Sammler, ed. 2. f. 22; Harzer, Pilze, р/ бо; Krombh. 
Abbild. a. бо. f. 1-6; Lorinser, Essb. und Gift. Schwàm. Р/ д. 
f. 2; Lucand, Champ. Fr. ai 47; Phoebus, Deutschl. Krypt. 
Giftgewachse, AM. б. f. 1-3 ; Roumeg. Crypt. Illustr. f. 720. 
Exsic.: Karsten, Fungi Fennici 306; Sydow, Mycotheca 
Marchica 7009. 
DISTINGUISHING FIELD-MARKS : The yellowish-brown or oliva- 
ceous color of young plants and the blackish color of mature 
plants, the slimy condition of the whole mushroom in wet weather, 
the blackening of the gills with injury or in drying, and in many 
cases the grayish color due to the presence of the spores. The 
pileus may be covered with villose fibers which are closely stuck 
to the surface, and are not easily distinguishable, or it may be 
practically glabrous. The yellow down or villosity on the margin 
disappears in the mature plant, and is at no time conspicuous. 
I have compared the type specimens of Lactarius sordidus 
Peck with European specimens of Lactaria turpis and have not 
been able to detect any specific difference. Some of the Euro- 
pean forms show the stem to be slightly spotted, and some of the 
specimens of Г. sordidus have slightly scrobiculate spots on the 
stem. These spots become more prominent in drying. 
DOUBTFUL SPECIES 
LACTARIA SUBINSULSA Peck, Ann. Кер. М. Y. St. 
Mus. 43: 19. 1890. [As Lactarius] 
Pileus fleshy, firm, convex to nearly plane, umbilicate, whitish, 
azonate, viscid, glabrous, 5-10 cm. oad, margin involute and 
