Report of the State Botanist. 129 



Lactarius lignyotus, Fr. 



Sooty Lactarius. 



Pileus broadly convex plane or slightly depressed, dry, with or with- 

 out a small umbo, generally rugose-wrinkled, dark-brotvn, appearing 

 subpulverulent or as if suffused with a dingy pruinosiiy, the margin 

 sometimes crenately lobed . and distinctly plicate ; lamellae moderately 

 close or subdistant, adnate, white or yellowish, slowly changing to 

 pinkish-red or salmon color where wounded; stem equal or abruptly 

 narrowed at the apex, even, glabrous, stuffed, colored like the pileus, 

 sometimes plicate at the top ; spores globose, yelloioish, .00035 to 

 .00045 m *> m ilk white, taste mild or tardily and slightly acrid. 



Var. tenuipes. Pileus about 1 inch broad, stem slender, 2 to 3 in. 

 long and about two lines thick. 



Pileus 1 to 4 in. broad, stem 1 to 3 in. long, 2 to 6 lines thick. 



Wet or mossy ground in woods and swamps. Adirondack mountains 

 and Sandlake. July and August. Not rare in hilly and mountainous 

 districts. 



The sooty Lactarius is closely related to the preceding species with 

 which it was formly united by Fries as a variety, but from which it may 

 be distinguished by its larger size, darker color and generally rugose- 

 wrinkled pileus. Wounds of the flesh and lamellae slowly change color 

 as in that species, and, according to the description given by Fries, the 

 milk also undergoes a similar change, but I have not been able to verify 

 this in the American plant. According to the description of L. siibto- 

 mentosus, B. & R., the milk in that plant changes from white to 

 yellowish and the taste is acrid. In the Twenty-third Report our plant 

 was erroneousl" referred to that species. 



Lactarius Gerardii, Peck. 

 Gerard's Lactarius. 



Pileus broadly convex plane or slightly depressed, dry, generally 

 rugose-wrinkled, with or without a small umbo or papilla, dingy-broiun, 

 the thin spreading margin sometimes flexuous lobed or irregular ; 

 lamellae distant, adnate or decurrent, ivhite or whitish, the interspaces 

 generally uneven ; stem subequal, stuffed or hollow, colored like the 

 pileus; spores globose, ivhite, .00035 to • 000 45 m *; milk white, unchange- 

 able, taste mild. 



Pileus 1.5 to 4 in. broad, stem 1 to 2 in. long, 3 to 6 lines thick. 



Woods and open places. Poughkeepsie. W. B. Gerard. Greenbush, 

 Sandlake and Croghan. July to September. 



This Lactarius closely resembles the sooty Lactarius in color, but 

 differs from it in its more distant lamellae, white spores and constantly 

 mild taste. Wounds of the flesh and lamellae do not become pinkish- 

 red as in that plant. From the next species its darker color, hollow 

 stem and more globose rougher spores separate it. 



Lactarius hygrophoroides, B. & C. 



Hygrophorus-like Lactarius. Distant-gilled Lactarius. 

 Lactarius distans, Pk. 

 Pileus firm, convex or nearly plane, umbilicate or slightly depressed, 

 rarely infundibuliform, glabrous or sometimes with a minute velvety 

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