26 Journal of the Mitchell Society [June 



viscid and shining when wet, glabrous, 3-9 cm. broad, margin even at 

 first, slightly wavy and striate in old plants; gills white, scarcely 

 changing color with age, staining blue-greenish-gray where the milk 

 dries (249 t. 1), 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, glabrous, sometimes with faint striae, stuffed, then hollow, 

 4-7 cm. long, 7-10 mm. thick at the top, 10-15 mm. at the base; flesh 

 white, odor none ; spores white, broadly elliptical, echinulate, 7-8/a x 

 8-9. Si".; latex white, drying blue-greenish-gray on the gills and the 

 broken flesh, acrid. 



"Hab. : Under hemlocks, in wet weather. Late August and Sep- 

 tember. 



"Distinguishing Field-Marks : This species may be easily re- 

 cognized by the contrasting dark-sepia color of the center, the whitish 

 color of the margin of the pileus, and its slimy shining appearance, as 

 well as by the blue-greenish-gray color of the dried latex. It closely 

 resembles Lactaria cinerea Pk. in size and texture, but differs in the 

 habitat, in the color of the pileus, and in the change in color of the 

 more acrid latex. While L. cinerea is most abundant in August, 

 L. tnucida does not appear until late in August and is most plentiful 

 in September. I have found it only under hemlock trees, while 

 L. cinera seems to grow only under beech trees. From L. trlvialis it 

 may be distinguished by the white spores, the more lax flesh, and the 

 absence of lilac tints in the color of the pileus, which does not become 

 yellowish in fading." 



18. Lactarius circellatus Fr. 



We have not found this in Chapel Hill, and the following descrip- 

 tion is prepared by Mr. Beardslee. It has been reported heretofore in 

 America only from Vermont : 



"Cap fleshy, convex, then depressed at the center and infundibuli- 

 form, opaque and slightly tomentose, brownish-gray, with numerous 

 narrow, darker lines which form eight to ten zones, margin even, in- 

 curved. Milk white, unchangeable, very acrid. 



