110 THE AGARICACEAE OF MICHIGAN 



Gregarious ou the ground, mixed hemlock, beech and maple woods. 

 New Richmond. Infrequent. 



Sometimes the whole plant including the gills is pinkish-buffi or 

 incarnate. The grayish hue is more marked in age. It is said 

 to be under suspicion. 



86. Lactarius croceus Burl. 



.Torr. Bot. Club, Mem. 14, 1908. 

 Illustration: Ibid, Fig. 3, p. 38. 



PILEUS 5-10 cm. broad, broadly convex-umbilicate then depressed 

 to infundibuliform, viscid, azonate or obscurely zonate, micaceous 

 when dry, orange to saffron-yellow, glabrous, margin at first in- 

 volute and pruinose-downy. FLESH rather thin, whitish, staining 

 yellow or ochraceous where cut. GILLS adnate-decurrent, close 

 to subdistant, moderately broad, rarely forked, pallid to pale yellow 

 or incarnate-tinged, changing to cadmium-yellow wliere bruised. 

 STEM 3-6 cm. long, 1-2 mm. thick, equal, stuffed then hollow, glab- 

 rous, pale orange-yellow, spotted. SPORES globose to broadly 

 elliptical, echinulate, 6-8 micr., pale yellow. MILK white, scanty, 

 slowly changing to yellow, acrid or bitter, often slowly acrid. 



Gregarious or scattered. On the ground in woods of oak, maple, 

 elm, etc. Detroit. August-September. Local. 



This approaches L. awantiacus Fr. if indeed it is not identical. 

 That species is said to be poisonous. The milk, flesh and gills of the 

 European species do not change color like ours. I have found it at 

 different times, always in the same woods near Detroit. Miss 

 Burlingham reports it from Vermont and North Carolina, and 

 identified our specimens as the same. 



Section VII. Pileus glabrous, dry; taste acrid or bitter-astring- 

 ent. 



87. Lactarius colorascens Pk. 



N. Y. State Mus. Bull. 94, 1905. 



PILEUS 2-6 cm. broad, nearly plane, then depressed, whitish at 

 first, then reddish-buff to brownish-red, azonate, dry or subviscid, 

 glabrous. FLESH thin. GILLS adnate, narrow, crowded to close, 

 whitish soon broirnish-red. STEM 3-6 cm. long, 5-10 mm. thick. 



