160 THE AGARICACEAE OF MICHIGAN 



margin thin but not striate except when fully expanded, surface 

 when dry as if with a bloom. FLESH white, red under the cuticle, 

 thin, fragile, unchangeable. GILLS white, later dingy-white or 

 "yellowish," medium close to subdistant, adnexed, not broad, broad- 

 est in front, mostly equal, few or none forked, interspaces sometimes 

 venose, edge floccose-crenulate. STEM rather long, 5-8 cm., 8-12 

 mm. thick, sprinkled rosy-pink, equal or subequal, spongy-stuffed, 

 fragile but rather soft. SPORES white in mass, globose, 8-10 micr. 

 TASTE mild. ODOR none. 



Solitary or scattered. In mixed or maple-birch woods of the 

 Northern Peninsula. Infrequent. August and September. 



Distinguished by its brilliant red, viscid cap, small to medium 

 size, mild taste and white crenulate gills and spores. Peck also 

 notes the floccose-crenulate edge of the gills, which is due to cys- 

 tidia. R. uncialis, R. sericeonitens and R. subdepallens are the only 

 others of the Fragiles group with mild taste, red cap and white 

 spores. Prom R. unciales it differs by the deep color, character of 

 gills and habitat. R. sericeonitens is hardly viscid and becomes 

 silky-shining ; it has a different stature and color. Maire points out 

 that R. punctata (Jill, and R. pseudointegra A. & G. have gills 

 with a floccose-crenulate edge. 



142. Russula uncialis Pk. (Edible) 



N. Y. State Mus. Bull. 2, 1887. 



Illustrations : Peck, N. Y. State Mus. Bull. 110, PL 107, 1907. 



PILEUS 2-5 cm. broad, thin, rather fragile, c*onvex then ex- 

 panded-depressed, pink or bright flesh-color, unicolorous, the rather 

 adnate pellicle slightly separable, slightly viscid when moist, 

 pruinose and pulverulent when dry, margin not striate till old. 

 FLESH white, pink under the pellicle, unchanged. GILLS pure 

 white, hardly changed, rather broad, broadest in front, narrowed 

 behind and adnate, subdistant or moderately close, distinct, entire 

 on edge, few forked, interspaces venose. STEM white, rarely tinged 

 pink, rather short, 1-3.5 cm. long, 1-10 mm. thick, spongy-stuffed, 

 equal, glabrous. SPORES white in mass, subglobose, echinulate, 

 7-8 micr. TASTE mild. ODOR none. 



Gregarious. In oak woods of southern Michigan. July and 

 August. Quite common in places. 



The persistently white gills and spores, the mild taste, uniform 

 pink color and size, distinguishes this Russula. It is sometimes 

 more than an inch in width. 



