CLASSIFICATION OF AGARICS 151 



Atkinson, Mushrooms, PI. 36, Fig. 2, 1900 (much reduced in 



size) . 

 Gibson, Edible Toadstools and Mushrooms, PI. 12, Figs. 2, 4, 



6, p. 131, 1903 (much reduced in size). 



PILEUS 8-l.j cm. broad, lar^e, linn, convex then depressed, with 

 dull colors, dark reddish-purple, sordid red, sometimes mixed with 

 other shades, the reddish color predominating, ivith somewhat 

 separable pellicle, glabrous, somewhat viscid in wet weather, soon 

 dry, pru'uio^c (iiid .siihi/rduiilosc, luai^uin even or somewhat short- 

 striate in age. FLEt^H v/hite, thick. (IILL^? ochraceons fi-oni the 

 'beginning, deeper ochraceons to tan-colored when mature, rather 

 broad, thick, subdistant, broader in front, rounded adnexed, of 

 tqnal length. STEM 7-10 cm. long, 3-4 cm. thick, very p,rm, stout, 

 solid, tinged red or entirely white, subequal or ventricose, almost 

 even. SPORES ochraceous-yellow to alutaceous, subglobose, 9-11 

 micr. TASTE mild. ODOR none or pleasant. 



Usually solitary and rather late. Oak and maple woods of south- 

 ern Michigan. Not very common. August and September. 



As limited above, no bright or shining red forms are admitted 

 from our territory. This species and R. integra have been the re- 

 ceptacle for a good many reddish species with ochraceons gills, and 

 even experienced mycologists cannot agree on their identification. 

 I have kept this name for a large, solitary, often late plant, with 

 firm or hard consistency and dull, dark red and purplish cap, with 

 truly ochraceons gills and spores. R. integra has cream-colored or 

 at least paler spores and is more fragile and often grows in troops. 

 The descriptions of this and K. ochrophjfUa run close together. 

 Cooke's illustration of R. aJutacea fits our plants well. 



FRAGILE S,. Pileus thin, fragile, the viscid pellicle continuous 

 and quite separable, margin connivent. not incurved when young, 

 usually strongly striate. The gills are of equal length, broader 

 anteriorly, narrowed behind. 



Section I. Taste acrid. Spores white in mass. 



129. Eussula emetica Fr. 

 Syst. Myc, 1821. 



Illustrations : Fries, Sverig. Svamp., PI. 21. 

 Cooke, 111., PI. 1030. 

 Gillet, Champignons de France, No. 610. 



