CLASSIFICATION OF AGARICS 



Section II. Universal veil Dot manife 



*(lills, flesh or stim iii first mi sinus, violaceous, bluish •>>' pur 



/ilish. 



327. Cortinarius purpurascens IV. I.iumi.i 



Epicrisis, 1836-3& Obs. 2, L818. 



Illustrations : Cooke, 111.. PL 723. 



Gillet, Champignons de Prance, No. 224. 

 Plate 1A.X1 .if this Report. 



\'\ LEUS 5-8 cm. broad, broadly convex to Bnbexpanded, dark 

 purplish umber or entirely violet purple when young, soon discolor* 

 ed ;uk1 variegated with clay-color or brown, opaque, glabrous, even, 

 with a viscid, separable pellicle. FLESB thick, compact, tinged 

 azure or purplish, fading to whitish in age, but changing rapidly to 

 ih i j> purple when bruised. <ilLLS adnexed and rounded behind, 



then emarginate, rather narrow, close, at firsl aznre-hlne or darker, 

 changing to deep purph when bruised. STEM usually short, stout, 

 2-5 cm. long, LO-20 nun. thick, solid, subequal, fibrillose from the 

 cortina. hulh not large, subemarginate to disl incl ly marginate, 

 scarcely ever depressed, soon oval, purplish, flesh quickly deep 

 colored when bruised. SPORES 8-9.5 (rarely 10) \ 5-5.5 micr. 

 elliptic-ovate, rough-echinulate, dark in mass. BASIDIA 10-452 

 8-9 micr., t-spored. ODOB and TASTE mild. 



Gregarious, solitary or subcaespitose. <>n the ground in open 

 woods, sometimes in bare, exposed places where soil is hard. Ann 

 Arbor, Detroit. September-October. Infrequent. 



The American plant has more purple in the pileus than Bhown 

 in my collection from Sweden and as given by European authors. 

 In all other respects it agrees with thai <»t' Europe This is ( 

 purpurascens in the sense of Ricken. The Bpore-measurements 

 given 1>.\ fcfassee are too large. We have three related species which 

 mighl be easily confused bj not taking account of the Bpor< 

 aggregatus has smaller spores and its flesh and gills do not chai 

 to purple when bruised. C. sphaerosperma is a much larger plant, 

 w ith almost spherical spores. The common form of ' '. purpun 

 is small, stout and squatty, although more luxuriant Bpecinn 

 occur in favorable \\ eal her. 



