CLASSIFICATION OF AGARII 



separable, margin a1 length distinctly tubercular-striate. FLESH 

 thin, white, red onder the pellicle. GILLS shining white, rather 

 clos.\ aarrowly adnate, aot very broad, broadest in front, few 

 forked, equal, interspaces venose. STEM white, snbequal, on 

 changed, glabrous, Bpongy-stuffed, 6-7 cm. long, L-2 cm. thick. 

 SPORES white in muss, globose, echinulate, v 9 micr. TASTE 

 tardily Inn very acrid. 



/// tn»,ps. Hemlock ami mixed woods on the ground. Augusl 

 and September. Northern Michigan. 



Differs from /.'. emetica in thai iis acrid taste develops Blowly, 

 in the uneven and rather dull pileus and in the habit of appearing 

 in troops <>n the ground. It was formerly referred t" R. emetica, 

 and is close to it. 



131. Russula fragilis Fr. 



Syst. Myc, L821. 



Illustrations: Cooke, 111.. PI. L091. 



Gillet, Champignons do France, No. G14. 

 Patouillard, Tab. Analyt, No. 622. 

 .Michael. Fuhrer f. Pilzfreunde, No. 13 (var.). 

 Ricken, Bliitterpilze, PI. 1!), Fig. 3. 

 Hard, Mushrooms. Fig. 172, p. L92, 1008. 



PI LEI rS 2.5 5 cm. broad, very thin and fragile, convex then piano- 

 depressed with a thin viscid pellicle, tubercular striate on the thin 

 margin, glabrous, rather uniform rosy or pah red, sometii 

 faded or bleached to white. FLESH white under the pellicle, thin. 

 GILLS white, thin, close, crowded, adnexed, ventricose, moderately 

 broad. STEM 2.3-5 cm. Long, .5 I cm. thick, white, spongy then 

 hollow, equal, fragile. SPORES white in moss, subglobose, : I 

 micr. TASTE promptly and very acrid. ODOB none. 



Scattered. On the ground in woods. Throughoul the 

 July-August. Infrequent. 



This species, as limited here, is only distinguishable from R. 

 emetica relatively; it is smaller, color paler, flesh thinner and d 



fragile and white under the cuticle. Maire >:ivs the ta8te is n 



quickly acrid on the tongue than />'. emetica, but do! as violent. 

 Tt grows in somewhat dryer situations. Var. nivca is a white plant, 

 otherwise the same. R. fallax Oke. used to be considered a \ 



of it. 



