80 ELEVENTH REPORT. 



Scattered. Woods thriiout the state. Uncommon. July and August. 



This species, as Hmited by the above description, is only distinguishable 

 from R. emetica relatively, it is smaller, color paler, flesh thinner and more 

 fragile, white under cuticle. It grows in somewhat dryer situations. It 

 formerly included a number of so-called color varieties, but some of these 

 have been segregated; such are R. violacea Quel, and R. fallax Cke. The 

 var. nivea is a true color form. 



36. RUSSULA FALLAX (SCHAEFF.) Fr. * 



(The deceptive Russula.) 



PiLEUS 3-7 cm. broad, thin, fragile, color incarnate or pale rose, the disk 

 pale olivaceous or livid, sometimes darker or purplish, soon plane or slightly 

 depressed on disk, c^uite viscid, margin striate and becoming elevated, surface 

 faintly rugulose under lens. Flesh white. Gills white, unchanged, sub- 

 distant, attached by a point, narrow, edge even. Stem 3-4 cm. long, 6-10 

 cm. thick, pure white, cylindrical or compressed, equal, spongy-stuffed, 

 soon hollow, longitudinaily-wiinkled under lens. Spores white in mass, 

 subglobose, 7.5 micr. Taste promptly and very acrid. 



Solitary or gregarious. In sphagnum bogs, low mossy ground in woods, 

 etc., often attached to sphagnum. Distributed thruout the state. Not rare. 

 July, August and September. 



This species differs in two important particulars from R. fragilis. The 

 gills are subdistant, and the pileus is livid or olivaceous in the centre. It 

 is very characteristic of the sphagnum Flora of the state. It has often 

 been referred to R. fragilis as a variety; Saccardo erected it to a species.. 



37. Russula veternosa Fr. 

 (The drooping Russula.) 



Pileus 5-7.5 cm. broad, convex then expanded, with a somewhat separable 

 pellicle, indistinctly striate on margin, deep rose-red (like R. emetica.), viscid 

 when moist. Flesh white, red under the cuticle. Gills white at first, 

 then straw-color or pale ochraceous, narrow, adnate, close, broader in front, 

 equal or few shorter, few forked, interspaces venose. Stem white, never red, 

 equal or subequal, spongy-stuffed, somewhat slender, fragile, hollow, even, 

 1-1.5 cm. long, 1-1.5 cm. thick. Spores pale yeUotoish-ochraceous, sub- 

 globose, echinulate, 8-9 micr. Taste very acrid. Odor none. 



Scattered or gregarious. Oak and maple woods of southern Michigan. 

 July and August. 



This represents a group of red Russulas with acrid taste, and gills varying 

 cream-color, pale ochraceous or somewhat yellowish in the different forms. 

 I have limitecl the name to those with white stem and a rather firm and 

 hardly striate pileus, altho it may include several forms of which only the 

 spore color has so far been distinguishable. The separable, viscid, chstinct 

 pellicle and rather fragile stem, relates it to the Fragiles. From R. 

 tenuiceps it is separated 1)y the less deep-ochraceous spores and gills, the 

 firmer consistency of pileus and gills, and the uniform red color and even 

 margin of the pileus. 



