70 ELEVENTH REPORT. 



Gills ochraceous from the beginning, deeper ochraceoiis to tan-colored when 

 mature, rather broad, thick, subdistant, broader in front, rounded adnexed, 

 of equal length. Stp:m 7-10 cm. long, 3-4 cm. thick, very firm, stout, solid, 

 tinged red or entirely white, subequal or ventricose, almost even. Spores 

 ochraceous-yellow to alutaceous, subglobose, 9-11 micr. Taste w/W. Odor 

 none, or pleasant. 



Usually solitary and rather late. Oak and maple woods of southern 

 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 receptacle for a good 

 many reddish species with ochraceous 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 ochraceous 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 R. ochrophyUa run close together. Cooke's 111. 

 of R. alutacea fit our plants well. 



14. RUSSULA MARIAE Pk. 



(Mary's Russula.) 



Illustrations: N. Y. State Mus. Bull. 75. 1903. PL 85, fig. 1-8. 



PiLEUs 2-7 cm. broad, -firm, convex to piano-depressed, wdth an adnate 

 continuous pellicle, separable on margin, broadly viscid to dry, not striate, 

 when fresh, opaque or dull, hardly viscid, usually dry, dark blood-red, purple 

 t»r sometimes pink-red, glaucous. Flesh white, pink under the cuticle, 

 rather firm. Gills whitish then yellowish or pale ochraceous, close, distinct, 

 rather narrow, broader toward front, narrowdy adnate, mostly equal, few 

 forked. Stem reddish, purplish or white, equal or tapering downward, 

 spongy-stuffed, rather short, even or obscurely wrinkled, 2-5 cm. long, 1-5. 

 cm. thick. Spores pale yellow to ochraceous. yellow, globose, 7.5 micr. 

 Taste mild or tardily acrid. Odor none. 



Gregarious. Woods or open places under trees. Probably thruout 

 the state July to September. 



I have included here all our red forms with glaucous, rather firm and some- 

 w^hat dry pileus. A medium sized plant grows around Ann Arbor with gills 

 more ochraceous than the type, with flesh tardily acrid and with white stem; 

 but because of its distinct whitish bloom on the cap, it is included. A small, 

 pale red, subacrid form grew under pines at Marquette on the sand; its cap 

 was glaucous, and it is also included. R. Mariae is to be distinguished 

 from R. veternosa and R. tenuiceps by its taste, firmness, short stem and even 

 glaucous pileus. The glaucous-pruinate cap is sometimes yellow-spotted 



on the disk. 



15. Russula xerampelina Fr. 



(The variegated Russula.) 



Pileus 5-10 cm. broad, firm, convex then piano-depressed, dry or very 

 slightly viscid in wet weather, pellicle hardly separable, not striate on margin, 

 surface glabrous or subpruinose, purplish-red to purplish-olive, disk olivaceous, 

 variegated. Flesh compact, whitish then dingy. Gills creamy-white to 

 creamy-yellowish, then sordid, rather close, adnexed, moderately broad 

 thruout, thickish, often forked, shorter ones usually intermingled, inter- 

 spaces venose. Stem white or rosy-tinged, soon dingy olivaceous-yellowish 



