CLASSIFICATION OF ACARK'S 

 325. Cortinarius rubens sp> QOV. 



PILEUS 3-7 cm. broad, hemispherical then convex-expanded, 

 vermillion-red to orange-fulvous, anicolorous, with a viscid, separa- 

 ble, toughish pellicle, glabrous, even, Bhining when dry. FLESH 

 thick, whitish. GILLS adnexed, becoming emarginate, rather 

 broad, close, caesions or pale drab al first, then argillaceous-cinna- 

 mon, cW^c entire and tinged dull citron-yellowish. STEM IT cm, 

 long, ll.~) cm. thick, solid, dry, /"//< straw-yellouj t<> whitish, citron- 

 yellowish within, fimbriate from the cortina, equal ;i l>« »\ ** the round 

 rii, marginate-depressed bulb which is clothed by tin- vermillion-red 

 universal veil excepl below where it is white ami attached to white 

 mycelium. SPORES almond-shaped, very inequilateral, tubercul- 

 ai.'. L5-18x7-8.5 micr. BASIDLA 16x13-15 micr., Btout, L-spored. 

 CORTINA white or tinged with red. ODOR faintly aromatic. 

 TASTE of flesh bitterish disagreeable, slowly more intense. 



Gregarious or subcaespitose. On the ground among Leaves in 

 frondose woods of oak, maple, etc., its mycelium attached to 

 myeorhiza of undetermined roots. Ann Arbor. October. Rare. 



The bright red color of the pileus and the universal veil is strik- 

 ing and is rarely seen in this subgenus. The veil is very evident 

 on the fresh plants and shows on the margin of the bulb as ;i bright 

 red to orange-red decoration, and in the button Btage is continuous 

 with the pellicle of the pileus, breaking in a circumscissile manner 

 like the yellow veil of r. atkinsonianus. Then- is no violel or purple 

 present in the cap although the young ijills have ;i dull violaceous- 

 gray tint called "caesuras." The .-due of the gills is citron-straw- 

 yellow and, when seen from below, ui\rs the impression of that color 



to theresl of the gills. It differs from C. sublateritius Pk. in it- much 

 larger spores and the distinct universal veil, it agrees closely 

 with the description of 0. testaceus Cke., except in details. Maire, 



however, says Cooke's plant is identical with C. rufo-olivac Fr 



to which our plant cannot be referred, although related to it. 

 Specimens of our Bpecies have also been received from Madison, 

 Wisconsin. 



