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REPORT OF THE STATE BOTANIST I9II 57 



Cortinarius albidipes n. sp. 



WHITE STEM CORTINARIUS 



Plate 128, figures i-6 



Pileus fleshy, compact, hemispheric becoming- broadly com^ex, 

 obtuse or subumbonate, viscid, glabrous and shining when dry, bufi: 

 color, flesh white, taste mild; lamellae 4-6 mm broad, moderately 

 close, pale violaceous when young, cinnamon when mature; stem 

 commonly narrowed upward from a thickened or bulbous base, firm, 

 solid, silky fibrillose, white ; spores subglobose, 8-10 x 7-9 fx. 



Pileus 5-10 cm broad; stem 5-8 cm long, 1-1.5 cm thick at the 

 top. 



The white stem cortinarius is a large fine species easily recognized 

 by its buff colored viscid cap, its violaceous young gills and its white 

 stem thickened or bulbous at the base. In similar species, having 

 the young gills violet, the top of the stem is also violet. The wholly 

 white stem therefore separates this species from all such related 

 species. Sometimes the spores lodge on the remains of the white 

 webby veil and form a conspicuous rust or cinnamon colored ring 

 near the top of the solid stem. The cap is from 2-4 inches broad, 

 the stem is 2-^) inches long and about 5 lines thick at the top. The 

 plants grow among fallen leaves in woods. Collected near Con- 

 stableville in September. Found but once. 



Agaricus campester majusculus n. var. 



LARGER MUSHROOM 



Plate I2p, figures i-j 



Pileus fleshy, firm, convex or nearly plane, fibrillose and squamose 

 on the margin, even in the center, the margin surpassing the lamellae, 

 the color is dark umber brown, flesh firm, white, not at all or but 

 very slightly and slowly assuming a faint ruddy tint when cut, taste 

 mild, agreeable ; lamellae thin, close, free, pink, becoming brown or 

 blackish brown; stem stout, equal, stuffed, fibrillose, white, with a 

 white annulus, the white veil at first concealing the lamellae ; spores 

 broadly ellipsoid, 7-9 x 6-7 /u. 



Pileus 6-15 cm broad; stem 2.5-7 cm long, 1-2 cm thick. 



The larger mushroom is one of very many varieties of the com- 

 mon mushroom. It closely approaches the garden mushroom, var. 

 hortensis Cke., but differs from it in its rather larger size, 

 darker colored cap with even center and more coarsely scaly margin. 



