CLASSIFICATION OP AGARK 619 



658. Amanita flavorubescens At k. 



Jour, of Mycologj . Vol. v . 1902. 



Illustrations : Murrill, Mycologia, Vol. ~». I'l. x ~. Pigs, i nut] T 

 Plate i'XN 1 1 of this Report. 



PILEUS H> tin. broad, convex to expanded, vnvrred "i'l' 

 rust <>r powdery chrotne-yellow patches or nf which are easily 



rubbed oil. beneath which the surface is lemon-yellow i" brownish 

 on disk, margin even or faintly striatulate. FLESH thin, yell* 

 ish. GILLS white, long-elliptical, rather narrow, free or adnexed 

 by ;i line, dose. STEM 8 L3 cm. Ion-, i; \-2 mm. thick, white, 

 cil above with tine floccose yellow Bcales, below with reddish scales, 

 its base ending in an oval bnlb, Btuffed then hollow : it-- flesh turn- 

 ing slowly reddish when bruised. ANNULUS superior, distant, 

 thin, membranous, fragile, yellow below, white above. VOLVA 

 vellow, powdery, evanescent. SPORES oboval, 8-10x6-8 micr.j 

 smooth, granular within; basidia t-spored. 



Solitary or gregarious. In frondose woods mixed with I. mix. 

 Ann Arbor. Rare. -Inly. 



The brigh.1 yellow volva, annulus and margin of pileus, and the 

 reddening of the flesh of the stem are ii^ chief distinguishing char- 

 acters. The pileus imiy he entirely yellow in first, becoming red 



dish of sordid brown in ;i<, r e. 



659. Amanita flavoconia At k. Probably Poisonous 



Jour, of Mycology, Vol. 8, L902. 



Illustrations: Hard, Mushrooms, Pig. 15 (as I. xtiana) 

 Plate CXXII1 of this Report. 



PILEUS 3-8 cm. broad, convex then expanded, ohm-.-, viscid, 

 chrome yellow to orange yellow, covered with numerous, yell 

 flocculent masses of the universal veil, which are easily rubbed off, 

 sometimes bare, margin even. FLESH thin, white. GILLS 

 close, medium broad to aarrow, white, edge minutely flmbri 

 trama with divergenl hyphae. STEM 6 10 cm. lonj 

 thick, stuffed then hollow, straight or flexuous, subequal, i 

 with flocculenl scales which are sometimes tinged snlpl 

 yellow-pulverulent above annulus, bulbous. ANN! LI - 

 membranous, sulphur-yellow to chrome-yellow. VOL\ \ 



