52 8 THE AGARICACEAE OF MICHIGAN 



or convex-expanded, obtuse, white, very silky, in age somewhat 

 squamulose, even on margin, edge floccose. FLESH rather thin,. 

 while soft. GILLS free, remote, broad, very ventricose, crowded, 

 flesh color, edge eroded. STEM 8-20 cm. long, 1-1.5 cm. thick, solid, 

 glabrous, tapering upward, usually curved, white, deeply inserted 

 a1 the base into the large, thick, loose VOLVA, which splits at apex, 

 and persists as an ample bag like or cup like sheath, sometimes 

 entire, sometimes torn. SPORES oval to broadly elliptical, G-8x5.5 

 in in-., smooth, rosy in mass. 



Solitary or few together on trunks of living trees or decayed 

 wood, of maple, beech, elm, horse-chestnut, etc.; usually from a 

 ciack or wound. Throughout the State. July-September. Infre- 

 quent. 



A noble innshroom, often ensconced on a tree trunk out of reach, 

 its perfed shape and silky dress evoking admiration from every- 

 one. In I he egg-stage it reminds one of the large Phalloids. 

 Brought into the house at this stage, and placed in a drinking-glass 

 willi a moist cloth about its base, it will expand in all its perfection. 

 It has not been shown as yet that it lives parasitically on the trees 

 from which it grows. Once located, it may be looked for each 

 succeeding year on the same spot. A maple tree on the campus 

 of the University of Michigan is the home of one which fruits regu- 

 larly every summer. It attains a considerable size. The species 

 occurs throughout the world. 



566. Volvaria speciosa Fr. (Poisonous) 

 Syst. Mycol., 1821. 



Illustrations: Patouillard, Tab. Analyt., Xo. 010. 

 Ricken, Hliitterpilze, PL 70, Fig. 1. 

 Cooke, 111., PI. 297. 

 Hresadola, Fungh. mang. e. vel., PI. 11. 

 filler, Champignons de France, No. 711. 



PILEUS 5 Id cm. or more broad, globose-ovate at first, then ex- 

 panded to plane, subumbonate, very viscid, glabrous, white or tinged 

 pay, margin not striate. FLESH thin, soft, putrescent. GILLS 

 free, crowded, rather broad, ventricose, deep flesh-color or rosv. 

 STEM in I'd cm. long, i. 2 cm . thickj equal or uearly SQ< af fiyfif r/7 



lose, glabrescent, base tomentose, white. VOLVA large, splitting 

 apicaUy, close-fitting, flaccid, edge torn. SPORES large, broadly- 

 elbptical, smooth, variable in size, 12-18x8-10 micr. CYSTIDIA 



