THE AGARICACEAE OF MICHIGAN 



reniform or dimidiate, reddish-yellow to tawny-yellow when fresh, 

 fading to grayish-brown, adorned with small, tawny, fibrillose scales, 

 scarcely striate on the margin, which is decurved. FLESH pliant, 

 thin. GILLS close, rather broad, slig'htly ventricose, rounded be- 

 hin.l. yellow at first, becoming ochraceous-fuscous then rusty, rad- 

 iating from the villose point at the attachment of the pileus. 

 SPORES spherical, 6 micr. diam., smooth, nucleate. 



On decaying logs and rotten wood, in low swamps. Ann Arbor, 

 New Richmond. July to September. Infrequent. 



The color of the pileus varies from a strong tinge of red in some 

 specimens to no red in others. .At times the species may be easily 

 taken for small forms of Claudopus nidulans, as the coloring is 

 somewhat similar. The young growing specimens are entirely 

 tomentose-squamulose, forming a variegated surface when the pileus 

 is expanded. The perfectly globular spores as well as the absence 

 of a white tomentum on the basal part of the pileus separate it 

 from C crocophyllus. It is probably found throughout the State. 



RHODOSPOREAE 



Volvaria Fr. 

 (From the Latin, Volra, a wrapper.) 



Pink-spored. Stem provided at its base with a rolra which is 

 formed from a discrete universal veil; without an annulus; stem 

 separable from the pileus. Gills free, ventricose, rounded behind. 



Terrestrial or iignicolous. With the exception of V. bombycina 

 ami V. speciosa, the species are small and rather rare. They cor- 

 respond to Amanitopsis of the white-spored group, and differ from 

 all the pink spored, except Chamaeota, in the free gills, the volva, 

 mid the separable stem. V. bombycina is known to be edible; the 

 others are mostly poisonous. 



The PILEUS is soft in texture, corresponding in this respect with 

 the Amanitas. Its surface may be glabrous or beautifully silky, in 

 a lew species viscid, margin even or striate. Most of them have a 

 whitish pileus. bu1 a lew vary to grayish or brown. The GILLS 

 are I. road, ventricose, do not reach the stem, and are soft as in 

 Amanita. The STEM is glabrous, silky or villose, some covered 

 with minute spreading hairs; there is no distinct cortex, but a few 

 species are said to lie partly hollow. We need more accurate infor- 

 mation concerning the interior stem-structure of the rarer species. 



