776 THE AGARICACEAE OF MICHIGAN 



827. Collybia zonata Pk. 



N. V. Slate Mus. Rep. 24, 1872. 



Illustrations : Hard, Mushrooms, PL 14, Fig. 81, p. Ill, 1908. 

 White, Conn. State Surv. Bull. 15, PL 9, 1910. 

 Murrill, Mycologia, Vol. 4, PL 5(3, Fig. 8 (as GollyUdmm 



zonatum). 

 Lloyd, Mycological Notes, Vol. I, No. 5, Fig. 17, p. 43. 



PILEUS 1-2.5 cm. broad, convex or nearly plane, umMlicate, 

 covered with coarse, tawny, densely matted hairs, arranged in 

 obscure zones. GILLS free, close, narrow, white. STEM 2-5 cm. 

 long, about 2 mm. thick, firm, equal, hollow, covered with Tawny 

 hairs similar to those of the pileus. SPOKES broadly elliptical, 

 smooth, 5x4 micr., white. 



Solitary or subcaespitose. On decaying wood. New Richmond. 

 August- September. Infrequent or rare. 



The dark tawny color, the zones on the pileus and the fibrillose- 

 hairy covering of cap and stem distinguish our plant. It revives 

 after drying. When dry the pileus becomes concentrically grooved. 

 Some think it is a large variety of G. stipitaria, but as it is easily 

 distinguished from that species, such a view is speculative. To 

 prove this point, it would be necessary to grow one form from spores 

 or tissue derived from the other. This has not been done. 



828. Collybia stipitaria Fr. 



Syst. Myc, 1821. 



Illustrations: Lloyd, Mycological Notes, Vol. I, No. 5, Fig. 15, 

 p. 42. 

 Berkeley, Outlines, PL 5, Fig. G. 

 Cpoke, 111., PL 149. 



PILEUS small, 5-12 mm. broad, convex-expanded to plane, urn* 

 bilicate, with a minute blackish papilla in umbilicus, whitish, gray- 

 ish or pale grayish-tawny, minutely and radiatcly fibrillose-liairy or 

 strigose-liairy, radiate-rugulose when dry. FLESH thin, submem- 

 branous, soft. GILLS adnexed-seceding, subdistant to close, nar- 

 row, white. STEM 2-5 cm. long, filiform, .5-1 mm. thick, equal, 

 reddish-black when moist, whitish when dry, tough, cartilaginous, 

 tubular, instititious, clothed with a grayish-white fibrillose cover- 



