. Tlie Agaricaccae of Ohio. 539 



Notes. 



Remarkably cespitose plants referred to this genus by the 

 student should usually be looked for in the genus Collybia. Ohio 

 plants usually known as Collybia lachnophylla are called Maras- 

 mius cohaerens (Fr.) Bres. by some writers. 



Montague's species have not been recognized by collectors 

 since their publication. 



The plants reported by Morgan in the Mycologic Flora as 

 M. fusco-purpureus Pers, were later referred to M. semihirtipes. 



M. elongatipes was first published as M. longipes. The 

 latter name was preoccupied. 



M. siccus, M. bellipes, M. campanulatus and several other 

 species not reported from Ohio are very closely related. The 

 pileus of M. siccus is described as "roseo-pallido" ; that of M. 

 campanulatus as ochraceous-red. A plant with the pileus bright 

 ochraceous is frequent in Ohio. Another with the pileus pinkish 

 to purplish also occurs. In very young plants the stipe is of 

 the same color, but becomes blackish-brown as it matures, be- 

 ginning at the base, tlie apex remaining purplish for some time. 

 Morgan has described this plant as M. bellipes. Even in dried 

 specimens (at least if not too old) the plants can be readily 

 distinguished. In this paper the plants with ochraceous pileus 

 are regarded as AT. campanulatus, while those with pinkish or 

 purplish pileus are regarded as JNI. siccus with M. bellipes as 

 a synonym. 



LENTINUS FR. 



A.^ Plants with distinct stipe. 



B.^ Pileus scaly or squamulose. 



C.^ Pileus umbilicate to infundibuliform, with blackish, 

 hairy scales. S. 580; St. 2: 154; Mc. 229; M. B. 



131 : 43; 'M. 194 L. tigriiius Fr. 



C.' Pileus convex to plane. 



D.' ]\Iargin of pileus sulcate. S. 584; M. B. 131: 

 44 ; M. 194 : L. siilcatus Berk. 



