368 The Ohio Naturalist. [Vol. XI, No. 8, 



81. Ganoderma curtisii (B.) Murrill, Bull. Torr. Club 29 : 602. 



1902. 

 Polyporus curtisii Berk. 



Closely related to the next species, but probably rare in 

 this state. vSaid to grow on ash and maple wood. 



82. Ganoderma sessile Murrill, Bull. Torr. Club 29 : 604. 1902. 



This species has always been known to American col- 

 lectors as Polyporus lucidus (Leys) Fr. Collectors should 

 have no trouble in identifying it, as it is the only species 

 with a varnished pileus that is at all common here. It 

 occurs both with and without a stipe, but when the stipe is 

 present it is always lateral. Common at the bases of stumps 

 of different deciduous trees. 



Illustrations: Atk. Stud. Am. Fung. p. 192, pi. 72; Hard. 

 ' p. 404, f. 332. 



83. Cerrena unicolor (Bull.) Murrill, Jour. Myc. 9 : 91. 1903. 

 Boletus unicolor Bull. 



Known as Daedalea unicolor (Bull.) Fr. The collector 

 who finds this plant for the first time is very likely to decide 

 immediately that it belongs to the genus Coriolus, as the 

 thin, leathery, pileus and irpiciform hymenium would 

 indicate. But the hymenium is at first plainly labyrinthi- 

 form, and only becomes irpiciform with age. The hymenium 

 is at first white but later takes on a darker color. The 

 pileus is densely strigose- villous, mtilti-zonate, and frequently 

 covered with a green alga. Common on all kinds of dead 

 deciduous wood. The writer frequently finds specimens 

 which have continued their growth the second year from the 

 margin of the first vear's growth. 



Illustrations: Bull. Herb. Fr. pi. 408, 501; Bolt. Hist. 

 Fung. app. pi. 16; Sow. Eng. Fungi pi. 325. 



84. Daedalea quercina (L.) Pers. Syn. 500. 1801. 

 Agaric us querciiius L. 



On dead oak wood. Said to be common in some i^arts of 

 the state. 



Illustrations: Sow. Eng. Fungi pi. 181.; Bull. Herb. Fr. 

 pi. 352; Hard, p. 42S, f. 357. 



85. Daedalea confragosa (Bolt.) Pers. Syn. 500. LSOl. 

 Boletus confragosus Bolt. 



Trametes rubescens Fr. is a thin form of this plant. It is 

 the only species of the genus that is at all common here. 

 Various conditions of the hymenium are found, grading 

 from strictly poroid to labyrinthiform and lamellate, some- 

 times all stages being found in one plant. The hymenium 

 changes from white to reddish brown when touched. Found 

 from August until December, on dead willow wood. 



Illustrations: Bolt. Halifax Fung. Suppl. pi. 160; Alb. & 

 Schw. Consp. Fung. pi. 11, f. 2; Hard, p. 429, f. 358. 



