

VV/i' .hjaricairac oj Ohio. 473 



KEY TO THE GENERA. 



S|i'ii\- while ( >( niicliiiK'S yellow "i' > u-liracc-i)tis, lilac or pale 

 ]>iiik : iiiiiial)ar-i\'(l in (nic species ami <iiccii in an<iilier) 



Leucosporac <-l-73) 

 Spiiro r()^\-, >alnii m-colored i>r rosy-nist-oob ii\'(l 



Rhodosporae (475) 

 Spores (H'lirafeous, vcIIdw i^h-lnow n or hmu n-rust-colored 



Ochrosporae (476) 

 Sj.Mires ])urpk'. |>iir]'lo-I)P •\vn it hiaok. . . Melanosporae (47^) 



LiaiosroKAi-:. 



A.' Plants corky, tou^li, Ic'itliery or flesliy-lcathcry : pcr-istc!it 

 )r reviving when moistened. 



Plants cork\ ; lumcnium often ])orose at first, becoming 

 lamellate : lamellae often branched and anastomosing. 



Lenzites (543) 

 Plants not cork\-, lamellae never porose. 

 C b'dge of lauKlla.e split into two laminae. 



Schizophyllum (543) 

 C.- 1-amellae not as above. 



]).' Pileiis differing from stipe in texture, or easily 

 separable from it. 

 E.' J 'ileus gelatinous-leathery. 



Heliomyces ( ^t^z) 



E.- Pileu> tleshy and lough or thin and 



leathery Marasmius (SZi) 



1).-' S-ipe, if present, continuous with pileus, but 

 ma\ 1 e absent. 

 1""..' ! amellae obtuse and fold-like. 



Trogia (543) 

 P.- b'dge of lamellae acute. 



1'".' I-ldge of lamellae serrate or notchcfl. 



Lentinus <539) 

 ['.'- Ijjge normally entire. .. Panus (541) 



