(412) 
Scaphophorum Ehrenb. Horae Phys. Berol. 1: 94 (typo- 
nym). 1820. 
Schizophyllum Fries, Syst. Myc. 1: 330(typonym). 1821. 
Apus S. F. Gray, Nat. Arr. Brit. Pl. 1: 617 (typonym). 
x821. 
Schizonia Pers. Myc. Eur. 3: 14 (typonym). 1828. 
Sporocarp tough, coriaceous, reviving: pileus dimidiate: 
lamellae densely hirsute, the edge splitting longitudinally, the 
parts becoming revolute: spores white or hyaline: veil none: 
stipe none or a mere lateral prolongation of the pileus. 
Type, Schizophyllum commune Fries. (Syll. 5: 655.) 
This well-marked genus has had many names, all based 
on the same type species, Agaricus alneus L. 
19. PLEUROTOPSIS (P. Henn.) gen. nov. 
Marasmius § Pleurotopsis P. Henn in E. & P. Nat. Pf. 
1'**; 226.. 18098. 
Sporocarp thin, membranous, reviving: pileus sessile, at 
first resupinate: lamellae radiating from a central or eccentric 
point: spores white or hyaline: veil none: stipe none. 
Type, Marasmius spodoleucus Berk. Outlines Brit. Fung. 
224. 1860. (Syll. 5: 567.) Ann. Nat. Hist. 1859. 
This corresponds to Marasmitus § 3, Apus, of the Syloge. 
20. SCYTINOTUS Karst. Hattsv. 97. 1879. 
Sporocarp tough, coriaceous, reviving: pileus sessile, at 
first resupinate, of uniform texture: lamellae radiating from 
a central or eccentric point: spores white or hyaline: veil 
none: stipe none. 
Type, Panus ringens Fries. (Syll. 5: 628.) 
This corresponds in a general way to the resupinate 
sections of Panus and Lentinus as given in the Sylloge. 
21. RESUPINATUS (Nees) S. F. Gray, Nat. Arr. Brit. Pl. 
617. 
Sporocarp tough, coriaceous, reviving: pileus sessile, at 
first resupinate, with a gelatinous upper stratum: lamellae 
from a central or eccentric point: spores white or hyaline: 
veil none: stipe none. 
