Murrill: Polyporaceae of North America 363 



This genus was founded on Phaeolus sistotremoides (Alb. & 

 Schw.) Murr. and twelve other species, the majority of which I 

 do not consider congeneric with the type. When I published the 

 genus Romellia I was ignorant of the fact that Phaeolus had been 

 raised from the subgeneric rank assigned it in 1897 (Ann. Bot. 

 Buitenz. First Suppl. 112). 



Species : P. sistotremoides (Alb. & Schw.) Murr. [see Bull. 

 Torrey Club 31 : 338-340. I9°4J- 



15. COLTRICIELLA Murr. Bull. Torrey Club 31 : 348. 1904 

 Type : Coltriciclla dependens (B. & C.) Murr. 

 Hymenophore small, annual, tough, epixylous ; stipe attached 



to the vertex of the pileus ; surface of the pileus anoderm, zonate : 

 context spongy, fibrous, ferruginous, tubes angular, one-layered, 

 dissepiments thin : spores ellipsoidal, smooth, ferruginous. 



Species : C. dependens (B. & C.) Murr. [see Bull. Torrey 

 Club 31 : 348. 1904] . 



16. COLTRICIA S. F. Gray, Nat. Arr. Brit. PI. 1 : 644. 1821 



Type: Coltricia pcrennis (L.) Murr. 

 Strilia S. F. Gray, Nat. Arr. Brit. PI. 1 : 645. 1821. 



Type : Strilia cinnamomea (Jacq.) S. F. Gray. 

 Pelloporus Quel. Ench. Fung. 166. 1886. 



Type : Pelloporus triqueter (Seer.) Quel. 

 JMucronoporus Ell. & Ev. Jour. Myc. 5": 28.//. 8. 1889. 



Type : Mucronoporus tomentosus (Fr.) Ell. & Ev. 

 Onnia Karst. Finlands Basidsv. 326. 1889. 



Type : Onnia circinata (Fr.) Karst. 

 Xantkoclirous Pat. Cat. Tun. 51. 1897. 



Type : Xanthochrous tomentosus (Fr.) Pat. 



Hymenophore annual, terrestrial or humus-loving, simple, 

 small to medium, usually circular and central-stemmed ; surface 

 anoderm, brown, zonate or azonate : context brown, coriaceous to 

 spongy ; hymenium concolorous, covered with yellowish or whitish 

 powder when young, tubes thin-walled, at length fimbriate : spores 

 smooth, rounded, ferruginous, cystidia rarely present. 



Species : C. cinnamomea (Jacq.) Murr., C. perennis (L.) Murr., 

 C. parvula (Kl.) Murr., C. tomentosa (Fr.) Murr., C. obesa (Ell. 

 & Ev.) Murr., C. Memmingeri Murr. [see Bull. Torrey Club 

 31 : 340-348. 1904]. 



