[Vol. 3 

 208 ANNALS OF THE MISSOUKI BOTANICAL GARDEN 



Sacc. Syll. Fung. 6:660. 1888; Bresadola, (Hym. Hung. 

 Kmet.), I. R. Accad. Agiati Atti III. 3:114. 1897. 



Corticium (Tomentella) ferrugineum Persoon, Obs. Myc. 

 2 :18. 1799. Thelephora ferruginea Persoon, Syn. Fung. 

 2:578. 1801 ; Myc. Eur. 1 :141. 1822; Fries, Elenchus Fung. 

 1 :198. 1828 ; Epicr. 543. 1838. Corticium ferrugineum sub- 

 genus Eypochnus Fries, Hym. Eur. 661. 1874. Hypochnus 

 ferruginosus (Fr.) Patouillard, Tab. Anal. Fung. 17. /. 26, 

 1883. Tomentella ferruginea Pers. ex Schroeter, Krypt.-Fl. 

 Schlesien 3:419. 1888. 

 Illustrations: Patouillard, Tab. Anal. Fung. /. 26, 

 Fructification effused, adnate, often suborbicular, thin, dry, 

 tomentose, hypochnoid, drying Sudan-brown; 

 structure in section about 300/x thick, composed of 

 loosely interwoven, even-walled hyphae 4%-5iU 

 in diameter, nodose-septate, concolorous through 

 the whole fructification with the hymenium; no 



Fiff 1 .... 



H ferru ineus ^ystidia ; basidia 4-spored; spores subglobose, 

 Hypha, spore coucolorous with the fructificatiou, echinulate, 

 ^ body of spore about 7-8/x in diameter. 



Fructifications 2-4 cm. in diameter or 3-6 cm. long, about 

 2-3 cm. broad. 



Under side decaying limbs and logs of various frondose 

 species. Canada and New Brunswick to Georgia and west- 

 ward to Michigan. July to October. Occasional. 



This species is well marked by its very constant color, 

 common to both hyphae and spores, and its occurrence in ad- 

 nate, small, and very thin, hypochnoid areas of the form and 

 dimensions given. American collections agree closely in 

 above respects with the European specimens received from 

 Bresadola which he has noted as surely H. ferrugineus. 



Specimens examined:^ 

 Sweden: Femsjo, L. Eomell, 225, 227. 

 Austria-Hungary: Trentino, G. Bresadola; Tatra Magna, 



*With regard to the citation of specimens, all except those of "Exsiccati'^ 

 are in Burt Herbarium, which are cited without explicit reference to place in 

 other herbaria. For example, the specimens cited ''Sweden: Femsjo, L. Bomell, 

 "y^" are in Burt Herbarium. The data given is that received with the 



