The Biology of Polyporus Pargamenus Fries ay 
of this study. A year later Berkeley described it from New 
Orleans, La., under the name of Polyporus laceratus. Three 
years after this Montagne described and figured collections 
of this plant on dead branches and trunks in Cuba as 
Polyporus Flabellum. Types at Paris are well preserved. 
Then Montagne found it among Menand’s New York col- 
lections and gave it the name of the collector. Later 
Léveillé briefly described a form of Polyporus pargamenus, 
collected on trunks in New York by Sallé, as Polyporus sub- 
flavus. In 1849 Berkeley described collections from Mexico 
and South Carolina as Polyporus Xalapensis. In 1851 Fries 
erected Polystictus for a section of Polyporus as an experi- 
ment, changing Polyporus pargamenus to Polystictus par- 
gamenus. Fries’ name is based on Polystictus parvulus K1., 
a close ally of P. perennis, and must therefore stand as a 
synonym of Coltricia proposed by 8. F. Gray in 1821 for 
P. perennis and two other species. Several years afterward 
Berkeley and Curtis described a poroid form of the plant, 
collected on trunks in New York by Sartwell, as Polyporus 
Sartwellii, the types now being preserved at Kew. During 
the same year the same authors described other collections, 
made by Peters on bark of Ilex opaca in Alabama, as Polyp- 
orus ilicincola, the types at Kew not being well preserved. 
Later Thiimen named a poroid form of the plant in question 
Polyporus pseudopargamenus in contradistinction to the 
hydnoid form which he considered the real Polyporus par- 
gamenus. In 1900 Patouillard adopted the generic name 
Coriolus, proposed earlier by Quélet, thus making the name 
Coriolus pargamenus. In the case of the splitting of the 
old cumbersome genus Polyporus and the regrouping of the 
species into a number of smaller groups containing only 
closely related species the writer regards “ Cortolus parga- 
menus” as the correct name. In 1907 Murrill described a 
thick poroid form of the plant from the western United 
States as Coriolus subchartaceus. The last name given to 
this plant is “ Coriolus prolificans,” based on Murrill’s belief 
that Fries’ Polyporus pargamenus is synonymous with his 
P. abietinus, and that the monstrosity named Polyporus 
