Murrill: Some Described Species of Poria 243 



poris his, tota superficie obsita est, membrana, tantum non in 

 ambitu ubi sublibera et subinflexa. Poris tandem in tubos angu- 

 latos, margine fimbriatos, 2-3 lineas altos, ex pallide fuscescentes, 

 elevatis. Totus fungus 1-3 uncias longus, % unc. latus, affinis 

 P. contiguo/' 



Type from Bethlehem, Pennsylvania, by Schweinitz, on fallen 

 trunks of Rhododendron maximum. Compare carefully with 

 Poria favescens and Coriolellus sepium. 



33. Poria hyperborea Berk. ; Cooke, Grevillea 

 15: 27. 1886 



" This also is a very doubtful species, not apparently described. 

 There is but a single specimen, which apparently is the resupinate 

 condition oi Polystictus, and ohdihXy P .hirsutus or P .velutiniis!' 



Type from British North America, by Dr. Richardson, on 

 trunks. Cooke was perfectly correct in saying that this is merely 

 a resupinate condition of some species of Coriolus. Berkeley 

 left a number of manuscript species in the herbarium at Kew, 

 many of them worthless, which were no doubt held back pur- 

 posely. One should be extremely careful about publishing her- 

 barium names unless he can secure permission from the author ; 

 for in striving to give credit, he may bring discredit. 



34. Poria favillacea (Berk. & Curt.) Sacc. Syll. 

 Fung. 6: 305. 1888 



Polyporus favillaceus Berk. & Curt. ; Berk. Grevillea i : 53. 1872. 



" Brevis, sparsus ; margine liberato, tonientoso ; hymenio 

 cinereo; poris minimis. No. 5266. New Eng., Sprague. Con- 

 sisting of little scattered patches ; margin at length free and 

 tomentose ; hymenium ash-colored ; pores Y\^o inch wide. Para- 

 sitic, together with a minute Hydnum, on some indeterminable 

 resupinate Polyporus." 



Type from New England, by Sprague, on trunks. Seen at 

 Kew. The little patches somewhat resemble Aleurodiscus 

 Oakesii, while the tubes are much smaller than those of Coriolus 

 abietinus. 



