397. Polyporus rutilans. No specimen preserved. 



398. Polyporus gilvus. Correct and the "type" of the common species. 



Section Perennes (now Fomes). 



399. Polyporus marginatus. Correct, but a synonym for the next 

 (Fomes piriicola). Some priorists use the name marginatus now, but gen- 

 erally make it more farcical by writing "Cooke" after it. 



400. Polyporus pinicola. Misdetermination for Fomes leucophaeus. 



401. Polyporus annosus. Misdetermination surely. I find no spores, 

 but do not question (from color of context) it is a young specimen of 

 Fomes rimosus. I would refer it to Fomes robustus if that grew in 

 Schweinitz' region. 



402. Polyporus dryadeus. Misdetermination for* Polyporus gilvus. 



403. Polyporus fomentarius. Misdetermination for Fomes applanatus 

 (American form leucophaeus). No wonder Schweinitz records Fomes 

 "fomentarius" as "vulgaris." 



404. Polyporus nigricans. Misdetermination for Fomes marmoratus 

 of the tropics. Schweinitz' species is from Florida. 



405. Polyporus igniarius. Misdetermination for Fomes rimosus. 



406. Polyporus Ribis. Correct as Fomes. 



407. Polyporus conchatus. Possibly correct, but I doubt it. Not lig- 

 neous enough. More probably a thick species of Polyporus gilvus. 



408. Polyporus microporus. This is Polystictus byrsinus of Montagne. 

 The specimen is from the South. 



409. Polyporus lobatus. This is based on a "contortion" of a plant since 

 named Polyporus reniformis by Morgan, in its normal form. The recent 

 use of the name lobatus for the plant under these known conditions is about 

 as crooked a proceeding as the specimen on which it is based. 



410. Polyporus Pini-canadcnsis. No specimen mounted. I believe there 

 is one in original wrapper, but I neglected to look it up. 



PORIAS. 



Schweinitz lists about sixty species of Poria of which eighteen were 

 claimed to be new species and the remainder referred to European species. 

 I question if there are any, certainly few, American Porias correctly re- 

 ferred to European species in this or any other paper. 



American traditions and determinations. In Europe there is great 

 difficulty with the genus Poria to this day, and in America the lists are 

 not worth citing. Of the forty species Schweinitz referred to European 

 species I believe most all are incorrect, and as they have little bearing 

 on even the history of the subject, I shall not go into them in detail ex- 

 cepting as to the "new species." 



413. Poria favcsccns. This is the resupinate part of the plant now 

 known as Trametes sepium. Otto Kuntze would probably call it Trametes 

 favescens (Schw.) McGinty. 



418. Poria spissa. Fries described this from specimens sent by 

 Schweinitz, and it has also been named by Montagne and Peck. It is a 

 species that changes color so markedly in drying that the description that 

 has been made of it from dried material is not suggestive even of the plant 

 as it grows in the woods. 



