188 MURRILL : POLYPORACEAE OF NORTH AMERICA 



This species is quite rare, but those who have found it have 

 made good notes on its appearance when fresh ; attracted, no 

 doubt, by its striking appearance. As I have observed it growing 

 on old logs at Blacksburg, Virginia, the sporophores are ochra- 

 ceous to reddish-orange at first, the pileus becoming paler and the 

 hymenium darker with age. The substance within is honey-yel- 

 low, changing to reddish, and very zonate. On account of the 

 rather fleshy and sodden character of the sporophore there is con- 

 siderable shrinkage and change of form on drying. Specimens 

 have been examined from Canada, Dearness ; Iowa, Macbride ; 

 Delaware, Commons (f) ; Pennsylvania, Sumstine, Murrill ; West 

 Virginia, Nuttall ; Virginia, Murrill ; Ohio, Morgan. 



Species inouirendae 



Polyporus fimbriporus Schw. Trans. Am. Phil. Soc. 4 : 155. 

 1834. Collected on small fallen chestnut' limbs at Bethlehem, 

 Pennsylvania, and described as follows : 



" P. subtriangularis, substantia carnosa, aquose spongiosa, 

 omnino P. mollis. Pileo glabro, pallido, siccitate ruguloso et con- 

 tracto volumine. Poris albescentibus, rotundis, minutis, circum 

 apices mire fimbriato ciliatis. Diametro unciali. Tempore sicco 

 indurescit." 



The above description agrees in many ways with young stages 

 of A. Pilotac, but this latter species has never been collected on 

 small limbs, its usual hosts being much-decayed chestnut or oak 

 logs. The remains of the type specimens at Philadelphia also 

 show a close relationship to A. Pilotac. 



Polyporus castanophilus Atk. Jour. Myc. 8: 118. 1902. 

 Collected by Atkinson at Blowing Rock, North Carolina, Sep- 

 tember 1 90 1 (no. 10072 Cornell Univ. Herb.), and thus 

 described : 



" Pileus dimidiate, sessile, convex, 10-20 cm. broad, 10-12 cm. 

 long, zonate, more or less rugose and sometimes tomentose toward 

 the base, reddish yellow to reddish orange, flesh yellowish, zoned, 

 soft and watery but tough and drying somewhat shrunken but 

 hard and firm. Tubes plane, medium size, dissepiments thin, 

 edges very finely fimbriate, chrome yellow to bright orange, dry- 

 ing dull yellow or reddish brown, tubes 6-8 mm. long. Basidia 

 clavate, 15-20 x 4-5 n, 4-spored. Spores white, hyaline, smooth, 

 with a few granules, 3 x 2 /i. On decorticated and one-half rotted 

 chestnut logs." 



