332 llymenomycetiP, Polyporacefe, Porin. 



formi pr;i3diti3, 6-7 in quoque mm., acie crassa, integra; sporis 

 subglobosis, lovibus, hyalinis, 3,5-4,5 [j,. diam. ; hypliis ferrugineis, 

 3 [).. cr.. ; cystidiis nuUis. 



Hab. ad truncos dejectos Pruni ponsylvauicre prope 

 Camp Sunday, Medford, Piscataquis County, Maine, America bor. 

 (W. A. Murrill). 



25. Poria tsugina (Murrill) Sacc. et Trott., Fomitoporia tsugina Mur- 1283 

 ril, North Amer. Fl., v. IX, Pt. I (1907) pag. 9. — Late efifusa, 

 irregularis, adnata, denique secedens, rigida, solidiuscula, 5-10 mm. 



cr. ; margine tenui, adnato, irregulari, ambitu anguste sterili, ful- 

 vo-ferrugineo, minute tomentoso; contextu vere conspicuo, ferru- 

 gineo, piloso; hymenio plano v. concavo, subintEquali, e ferrugi- 

 neo subfuliginoso, pruina grisea suflfuso; tubulis indistincte stra- 

 tosis, quoque strato 2-4 mm. longis, parce albido-farctis, intus 

 ferrugineis, ore circulari pneditis, 4-5 in quoque mm., acie crassa, 

 integra; sporis subglobosis, levibus, hyalinis, 6-8 jj,. diam.; hyphis 

 ferrugineis, 3-4 [j.. cr. ; cystidiis nullis. 



Hah. ad truncos emortuos Tsugse, prope Hebron, New Hamp- 

 shire, Amor. bor. (Percy Wilson). 



26. Poria Maxoni (Murrill) Sacc. et Trott., Fomitoporia Maxoni Mur- 1284 

 rill, North Amer. Fl., IX, Pt. I (1907) p. 11. — Effusa, insepa- 

 rabilis, angusta, rigida, lignea, 5-8 cm. long., 5 mm. cr , plerum- 

 que in rimis corticalibus sita ; margine tenui, adnato, irregu- 

 lari, late sterili, minute tomentoso, ferrugineo; contextu conspi- 

 cuo, fulvo; hymenio distincte sed inaequaliter stratoso, lucenti, se- 

 cundum lucis colorem mutante ex isabollino-avellaneo umbrino; 

 tubulis 1-2 mm. long. in quoque strato, albido-farctis, intus avel- 

 laneo-isabellinis, ore e subcirculari subangulari, regulari praiditis, 



6 in quoque mm., acie crassiuscula, firma, integra; sporis subglo- 

 bosis, levibus, hyalinis, numerosis, 5-6 [j.. diam. ; hyphis ferrugi- 

 neis 3-4 [j.. cr. ; cystidiis nullis. 



Hdb. ad truncos prope Sancto Domingo de Van Masco, Costa 

 Rica Amer. centr. (W. R. Maxon). 



27. Poria jamaicensis (Murrilli Sacc. et Trott., Fomitoporia jamai- i28B 

 censis Murrill, North Amer. FI., v. IX, Pt. I (1907) p. 11. — 

 Effusa, ellipsoidea, dein secedens, rigida, 5 mm. cr. ; margine te- 

 nui, adnato, ambitu anguste sterili, ex isabellino fulvo, fere gla- 

 bro, subintegro; contextu inconspicuo, fulvo; hymenio convexo, 

 aequali, ex isabellino umbriuo, distincte 3-4 stratoso, stratis septo 

 tenui fulvo scparatis; tubulis in quoquc strato 2 mm. long., al- 



