Hymenomycetse, Polyporaceee, Poria. 331 



acie integra crassa; sporis globosis, levibus, brunneis, 5-6 \i. long., 

 hyphis ferrugineis, 3-4 [j.. cr. ; cystidiis paucis, fulvis, conoideis, 

 subventricosis, 15-25 [x. long. 



Ilah. ad truncos emortuos prope Alto Cedro, Cuba. (F. S. 

 Earle et W. A. Murrill). 



22. Poria betulina (Murrill) Sacc. et Trott., Fomifoporella befuUna 1280 

 Murrill, North Amer. Fl., v. IX, Pt. I (1907) p. 12. — Late ef- 

 fusa, inseparabilis, rigida, margine irregulari, initio minute tomen- 

 toso et fulvo, dein glabro, demum levi, brunneo v. nigro; con- 

 textu tenui, suberoso, fulvo ; hymenio distincte et pluries stra- 

 toso, 1-3 cm. cr., plano vel parum convexo, umbrino, initio co- 

 lorem mutanti et refringenti, dein castaneo ; tubulis angustis, 2-3 



' mm. long. in quoque strato, partim mycelio albido farctis, ore 

 subcirculari prieditis, 5-6 in quoque mm., acie crassa, obtusa, in- 

 tegra; isporis ovoideis, levibus, fulvis, 4-5 [x. long ; hyphis fulvis, 

 3-4 [X. cr. ; cystidiis fulvis, acuminatis, ventricosis, 10-30 [i. long. 



Hab. ad truncos Betulse in Boarstone Mountain, Piscataquis 

 County, Maine, Amer. bor. (W. A. Murrill). 



23. Poria Earlese (Murrill) Sacc. et Trotter, Fomifoporia Earlece 1281 

 Murrill, North Amer. Fl., v. IX, Pt. I (1907) pag. 9. — Effusa, 

 subcircularis v. elongata et irregularis, inseparabilis, rigida, 4-8 

 mm. cr. ; margine tenui, adnato, angusto, sterili, irregulari, e fla- 



vo ferrugineo; contextu tenui, e ferrugineo fulvo; hymenio con- 

 vexo, plano v. undulato, luce refringenti e flavo-ferrugineo isa- 

 bellino dein pallide-umbrino, indistincte stratoso ; tubulis intus 

 fulvis, mycelio pallide flavido farctis, quoque strato 2-3 [j.. longis, 

 ore subcirculari proeditis, 5-6 in quoque mm., acie subincrassata, 

 integra; sporis globosis, levibus, hyalinis, copiosis, 5-6[j.. cr. ; hy- 

 phis ferrugineis ; cystidiis nuliis. 



Hal). in ramis quercinis dejectis, prope Biloxi Mississippi, 

 Amer. bor. (E. S. Earle). 



24. Poria prunlcola (Murrill) Sacc. et Trott., Fomitoporia prunicola 12S2 

 Murrill, North Amer. FI. v. IX, Pt. I (1907) p. 9. — Late eflfusa, 

 plura metra demum extensa, inseparabili, rigida, 3-6 mm. cr. ; 

 margine tenui, adnato, determinato, raro secedenti, subglabro, ste- 

 rili, e luteo fulvo, integro v. undulato; contextu conspicuo, fulvo; 

 hymenio sequali v. undulato, e ferrugineo atro-fulvo, dein albo- 

 fulvo, dein albo-cinoreo, demum vetustate umbrino-nigro; tubulis 

 indistincte stratosis, albo-farctis, intus atro-fulvis, quoque strato 



1-2 mm. longis, plerumque obliquis, ore circulari, minuto, puncti- 



