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296 Polyporeæ, Poria.<br />

rum altera crassior, margine magis membranaceo; poris 1/7 mm.<br />

diam., altera poris 1/6 mm.<br />

15. Poria niphodes B. et Br. Journ. Linn. Soc. XIV, p. 55. - Tota<br />

resupinata, nivea, margine angustissimo porisque irregularibus pulverulentis.<br />

Hab. ad tigilla et ligna in regione australi insulæ Ceylon<br />

(THWAITES). - Pluripollicaris, dilute alba, ex ætate subochracea;<br />

pori sæpe decurrentes illis Hymenogrammes similes.<br />

b) Poris albis, demun ochraceo-pallidis.<br />

16. Poria vitrea Pers. Obs. I, p. 15, Fr. Syst. Myc, I, p. 381, El.<br />

p. 119, Hym. Eur. p. 577, Berk. Outl. p. 251. P. xylostromeus<br />

Pers. Myc. Eur. 2, p. 112 (fungus siccus). - Effusa, subundulata,<br />

indeterminata, albida, subhyalina, mycelio xylostromeo tenaci separabili;<br />

poris minimis, rotundis, longis, obtusis, integris.<br />

Hab. ad truncos cariosos, prostratos Fagi et Castaneæ in Europa,<br />

Amer. bor. et in trunco carioso putrescente Salicis Humboldtianæ,<br />

Boca del Riachuelo, in Argentina Amer. merid. (SPEGAZZINI).<br />

- Ut plurimæ genuinæ species hujus sectionis rara, sed valdo<br />

insignis poris ob mollitiem quasi carnosis (ceterum excarnis), membrana<br />

tenui Xylostromatis generis Auctt. impositis, sæpe in nodulos<br />

collectis et interruptis. Mycelium sterile: Xylostroma candidum<br />

Pers. Myc. Eur. I, p. 93.<br />

17. Poria hydnophora B. et Br. Journ. Linn. Soc. XIV, p. 54. -<br />

Pulvinata, crassiuscula, determinata margine erecto aculeis brevibus<br />

obtusis sparso.<br />

Hab. ad ligna emortua, Ceylon (THWAITES). - Species singularis<br />

in societate occurrens P. vulgaris, cum qua primo obtutu similitudinem<br />

aliquam præbet: pori 1/4 mm. diam., at in P. vulgari<br />

1/5 mm.<br />

18. Poria tarda Berk. Hook. Journ. 1845, p. 56, Dec. n. 43. - Alba<br />

dein ochracea, mycelio ceraceo, corticiiformi; margine angusto tomentoso;<br />

poris tarde evolutis, parvis, integerrimis.<br />

Hab. in ligno emortuo in Australia (DRUMMOND). - Corticium<br />

molle in memoriam revocat. Pori 250 µ. circ. lati.<br />

19. Poria teberculosa Pers. Obs. I, p. 14, Syn. p. 545, Cooke Praxe.<br />

n. 962. - Albida, tuberculosa, margine inciso subrepando, sat crassa,<br />

10-20 cm. longa, superficie tuberculis magnis difformibus distincta.<br />

5949<br />

5950<br />

5951<br />

5952<br />

5953

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