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62 Polyporeæ, Polyporus.<br />

crassato-bulboso, concolori, nudo; poris non decurrentibus pro ra-<br />

tione amplis ore obtuso albis.<br />

Hab. in collibus siccis circa Mascara Algeriæ, arena sepultus<br />

(DURIEU). - Totus fungus unicolor, fragilis, centimetro parum<br />

major; pileus cum stipite tignosus, convexo-hemisphæricus 10-12<br />

mm. latus; stipes 10-12 mm. long., 1 mm. medio crass. A P. pa-<br />

chypode Mont. stipite centrali, poris obtusis, haud denticulatis<br />

satis superque differt.<br />

27. Polyporus griseus Peck 26 Rep. p. 68. - Pileo carnoso, firmo<br />

convexo, sæpe irregulari, glabro vel minuto adpresse sericeo to-<br />

mentoso, sicco, griseo; stipite centrali, crasso, brevi, concolore;<br />

poris minutis, brevibus, inæqualibus, subangulatis; carne roseo-<br />

grisea.<br />

Hab. in umbrosis, Copake, New York Amer. fœder: - Statu-<br />

ra 5-8 cm. metiens; pileus 8-13 cm. latus; stipes 13-21 mm. cras-<br />

sus. Pori quandoque decurrentes atque parietes seu dissepimenta<br />

acie incrassata.<br />

28. Polyporus popanoidos Cooke Grev. IX, p. 97. - Pileo carnoso,<br />

fragili, albo, glabro, tuberculoso, magno; stipite laterali, brevi,<br />

crasso, solido; margine incurvo flexuoso; paris curtis, minutis,<br />

integris, albo-pallescentibus.<br />

Hab. ad terram (?) in insula Mauritii. - Pileus 22 cm. lat.,<br />

centro 2,5 cm. cr., substantia P. sulphurei; stipes lateralis 5 cm.<br />

long., 2,5 cm. cr., forte e ligno putri oriundus.<br />

29. Polyporus pseudoboletus Speg. Fungi Guar. Pug. I, p. 30. -<br />

Coriaceo-lentus, terrestris; pileo hemisphærico-explanato 5-9 cm.<br />

diam., centro, præcipue in juventute, profunde umbilicato, glabro,<br />

concentrice irregulariterque zonato-sulcato, obsoletissime et laxe<br />

radiato-ruguloso, primo castaneo-fuseo, dein sordide fuseo-subatro<br />

opaco, cute tenui, carne fibroso-floccosa, pallide forruginea vel<br />

subfulva, tenui 2 mm. crasso; margine integro non vel vix repan-<br />

dulo, obtusulo, fertili; poris compactiusculis integris æqualibus ore<br />

parvulo, 200-250 µ. diam., rotundato-angulato, dissepimentis te-<br />

nuibus, aridis flaccidulis, fusco-cinnamomeis, sæpius abbreviatis,<br />

1,5-3 mm. long.; stipite brevi tereti, lignoso, 4-5 cm. longo, 6-8<br />

mm. crasso, carne alba, intus cavo, cute crustacea, atra, opaca, prui-<br />

na arcte adnata sordide testacea obducto, basi longiuscule 2-3 cm.<br />

longo, 5-7 mm. crasso, noduloso-radicato; basidiis et sporis non<br />

visis.<br />

Hab. in detritis terreis in silvis subvirgineis prope Guarapi -<br />

4880<br />

4881<br />

4882

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