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64 Polyporeæ, Polyporus.<br />

ma pumila, subpulverulonta, quæ B. pusillus Schrad., Pol. debilis<br />

WalIr. Species admodum variabilis, unde plures species dubiæ propositæ.<br />

Exstat verosimiliter inter has species media, distincta poris<br />

minutis, rotundis, obtusis, cujus typus P. tomentosus Rostk. 4, t.<br />

8, non Fries. Inquirendum, num P. floccipes Rostk. 28, t. 13 et<br />

P. trachypus I. c. t. 14 ad P. brumalem sint reforendi, et ad<br />

P. arcularium P. intermedius Rostk. 4. t. 33 atque ad illius formam<br />

pumilam P. alveolarius 28, t. 15.<br />

33. Polyporus planus Wallr. Fl. Crypt. n. 2943. - Pileis coriaceis orbiculatis<br />

tenuatis utrinque doplanatis, supra stipiteque centrali farcto,<br />

e basi incrassata emergente æquali pallide-fuscis, furfure<br />

parco mox deliquescente adspersis, tubulis brovibus, hyalinis, tenerrimis,<br />

rotundis, albis, apice laceris fimbriatis.<br />

Hab. ad terram sterilem glareosam humectam agri hering.<br />

Tharingiæ in consortio Bæomycis rosei, rarius.<br />

34. Polyporus callochrous Lév. Champ. exot. p. 181. - Pileo carnoso-lento,<br />

convexo, subumbilicato, obsoleto zonato stipiteque elongato<br />

cylindrico denso velutinis fulvis, poris ungulatis, mediis lutescentibus,<br />

dissopimentis obtusis.<br />

Hab. ad truncos oxoticos (locus ignotus). - Affinis Polyporo<br />

brumali. Pileus 8 cm. altus, 1 cm. et ultra latus.<br />

35. Polyporus Weddellii Mont. Cent. VII. p. 34.- Terrostris; pileo<br />

convexo, carnoso, medio umbilicato, concentrice punctato-squamuloso,<br />

luteo-fuliginoso; margine glabro; stipite centrali valido pleno,<br />

basi attenuata, incurviusculo umbrino-nigrescente, intus albo; poris<br />

albis magnis, oblongo-quadratis, concentrice dispositis, dissepimentis<br />

crassis, mediis 4 mm. profundis, centralibus haud decurrentibus<br />

marginalibusque sensim minoribus.<br />

Hab. ad terram in silvis umbrosis humidisque, Calabranca Brasiliæ<br />

(WEDDELL).<br />

36. Polyporus scabriceps B. et C. Journ. Linn. Soc. X, p. 305. -<br />

Pileo carnoso irregulari, scabroso, umbrino, margine invuluto; stipite<br />

brevi scabro; poris parvis, irregularibus, pallidis.<br />

Hab. ad ligna corrupta Cubæ (C. WRIGHT). - Pileus 5 cm.<br />

latus; stipes 12 mm. longus, 6 mm. crassus; pori 1/4 mm. lati,<br />

dissopimentis tenuibus, dentatis.<br />

37. Polyporus penetralis Smith Journ. Botan. 1875, pag. 98, t. 162,<br />

f. 4-8. - Durus demum fragilissimus, parvulus, albidus; pileo suberoso,<br />

tenui, undulato, nitido, leniter strigoso (1/2 mm. diam.),<br />

4886<br />

4887<br />

4888<br />

4489<br />

4890

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