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10 Polyporeæ, Boletus,<br />

mm. latus. Magnus, elegantissimus, pilei squamæ, disco excepto,<br />

latæ et distantes.<br />

24. Boletus Curtisii Berk. North Am. Fung. n. 109. - Pileo hemisphæ- 4663<br />

rico, viscoso aureo-luteo; stipite stramineo tenui, sursum attenuato,<br />

polito, reticulato; poris umbrinis, demum fulvis, liberis; sporis fer-<br />

rugineis utrinque leniter attenuatis.<br />

Hab. in pinetis, Carol. inf. Amer. fœder. (CURTIS). - Pileus<br />

21/2 cm. v. ultra latus, hemisphæricus, viscidus; stipos 5-6 cm. lon-<br />

gus, 4-6 mm. crassus, apice attenuatus, stramineus exannulatus.<br />

25. Boletus albus Peck 23 Rep. of the Bot. 1872, p. 130. - Pileo 4664<br />

carnoso, glabro, convexo, udo viscido, albo; tubulis planis, cohæ-<br />

rentibus, subrotundis, mediocribus, ochraceo-flavis; stipite æquali<br />

v. leniter deorsum attenuato, albo, rubescenti-tincto, punctato, non<br />

annulato, apice leviter reticulato; carne alba.<br />

Hab. in silvis Adirondack Mountains Amer. bor.- A Bol.<br />

collinito pileo albo, tubulis majoribus aliterque coloratis differt.<br />

26. Boletus Clintonianus Peck 23 Rep. p. 128, t. 5, fig. 1-5. - Pi- 4665<br />

leo crasso, convexo, udo viscido, glabro, nitido, badio rubro vel<br />

castaneo; stipite æquali, valido, solido, annulato, subconcolore, ple-<br />

rumque rubro maculato, apice subtiliter reticulato, tubulis subpla-<br />

nis, adnexis, subdecurrentibus, minutis, subrotundis, pallide luteis,<br />

dein fuscis; annulo carneque luteis.<br />

Hab. in silvis, North Elba et Center prope Albany New York<br />

Amer. bor. - Statura 10-15 cm. adæquans; pileus 8-13 cm. la-<br />

tus; stipes 13-19 mm. crassus. Plerumque cæspitosus. In specimi-<br />

nibus majoribus pileus incisionem submarginalem seu concavita-<br />

tem habet.<br />

27. Boletus tridentinus Bres. Fungi Trident. p. 13, tab. XIII. - Pi- 4666<br />

leo convexo-plano, viscoso, lateritio-rubiginoso, squamis Subcom-<br />

pressis secedentibus concoloribus variegato, 6-10 cm. lato; tubulis<br />

flavo-virescentibus, stipiti adnatis vel subdecurrentibus; poris angu-<br />

latis aut sinuato-oblongis amplis, lateritio-rufescentibus; stipite<br />

farcto, subæquali vel leviter basi incrassato, concolori, ætate ex-<br />

pallente supra annulum album, fugacem cribroso, infra subsqua-<br />

muloso squamulis compressis, 5-9 cm. longo, 1-2 cm. crasso; spo-<br />

ris flavo-viridibus, ellipticis, uniguttulatis.<br />

Hab. in silvis coniferis in tota regione tridentina.- Affinis B.<br />

flavo. Mycelium fibroso-reticulatum, tenax, rubiginosum. Caro lateritia,<br />

fracta subrubescens, odore et sapore grato.<br />

28. Boletus amarellus Quél. Supplem, 1 1, p. 12, B. piperatus Barla 4667

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