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Polyporeæ, Boletus. 21<br />

cante; sporis anguste ellipticis, 10 m. longis; carne læte flava, im-<br />

mutabili, sapore grato.<br />

Hab. in silvis patentibus, Sandlake Amer. bor. - Gregarius;<br />

pileus 5 cm. lat.; stipes 8-12 mm. cr. Affinis B. sulphureo.<br />

c) Subpruinosi. Fr. Tubuli stipiti adnati, latescentes. Stipes æqualis, levis,<br />

non bulbosus neque reticulatus. Pileus glaber, sed sæpius pruinosus. - Plures<br />

species a R ostkowio tantum lectæ et minus notæ.<br />

73. Boletus Barlæ Fr. Hym. Eur. p. 504, B. pruinosus Barla p. 64,<br />

t. 32, f. 1-4 nec Fr. - Pileo e pulvinato plano, velutino-prui-<br />

noso, sicco, eIeganter sanguineo («laccato-vinato»); stipite cor-<br />

ticato, subcostato, concolore, sursum attenuato, luteo, intus spon-<br />

gioso cavove, carne luteola, dissecta laccato-rubra; tubulis sub-<br />

decurrentibus, primo luteis, poris subirregularibus, inæqualibus.<br />

Hab. in silvis Castaneæ Italiæ. - Pulcherrimus, distinctissimus,<br />

stipitis intus sublacunosi fabrica ad B. cyanescentem acce-<br />

dens; pori subinde virentes; sapor ingratus.<br />

74. Boletus versicolor Rostk. t. 10, Fr. Hym. Eur. p. 504. - Pileo<br />

e convexo plano, sicco, levi. glabro, pulverulento, sanguineo-ru-<br />

bro; stipite solido, firmo, levi, subæquali, concolore, basi luteo;<br />

tubulis postice rotundato-adnatis, luteis, poris amplis, angulatis.<br />

Hab. in fagetis Germaniæ borealis. - Pileus circ. 8 cm. latus;<br />

stipes 8 cm. et ultra longus ; caro lutea. Similem legit B. chrysen-<br />

teri formam Fries, cujus subspeciem facile crederes. Ob characte-<br />

res in hac grege citandus. Ne cum priore commutetur.<br />

75. Boletus pruinatus Fr. Bolet. p. 9, Epicr. p. 414, Hym. Eur. p, 504,<br />

Berk. et Br. n. 1285, Kickx. p. 241, A. cupreus Schaeff. t. 133?<br />

Bull. t. 393, f. B. C. Secr. n. 32. - Pileo e convexo plano, rigido,<br />

sicco purpurascenti-badio, umbrino-pruinose; stipite firmo, subven-<br />

tricoso, levi, glabro, luteo rubelloque variegato; tubulis adnatis,<br />

flavis, poris minutis, rotundis.<br />

Hab. in pratis, fagetis graminosis Europæ. - Pileus 4-6 cm. latus;<br />

caro alba, sed etiam obsoleto virens v. cærulescens. Icon Schaefferi<br />

habitum bene exprimit, sed stipes dicitur reticulatus, quare Schaefferi<br />

nomen non restituendum.<br />

76. Boletus purpurascens Rostk. t. 8, Fr. Hym. Eur. p. 504. - Pileo<br />

convexo-plano, glabro, sicco, badio-purpureo, margine truncato;<br />

stipite firmo, glabro, deorsum attenuato-radicante, sanguineo-pur-<br />

purascente; tubulis adnatis, elongatis, sordide luteis, tactis virescen-<br />

tibus, poris minutis; sporis subfusoideis griseo-brunneis, 10 5.<br />

4712<br />

4713<br />

4714<br />

4715

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