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FUNGORUM - Acervo Digital de Obras Especiais

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454 Agaricineæ, Leucosporæ, Russula.<br />

Agaricus Bull. t. 579, f, 2, t. 212, Krombh. t. 70, f. 14, 15, Barl.<br />

t. 17. Abnormem lusum sistit Vent. t. 19, f. 1-4: A. adustus Pers.<br />

et Auctt. ex parte, Weinm. p. 35, A. adustus v. crassa Alb. et<br />

Schw. p. 220, Fr. S, M. I, p. 60, Secr. n. 483, A. elephantinus Sow.<br />

t. 36. - Pileo æqualiter carnoso, compacto, umbilicato-<strong>de</strong>presso,<br />

olivaceo-fuligineo, margine inflexo exstrio stipiteque solido, obeso<br />

<strong>de</strong>mum adusto-nigricantibus; lamellis rotundatis, crassis, distantibus,<br />

inæqualibus.<br />

Hab. in silvis Europæ passim. Succus rubens, sed non lactescens,<br />

un<strong>de</strong> caro fracta et lamellæ jam tactu rubentes. Pileus<br />

sæpe rimoso-squamulosus, junior udus, viscidulus, 12 cm. latus; stipes<br />

8 cm. longus, 2½ cm. crassus; sporæ sphæroi<strong>de</strong>æ, papillatæ,<br />

6-7 µ. diam. v. 8-9 6-7.<br />

2. Russula adusta (Pers.) Fr. Epicr. p. 350, Hym. Eur. p. 439, Bern. 1789<br />

Roch. t. 40, f. 1, et 47, f. 2, Agaricus Pers. et Fr. S. M. l. c. ß.<br />

Secr. n. 484, A. nigricans Otto. Krombh. t. 70, f, 7-11, Batt. t.<br />

13, C (ex icone, e <strong>de</strong>scr. ad sq. sect.). - Pileo æqualiter carnoso,<br />

compacto, e <strong>de</strong>presso subinfundibuliformi. margine primo inflexo,<br />

glabro, <strong>de</strong>in erecto, exstrio stipiteque solido, obeso cinereo-fuligineis;<br />

lamellis ex adnato <strong>de</strong>currentibus, tenuibus, confertis, inæqualibus.<br />

Hab. in silvis Europæ et Amer. fœ<strong>de</strong>r, passim. - Pileus 8-16<br />

cm. latus, stipes 2-3 cm. longus; sporæ sphæroi<strong>de</strong>æ, echinulatæ, 7-9<br />

µ. diam v. 10 7-8. Exsuccus, carne immutabili, <strong>de</strong>mum adustus, non<br />

vero totus nigricans. Lamellæ ex albo sordidæ. - Russula adusta<br />

Krombh. t. 70, f. 12-13 vi<strong>de</strong>tur species distincta, R. <strong>de</strong>licœ simillima<br />

quoad staturam, sed diversa pileo «palli<strong>de</strong> fusco» (cervino<br />

ex icone), carne cinereo-grisea.<br />

3. Russula <strong>de</strong>nsifolia Secr. Mycogr. I, p. 476, Luc. Suit. Bull. t. 43, 1790<br />

Pat. Tab. 319, Gill. C. Fr. ic. - Pileo carnoso, compacto, convexo<br />

<strong>de</strong>in <strong>de</strong>presso, .margine inflexo, levi, estrio, albido, <strong>de</strong>mum<br />

fuligineo, griseo v. brunneo centroque nigricante; stipite brevi,<br />

cylindrico, levi, leviter pruinoso, albido <strong>de</strong>in griseo, <strong>de</strong>mum nigricante;<br />

carne alba, rupta rosea <strong>de</strong>mum nigra; lamellis adnato-<strong>de</strong>currentibus,<br />

inæqualibus, albis v. subroseis.<br />

Hab. ad terram in Helvetia et Kew Gar<strong>de</strong>ns Britanniæ.<br />

R. nigricanti et adustœ affinis. Sporæ 7-8 µ. d., muriculatæ.<br />

4. Russula albo-nigra (Krombh.) Fr. Hym. Eur, p. 440. - Agaricus 1791<br />

albo-niger Krombh. p. 27, t. 70, f. 16, 17. Pileo carnoso, convexo-plano,<br />

medio <strong>de</strong>presso, <strong>de</strong>mum infundibuliformi, viscoso, al-

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