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Nomenclature

Russula albonigra (Krombh.) Fr.
Hymenomyc. eur.: 440. 1874.

≡ Agaricus alboniger Krombh.
Naturgetr. Abbild. Schwämme 9: 27, pl. 70, fig. 16-17. 1845.

≡ Russula nigricans var. albonigra (Krombh.) Cooke & Quél.
Clav. syn. hymenomyc. eur.: 143. 1880 ("1878").

≡ Russula adusta var. albonigra (Krombh.) Massee
Brit. fung.-fl. 3: 52. 1893.

Original diagnosis

Agaricus pileo carnoso, firmo, primum planiusculo aut pulviniformi, late depresso, demum infundibuliformi, undulato, flexuoso, centro niveo, peripheriam versus nigro aut fuligineo-cinereo, glabro, nitido, visci-do; margine sinuato, subinflexo, laevi; lamellis confertis, crassiusculis, inaequalibus, pallide fusco-albis, decurrentibus; stipite brevi, crasso, tereti, basi obtuso, e fusco aut cinereo nigrescente, nudo. Caro primum candida, fracta autem mox profonde cinerea atraque; odor debilis; sapor acidulus, non ingratus.

Typification

Information not available

Description

Photographs

Microscopy

SEM photos

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