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Nomenclature

Lactarius vietus (Fr.: Fr.) Fr.
Epicr. syst. mycol.: 344. 1838.

Agaricus vietus Fr. : Fr.
Syst. mycol. 1: 66. 1821.

Galorrheus vietus (Fr.: Fr.) Fr.
Stirp. agri femsion. (III): 57. 1825.

Lactifluus vietus (Fr.: Fr.) Kuntze
Revis. gen. pl. 2: 857. 1891.

Taxonomic synonyms:

= Lactarius paludestris Britzelm., Ber. Naturwiss. Vereins Schwaben Neuburg 31: 174. 1894.  — Lactarius vietus var. paludestris (Britzelm.) Killerm., Denkschr. Bayer. Bot. Ges. Regensburg 19, n.f. 13: 80. 1933.

= Lactarius parvus Peck, Rep. (Annual) New York State Mus. Nat. Hist. 29: 44. 1878.  — Lactifluus parvus (Peck) Kuntze, Revis. gen. pl. 2: 857. 1891.

= Lactarius trivialis var. gracilis Peck, Rep. (Annual) Trustees State Mus. Nat. Hist., New York 38: 121. 1885.

= Lactarius varius Peck, Rep. (Annual) Trustees State Mus. Nat. Hist., New York 38: 126. 1885.  — Lactifluus varius (Peck) Kuntze, Revis. gen. pl. 2: 857. 1891.

Original diagnosis

pileo tenui laevi subviscoso azono livido expallente, lamellis lacteque albidis, stipite subcavo fragili. Gled. p. 103. d.
Huc potissimum A. acris Schum. p. 343. Inodorus, sapore acri-nauseoso. Lac album, dein subgriseum. Stipes glaberrimus, pileo concolor, junior farctus. Pileus leviter carnosus, subinde umbonatus, semper opacus. Variat colore incarnato-livido et albido; latitudine 1-5 unc.; forma regulari et undulto-lobata. Lam. tenues, confertae. Varietates non paucae. In betuletis, populetus dumetisque humidis muscosis, vulgaris. Aug.-Nov. (v. v.)

Typification

Information not available

Description

Photographs

Microscopy

SEM photos