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Nomenclature

Lactarius alpinus Peck
Rep. (Annual) New York State Mus. Nat. Hist. 27: 96. 1875.

Lactifluus alpinus (Peck) Kuntze
Revis. gen. pl. 2: 856. 1891.

Taxonomic synonyms:

= Lactarius pusillus Bres., Icon. mycol. 8: pl. 395, 2. 1929.

= Lactarius subalpinus Kühner, Bull. Soc. Mycol. France 44: 379. 1928.  — Lactarius kuehneri Joss., Encyclop. Mycol. (Agaricales II) 20: 22. 1952.  — Lactarius alpigenes Kühner, Fl. Analyt. Champ. Supér. [IF]: 478. 1953.

Original diagnosis

Pileus fleshy, dry umbilicate or centrally depressed, tomentose-squamulose, ochraceous or tawny yellow; lamellae close, yellowish-ochraceous; stem subequal, sloid, whitish or pallid: milk white, unchangeable, taste acrid.
Plant about 2' high, pileus 1' broad, stem 2"-3" thick.
Thin soil covering rocks. Summit of Haystack Mt., at an altitude of about 5,000 ft. Aug.
Only three specimens were found. I have seen no other Lactarius on the high summits of the Adirondacks.

Typification

Holotypus: Peck (NYS)
North America: United States: New York, Haystack Mt.

Published type studies: Hesler & Smith (1979), N. Amer. Spec. Lactarius: 497

Description

Photographs

Microscopy

SEM photos