Public Description of Lactarius montanus (Hesler & A.H. Sm.) Montoya & Bandala

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Name: Lactarius montanus (Hesler & A.H. Sm.) Montoya & Bandala
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Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Russulales
Family: Russulaceae

General Description:

Cap: 3-11 cm; convex with an incurved margin when young, becoming flat or shallowly depressed; sticky when very fresh but soon dry; bald; finely rugged; brownish lilac to lilac brown or brownish purple or purplish gray; without concentric zones of color, or occasionally with faint zones.

Gills: Broadly attached to the stem or beginning to run down it; close; whitish to creamy; stained lilac to purple (eventually brownish) by the milk where damaged.

Stem: 3-10 cm long; 1-3 cm thick; club-shaped, becoming more or less equal with maturity; dry or slightly sticky when fresh; without potholes; whitish to purplish buff; often stained yellow in places, especially near the base; bruising and discoloring lilac to purple.

Flesh: White; staining lilac when sliced.

Milk: White; copious; staining tissues lilac to purple.


Ecology: Mycorrhizal with conifers and with willows, in wet montane ecosystems; summer and fall; Rocky Mountains, Cascade Mountains, and the Sierra Nevada.


(Hesler & Smith, 1979) Montoya & Bandala, 2003.

Description author: Caleb Brown (Request Authorship Credit)