Public Description of Lactarius quietus var. incanus Hesler & A.H. Sm.

Title: Public Description (Default)
Name: Lactarius quietus var. incanus Hesler & A.H. Sm.
View: public
Edit: public
Version: 1

Descriptions: Create
 Public Description (Default) [Edit]

Description status: Unreviewed

Taxonomic Classification:

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

General Description:

Cap: 3-11 cm; convex, becoming flat or shallowly vase-shaped; dry; smooth or uneven and somewhat rugged; when young often with a whitish dusting; usually zoned with shades of dark reddish brown, but sometimes becoming vaguely zoned or without zones—or becoming less zoned with age.

Gills: Attached to the stem or running slightly down it; close or nearly crowded; whitish at first, developing cinnamon stains and discolorations, but not staining from the milk.

Stem: 4-14 cm long; up to 1.5 cm thick; more or less equal; smooth; without potholes; when young with a white dusting; colored like the cap, but paler; darkening with age from the base upward; hollowing.

Flesh: Whitish to pinkish; not changing when sliced, or staining slowly pinkish.

Milk: White at first, becoming watery with age; sometimes slightly yellowish; not changing on exposure; not staining tissues; often staining white paper yellow overnight.

Odor and Taste: Odor strongly fragrant, or not distinctive; taste mild or slightly acrid.

Chemical Reactions: KOH olive on cap surface.

Spore Print: White or pale yellowish.

Spores 6-8 × 5-7 µ; broadly ellipsoid; ornamentation 0.5-1.0 µ high, as amyloid warts and scattered ridges that occasionally form zebroid patterns but do not form reticula. Pleuromacrocystidia scattered to abundant; fusoid; to about 70 × 10 µ. Cheilocystidia scattered to abundant; fusoid; to about 40 µ long. Pileipellis a trichoderm or oedotrichoderm.


Eastern North America

Mycorrhizal with oaks, and perhaps with other hardwoods in oak-based forests; growing alone, scattered, or gregariously; summer and fall.

Look Alikes:

Lactarius mutabilis, Lactarius frustratus


Kuo, M. (2011, March). Lactarius quietus var. incanus Retrieved from the MushroomExpert.Com Web site:


Current Name:
Lactarius quietus (Fr.) Fr., Epicr. syst. mycol. (Upsaliae): 343 (1838) [1836-1838]

Agaricus quietus Fr., Syst. mycol. (Lundae) 1: 69 (1821)
Galorrheus quietus (Fr.) P. Kumm., Führ. Pilzk. (Zerbst): 126 (1871)
Lactarius quietus var. incanus Hesler & A.H. Sm., North American Species of Lactarius (Ann Arbor): 478 (1979)
Lactarius quietus (Fr.) Fr., Epicr. syst. mycol. (Upsaliae): 343 (1838) [1836-1838] var. quietus
Lactarius quietus var. unicolor Fr., Monogr. Hymenomyc. Suec. (Upsaliae) 2(2): 170 (1863)
Lactifluus quietus (Fr.) Kuntze, Revis. gen. pl. (Leipzig) 2: 856 (1891)

Description author: walt sturgeon (Request Authorship Credit)

Created: 2014-01-22 09:05:48 PST (-0800) by walt sturgeon (Mycowalt)
Last modified: 2014-01-22 09:05:48 PST (-0800) by walt sturgeon (Mycowalt)
Viewed: 6 times, last viewed: 2018-01-13 14:47:09 PST (-0800)