Public Description of Lactarius areolatus Hesler & A.H. Sm.

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Name: Lactarius areolatus Hesler & A.H. Sm.
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Description status: Unreviewed

Taxonomic Classification:

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


General Description:

Cap: 2-7 cm; convex to bell-shaped, quickly becoming flattened or centrally depressed; moist or dry; bald at first, but soon becoming roughened-scurfy and wrinkled; dark reddish brown to orangish brown when very fresh and young, becoming burnt orange to pinkish brown or orangish brown; the margin becoming lined and/or scalloped.

Gills: Beginning to run down the stem; close or nearly distant; creamy to pale yellowish at first, developing cinnamon spots and eventually discoloring cinnamon; not staining from the milk.

Stem: 2-9 cm long; up to about 1 cm thick; more or less equal; bald; without potholes; colored like the cap, or paler; hollow; dry.

Flesh: Pale orangish to pale cinnamon; brittle; not staining when sliced.

Milk: Watery to whey-like; not staining tissues; not staining white paper.

Odor and Taste: Odor not distinctive—or slightly to strongly fragrant (even a little reminiscent of Lactarius camphoratus); taste mild.

Spore Print: Pale yellowish.

Chemical Reactions: Cap surface olive with KOH.

Spores 6.5-9 × 5-7 µ; subglobose to broadly ellipsoid; ornamentation 0.5-1.0 µ high, as isolated warts and scattered but frequent ridges that do not form consistent reticula. Macrocystidia absent. Pileipellis a hyphoepithelium with terminal elements that tend to inflate and aggregate with maturity.


Diagnostic Description:

Ridged spores will help distinguish it from Lactarius rimosellus.


Distribution:

eastern United States


Habitat:

Mycorrhizal with oaks and with hornbeam; growing scattered or gregariously; summer and fall.


Look Alikes:

Lactarius rimosellus


References:

http://www.speciesfungorum.org/...

Kuo, M. (2011, March). Lactarius areolatus. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/lactarius_areolatus.html


Notes:

Current Name:
Lactarius areolatus Hesler & A.H. Sm., North American Species of Lactarius (Ann Arbor): 515 (1979)


Description author: walt sturgeon (Request Authorship Credit)


Created: 2014-01-22 08:46:06 PST (-0800) by walt sturgeon (Mycowalt)
Last modified: 2014-01-22 08:46:06 PST (-0800) by walt sturgeon (Mycowalt)
Viewed: 4 times, last viewed: 2015-01-25 23:56:37 PST (-0800)