Lactarius pallescens Hesler & Smith
N. Amer. Sp. of Lactarius, p. 323. 1979.

Common Name: none

• Pileus

  Cap 5-11 cm broad, convex the margin at first incurved, becoming nearly plane at maturity, the disc slightly depressed; surface viscid when moist, varnished when dry, smooth, sometimes faintly zoned, pallid, then pale grey, finally pale greyish-brown; flesh white, moderately thick, bruising lilac-purple when injured; odor, of "mushroom;" taste, mildly peppery; cuticle ochraceous in 6% KOH.

• Lamellae

  Gills adnate to subdecurrent, moderately broad, close, pallid becoming cream-buff, the edges ochraceous at maturity; latex white, drying purple-brown, discoloring the gills lilac-purple.

• Stipe

  Stipe 4-8 cm tall, 1.2-2.0 cm thick, more or less equal, solid, becoming partially hollow at maturity; surface viscid when moist, glazed when dry, pallid; flesh (cortex) discoloring lilac when cut, the core unchanging; veil absent.

• Spores

  Spores 9-10 x 7-8 µm, broadly elliptical, partially reticulate, the ornamentation amyloid; spore print white to creamy.

• Habitat

  Scattered in hardwood/conifer woods; fruiting from early to mid-winter.

• Edibility

  Unknown.

• Comments

  Lactarius pallescens var. pallescens is characterized by an extremely viscid, (when moist) pallid to pale grey or greyish-brown cap, and white latex which stains the gills lilac. Lactarius uvidus var. uvidus is similar but is somewhat darker, not as viscid and the cap cuticle stains green in KOH. Lactarius uvidus var. uvidus is uncommon in California.

• References

  Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
  Methven, A.S. (1997). The Agaricales (Gilled Fungi) of California. 10. Russulaceae II. Lactarius. Mad River Press: Eureka, CA. 79 p.
  Methven, A.S. (1998). Lactarius in California and Beyond: Introduction to Subgenera and Species of Lactarius in California. Privately Published: Charleston, IL. 22 p. (PDF)
  Hesler, L.R. & Smith, A.H. (1979). North American Species of Lactarius. University of Michigan Press: Ann Arbor, MI. 841 p. (PDF)
  Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.

• Other Descriptions and Photos
  Main Photo
  • Fred Stevens: Lactarius pallescens (CP)
  • Michael Wood: Lactarius pallescens (CP)
  • Michael Wood: Lactarius pallescens (CP) — closeup of gill showing the purple stains
  • MICH Fungal Bioinformatics Project: Lactarius pallescens (D & I)
  • Mushroom Observer: Lactarius pallescens (CP)
  • Hesler & Smith (1979): p. 323 (D), plates 46-47 (P), fig. 111, 225 (I)
  • Methven: p. 37 (D)
  
  

  (D=Description; I=Illustration; P=Photo; CP=Color Photo)