Clitocybe albirhiza Bigelow & Smith
Mycologia 54: 498. 1962.

Common Name: none

• Pileus

  Cap 2.0-9.0 cm broad, convex, expanding to plane, sometimes centrally depressed to infundibuliform in age; margin incurved, then decurved, at times wavy to upturned; surface hygrophanous, cinnamon-brown to butterscotch-brown overlain with a whitish sometimes zonate canescence; cap surface at maturity more or less glabrous to finely cracked, uniformly buff to dingy-tan; context thin, 1.0-2.0 mm, soft, pallid, unchanging; odor, indistinct; taste slightly bitter to astringent.

• Lamellae

  Gills notched to subdecurrent, close, cream-colored when young, becoming buff-brown, sometimes intervenose; lamellulae in three to four series.

• Stipe

  Stipe 2.0-6.0 cm long, 0.5-1.2 cm thick, more or less equal, cartilaginous, hollow to stuffed; surface when young hoary, white, over a buff-brown ground color, eventually appressed fibrillose; conspicuous white rhizomorphs at the base; partial veil absent.

• Spores

  Spores 5.0-6.0 x 2.5-3.5 µm, elliptical, smooth, thin-walled, inamyloid; spore print white.

• Habitat

  Scattered to clustered in duff of montane conifers; fruiting shortly after snow melt.

• Edibility

  Unknown.

• Comments

  Clitocybe albirhiza is a drab snowbank species recognized by a pale-brown, canescent, often zonate cap and conspicuous white rhizomorphs at the base of the stipe. Its equally common relative, Clitocybe glacialis, is more robust but also has a canescent cap. The cap, however, is silvery-grey when young, not zonate, and the stipe has white mycelium rather than rhizomorphs at the base. Other spring fruiting montane Clitocybes include Clitocybe squamulosa, and Clitocybe inversa. Clitocybe squamulosa is recognized by a pinkish-tan to orange-brown, infundibuliform cap, squamulose at the disc and fibrillose at the margin, while Clitocybe inversa has a pinkish-tan, more or less glabrous, infundibuliform cap.

• Other Descriptions and Photos
  • Fred Stevens: Clitocybe albirhiza (CP)
  • Michael Wood: Clitocybe albirhiza (CP)
  • Fungi of Saskatchewan: Clitocybe albirhiza (CP)
  • Arora (1986): p. 161 (D)
  • Phillips: p. 54 (D & CP)
  
  

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