Hydnum repandum L.: Fr.
Syst. mycol. 1: 400. 1821.

Common Name: Hedgehog

Synonym: Dentinum repandum (L. : Fr.) S. F. Gray

• Pileus

  Cap 2-12 cm broad, convex, becoming nearly plane, disc sometimes depressed; margin inrolled at first, lobed to undulate; surface dry, smooth to slightly scaly, cream to buff-orange, bruising to orange-brown; flesh thick, pale-buff, brittle, bruising buff-orange; odor and taste mild.

• Hymenophore

  Teeth 0.4-0.6 cm long, brittle, cream-colored, bruising orange-brown, sometimes decurrent.

• Stipe

  Stipe 2-7 cm tall, 1-2.5 cm thick, equal to enlarged at the base; attachment central to eccentric; surface dry, smooth, cream to buff-yellow, bruising orange-brown; veil absent.

• Spores

  Spores 6.5-8.5 x 6-8 µm, nearly round, smooth. Spore print white.

• Habitat

  Scattered to gregarious under conifers, occasionally with hardwoods; in our area common under Bishop Pine (Pinus muricata) and Douglas Fir (Pseudotsuga menziesii). Fruiting from mid-winter to early spring.

• Edibility

  Edible and excellent, although they tend to be bitter unless well cooked.

• Comments

  Hydnum repandum fruits late in the Bay Area mushroom season, often not until after the New Year. Its pale-buff to buff-orange fruiting body resembles Cantharellus cibarius, but the latter is yellower in color, has ridges, not spines on the lower cap surface and generally grows with hardwoods like Quercus agrifolia, not conifers. Hydnum umbilicatum is a closely related species, smaller in size, the cap having a small, central pit.

• References

  Coker, W.C. & Beers, A.H. (1951). The Stipitate Hydnums of the Eastern United States. The University of North Carolina Press: Chapel Hill, NC. 211 p.
  Hall, D. & Stuntz, D.E. (1971). Pileate Hydnaceae of the Puget Sound Area. I. White-Spored Genera: Auriscalpium, Hericium, Dentinum and Phellodon. Mycologia 63(6): 1099-1128.
  Mass Geesteranus, R.A. (1971). Hydnaceous Fungi of the Eastern Old World. North Holland Publishing Company: Amsterdam, Netherland. 175 p.
  Pegler, D.N., Roberts, P.J. & Spooner, B.M. (1997). British Chanterelles and Tooth Fungi. Royal Botanic Gardens: Kew, England. 114 p.
  Smith, A.H. (1949). Mushrooms in their Natural Habitats. Sawyer's Inc: Portland, OR. 626 p.

• Other Descriptions and Photos
  • Dimitar Bojantchev: Hydnum repandum (CP)
  • Dimitar Bojantchev: Hydnum repandum (CP)
  • Tom Duffy: Hydnum repandum (CP) -- these sporocarps are darker than normal
  • Boleslaw Kuznik: Hydnum repandum (CP)
  • Taylor F. Lockwood: Hydnum repandum (CP) -- extreme closeup of the hymemophore ("teeth")
  • Na Grzyby: Hydnum repandum (D & CP)
  • Associació Micològica Joaquim Codina: Hydnum repandum (D & CP)
  • Pilzgalerie.de: Hydnum repandum (CP)
  • R. A. Chilton: Hydnum repandum (CP)
  • Pilze, Pilze, Pilze: Hydnum repandum (CP)
  • Mushroom Observer: Hydnum repandum (CP)
  • Arora (1986): p. 618 (D), plates 161, 162 (CP) [Dentinum repandum]
  • Arora (1991): p. 203 (D & CP)
  • Breitenbach & Kränzlin (vol. 2): sp. 282 (D, I, & CP)
  • Fischer & Bessette: p. 108 (D & CP)
  • Jordan: p. 87 (D & CP)
  • Lincoff: p. 428 (D), plate 455 (CP) [Dentinum repandum]
  • McKenny et al.: p. 171 (D), p. 172 (CP)
  • Miller: sp. 336 (D & CP) [Dentinum repandum]
  • Phillips: p. 273 (D & CP)
  • Smith: sp. 27 (D & CP) [Dentinum repandum]
  • Smith & Weber: sp. 40 (D & CP) [Dentinum repandum]
  
  

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