When: 2008-10-17

Collection location: Marconi Beach, Wellfleet, Massachusetts, USA [Click for map]

Who: Noah Siegel (Noah)

Specimen available

Spines orange, not white…

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I didn’t even notice that.
By: Noah Siegel (Noah)
2009-10-17 22:37:46 PDT (-0700)

the NEMF foray is going on right now on Cape Cod and this same Hydnellum was collected and we did a little more work on it…

Do you review all your observations on their anniversaries? :)
By: Paul Derbyshire (Twizzler)
2009-10-17 20:50:20 PDT (-0700)
more photos
By: Noah Siegel (Noah)
2008-10-22 20:52:10 PDT (-0700)

Thanks Tom,

It was about 7-11cm wide. I don’t remember seeing any white marginal spines, the three specimens that I have don’t, but they aren’t young.

tricky spines
By: Tom Volk (TomVolk)
2008-10-20 10:47:03 PDT (-0700)

From Sean Westmoreland’s MS thesis on Hydnellum: Hydnellum aurantiacum is a common species that can be recognized by its orange fruiting body, white hymenophore margins, and large spores. The context is also tan-colored with orange tints, becoming orange near the stipe. This species can be confused with other orange Hydnellums, H. earlianum, H. chrysinum, H. caeruleum, and H. aurantile, all of which have smaller spores. Hydnellum earlianum has yellow marginal spines and deep-orange or rusty-red pileus (Baird 1984). Hydnellum chrysinum has orange teeth, whereas H. aurantiacum has white marginal spines. Hydnellum chrysinum has overall smaller fruiting bodies with a pileus width of 2.5—5.6 cm, whereas H. aurantiacum has a pileus width of 3.1—10.1 cm. Hydnellum caeruleum has a white, blue, or brown pileus with purple-blue tints or zone lines in the pileal context. Also, H. caeruleum has rare to occasional clamp connections, which H. aurantiacum lacks.