Observation 53331: Hydnellum P. Karst.

When: 2010-09-19

Collection location: Forest near Elgin St., Pembroke, Ontario, Canada [Click for map]

45.802568° -77.141125°

Who: Paul Derbyshire (Twizzler)

No specimen available

Found in Zone 38 under a jack pine, maple, and birch mix. Maroon cap with cream fringe, lumpy/fused-cones form typical of the genus, brownish spines with pale fringe.

Proposed Names

57% (2)
Recognized by sight: Brown teeth.
50% (3)
Recognized by sight: Young caps with wooly “clouds”.
-11% (2)
Recognized by sight: Noah suggested this for a similar observation.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
What I call ferrugineum
By: Irene Andersson (irenea)
2012-03-25 09:45:30 CST (-0500)

has a much smoother, velvety surface.
According to Eef Arnolds, cumulatum got its name because of the formations on the cap at a young stage that reminds of cumulus clouds, and I haven’t seen this in ferrugineum or peckii. At least what I call peckii – do you have others than peckii and diabolus?

About cumulatum, I’m not confident enough here to “call it that”. It seems more permanently tomentose than I have seen in descriptions, and I don’t know it well enough to be familiar with its variations.

By: Noah Siegel (Noah)
2012-03-25 08:11:39 CST (-0500)

Sorry… I was reading the description of Hydnellum cruentum by mistake…

Irene, why don’t you think this is in the ferrugineum or peckii group?

By: Irene Andersson (irenea)
2012-03-25 04:10:15 CST (-0500)

original description of cumulatum:

Hydnellum cumulatum K. Harrison, sp. nov.
Pileus 3-9 cm latus, connatus, complicates, pileoli numerosi, planus, convexus, vel depresses, spongiosus, hepaticolor; ad marginem tenuis, interdum elevatus, zonatus, tomentosus; caro fibrosa, dura, hepaticolor; odor leviter aromaticus; sapor blandus. Aculeae graciles confertae, hepaticolor. Stipes 2-4 cm longus, 0.5-1 cm crassus, aequalis, vel subclavatus, hepaticolor; caro fibrosa, dura, deorsum spongiosus. Sporae 4-5.5 × 4-5 µm pallide brunneae, subtiliter tuberculatae. Typus: Km 4724. (DAOM 94215 et MICH.,)
Pileus, connate, concrescent, individually 3-9 cm broad, plane, convex, or concave, imbricate, rarely with concentric ridges near margin, spongiose to tomentose, “vinaceous buff” to “avellaneous”, becoming “Hessian brown” or “burnt umber” or darker-almost black when wet; margin thin, elevated, with zone-like growth band, “vinaceous buff” to “avellaneous” to “brick red”; context fibrous, firm “brick red” to “Hessian brown”, odor slightly aromatic, taste mild. Spines fine, short, close, “liver brown”, becoming darker, not changing color when bruised (but rather mature when collected). Stipe 2-4 × 0.5-1 cm equal to subclavate, very little surface showing, concolorous with pileus to darker; context hard, fibrous, “brick red” to almost black; a small amount of spongiose tissue around the base.
Spores 4-5.5 × 4-5 µm, colored, subglobose, thin-walled, finely tuberculate (almost appearing echinulate) with prominent mucro. Basidia 5-7 × 20 µm, sterigmata up to 4 µm fine. Hyphae in the spines 2.5-3 µm, parallel and flexuous. Spongious tissue of interwoven hyphae at the surface, mostly 3-5 µm; no reaction in Melzer’s solution but the KOH reaction was typical of stirps velutinum. Habit, habitat, and distribution: Solitary to gregarious in connate masses, appearing sessile in the duff. On hillsides in mixed stands of mature Pinus resinosa Ait. and Tsuga canadensis (L.) Carr, found on the edges of small hollows and in depressions around exposed roots, in unused rodent burrows and partly hidden by duff. Kings and Annapolis Counties, Nova Scotia.

Not cumulatum
By: Noah Siegel (Noah)
2012-03-25 00:35:39 CST (-0500)

That has pale gray to grayish-brown flesh “with tints of lilac, darker downwards in
the stem, zonate with bluish bands” (Harrison)

This looks like Hydnellum ferrugineum, or possibly H. peckii/diabolus group; woolly cap, brown flesh, brown spines.

It’s not a Phellodon (they have white spores), P. niger is bluish-black in color, P. niger var. albonoger (it should be its own species) has white to pale gray spines.

Thanks Irene.
By: Paul Derbyshire (Twizzler)
2010-09-28 17:30:53 CDT (-0400)
Any ideas?
By: Paul Derbyshire (Twizzler)
2010-09-28 01:32:08 CDT (-0400)
Cross section
By: Paul Derbyshire (Twizzler)
2010-09-20 19:52:06 CDT (-0400)

rules out H. caerulium. Anyone have any idea as to species?

Created: 2010-09-20 01:49:02 CDT (-0400)
Last modified: 2013-09-14 22:53:12 CDT (-0400)
Viewed: 301 times, last viewed: 2018-02-21 20:01:35 CST (-0500)
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