Observation 65278: Hydnellum aurantiacum (Batsch) P. Karst.

When: 2011-01-22

Collection location: Albion, California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under pines.

The micro-shot is of a spine at 1000x in KOH. There were elongate, 4-spored basidia, no clamp con. obs.. The spores are ellipsoid, warted/nodulose, with an ave size of: length – 6.14 +/- 0.29 (err 0.13) um, width – 4.68 +/- 0.24 um (err: 0.12) – q : 1.31 +/- 0.08, on 7 spores.

Putting this together with the orange colors on the top surface, the off-white spines, that darken in age, this is a good match for the descriptions of Hydnellum aurantiacum. The ave. spore size here matches well with H. aurantiacum, but also with just about all other Hydnellums, which lends some weight to the spore size as measured is believable.

This is a companion obs. to this one:


To show there are two different orange Hydnellum in California, and the measured details on these match with the descriptions of the two species from the east coast. (Although I am sure some people (and you know who you are…) will start the arguments that these are different than the east coast…)



Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight
Used references: “The Stipitate Hydnums of Florida”, Baird + Kahn, Brittonia 38(2), 1986
Based on microscopic features: As described in text.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2011-04-07 14:47:32 WIB (+0700)
Last modified: 2011-04-07 14:56:48 WIB (+0700)
Viewed: 44 times, last viewed: 2018-01-11 04:39:16 WIB (+0700)
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