Observation 20659: Heimioporus fruticicola (Berk.) E. Horak

Peculiar spore ornamentation (rugose to rugoluse surface with cratered pits) is unique in the boletes so far. Current consensus using macro- & micromorphology (and some preliminary DNA data) indicate it is best placed in Heimioporus. Go here to see further observations: http://www.nybg.org/bsci/res/hall/boletes & click on the various links in the Heimioporus box.

Duplicate specimens in BRI & NY (Halling #8970)

Species Lists



Image taken in situ using natural light.
Light microscope view of spores in optical section and surface view with Nomarski DIC.

Proposed Names

91% (2)
Eye3 Eyes3
Used references: E. Horak 2005 (Sydowia). Watling & Gregory 1986 (Proc. Roy. Soc. Queensland)
Based on microscopic features: Spores finely rugose with crater-like ornamentation

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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wow! those spores under the light microscope look like moon craters!
By: Debbie Viess (amanitarita)
2009-04-28 11:43:43 CDT (-0400)

thank you for not only posting this sighting, but giving such a wonderful link to background info on this new to me (and prob. most everybody else) genus. now that’s the kind of detail that I like to see!

Created: 2009-04-28 10:31:57 CDT (-0400)
Last modified: 2009-04-28 10:31:57 CDT (-0400)
Viewed: 172 times, last viewed: 2018-07-17 05:53:30 CDT (-0400)
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