Observation 122531: Pholiota iterata A.H. Sm. & Hesler

These were growing on the ground/debris under Redwood. However, as they were in a parking lot median, it’s possible there were wood chips of some sort under the Redwood litter.
Caps were viscid and up to 5 cm across.
Spores were 8.0-9.1 X 5.3-6.0 microns, ellipsoid, smooth and egg-shaped.
Copious amount of gill cystidia. The cheilocystidia was ~ 45-60 X 12-14 microns, lageniform and some with encrusted apices.
Pleurocystidia was from ~ 70-85 X 14-19 microns and narrowly lageniform to nettle hair-shaped.
Initially I thought they were our locally common P. velaglutinousa but the spores are too large and the cystidia does not match.
So far the rather user unfriendly Smith & Hessler Pholiota tome has not helped.


Spores @ 1000X.
Pleurocystidia in Congo Red @ 1000X.
Cheilocystidia in Congo Red @ 1000X.
Cheilocystidia in Congo Red @ 1000X.

Proposed Names

29% (1)
Recognized by sight
28% (1)
Recognized by sight
Used references: http://www.mykoweb.com/...
Based on microscopic features
62% (3)
Used references: The North American Species of Pholiota pg 245

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks Rocky and your detective work
By: Ron Pastorino (Ronpast)
2013-01-11 08:05:51 PST (-0800)
was fantastic. It does look like a good match and the cystidia is very close also. They even mention it’s similarity to P. velagelatinosa.
By: Rocky Houghtby
2013-01-10 20:14:49 PST (-0800)

The viscid cap and GORGEOUS projecting pleurocystdia led to sect flammuloides. Spore size led to stirps Condensa, and P. iterata. I would vote “I’d call it that” but the cheilocystidia measurements are not the greatest match.

Awesome observation Ron. Such descriptive photographs and microscopy…

don’t know how you got to iterata in that book, Rocky…
By: Debbie Viess (amanitarita)
2013-01-10 20:04:56 PST (-0800)

but it looks to be a good match.

good to see you using congo red!
By: Debbie Viess (amanitarita)
2013-01-10 20:01:20 PST (-0800)

messy but useful.

Created: 2013-01-10 09:05:01 PST (-0800)
Last modified: 2013-01-11 23:48:34 PST (-0800)
Viewed: 127 times, last viewed: 2018-01-21 09:27:52 PST (-0800)
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