Observation 167123: Pholiota granulosa (Peck) A.H. Sm. & Hesler
When: 2014-06-09

Notes: On hardwood

Spores
7.45 X 4.02, minute germ pore. Yellowish- hyaline in H2O, brown in KOH.

Pileocystidia
51.86 X 14.34, hyaline in H2O, brown in KOH.

Cheilocystidia
33.16 X 14.5, versiform, ranging from pyriform (sub-globose) to sphaeropedunculate to utriform. Hyaline in H2O, becoming textured in NH4OH and darkening from yellow to tawny in KOH.

Pleurocystidia
none observed in 15 gill sections.

caulocystidia
rare at the apex, more or less like the pileocystidia. Most hyphae ending in undifferentiated cells.

Lamellar trama
sub-parralel, inflated

Pileus trama
interwoven, inflated hyaline cells interspersed with thinner clamped hyphae that are yellow in KOH. inflated hyphae measuring 11-13 microns wide.

Suprapellis
composed of interwoven inflated chains of hyphae arranged anticlinally to the trama, a trichodermal epithelium. cinnamon in masse, darker in KOH. Terminal cells clavate-lecythiform with a minute rounded apex, asperulate, nearly hyaline in H2O, Darkening significantly in KOH.

Images

425713
425714
425715
425716
425717
cheilo_400X_NH4OH
425718
Cheilo_400X_koh_congo_red
425719
400X_koh
425720
400X_koh
425732
Pileocystidia_400X_koh_congo_red
425753
Pileus_trama_KOH
425754
Spores_1000X_H2O

Proposed Names

31% (3)
Recognized by sight: Section Flavidula
-1% (2)
Recognized by sight
60% (2)
Eyes3
Recognized by sight: small appendiculate, dry, squamulose, naucorioid fungus on wood
Used references: http://www.mykoweb.com/...
Based on microscopic features: non-gelatinous trichoderm with inflated cells, spore size, trama arrangements, no pleurocystidia, cheilocystidia size shape and reaction to KOH, macro morphology.
28% (1)
Used references: http://www.mykoweb.com/...
Based on microscopic features: Pretty much microscopically identical to P. granulosa.
28% (1)
Used references: http://www.mykoweb.com/...
Based on microscopic features: Pretty much microscopically identical to P. granulosa

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Thanks, Martin
By: Rocky Houghtby
2014-06-12 07:48:04 IST (+0530)

The largest shroom in this collection was 2cm, the largest Ive collected in the past was 3cm. The lamellae were attached with a notch. I learned most of my myco vocabulary from various monographs, the internet and Largent’s book on Microscopic features. I have a lot more to learn.

The reason I proposed P. proximans and P. curcuma is that they are both microscopically identical and morphologically similar. They might be the same mushroom for all I know. I might never know, I hear that umich is super stingy with their types…

Nice work, Rocky!
By: Martin Livezey (MLivezey)
2014-06-12 05:11:51 IST (+0530)

What reference material do you use for those $20 descriptive terms? This collection is similar, but different, from the majority of submissions for this name. It is bigger, with a heavier and tapered stipe. The gills seem to get deeper as they move toward the stalk. But the margin and cap are typical. Are the gills attached to the stem?

Just curious, why did you add the last two names and stick with P. granulosa?

Here is the first thing I called P. granulosa…,
http://mushroomobserver.org/61879?q=20yPG

I have not spent
By: Martin Livezey (MLivezey)
2014-06-11 07:03:05 IST (+0530)

much time with Smith’s work. I did just scan the observations in MO with the same name…, If someone can make sense of that, then they should get to it! What an incredible range of types.

Yes
By: Rocky Houghtby
2014-06-11 06:55:05 IST (+0530)

Thank you, Martin. This observation probably represents a species from Smith’s subgenus Flavidula.

Rocky
By: Martin Livezey (MLivezey)
2014-06-11 06:44:31 IST (+0530)

Are you aware of this website?
http://www.mykoweb.com/Pholiota/contents.html

mild
By: Rocky Houghtby
2014-06-11 05:45:24 IST (+0530)
taste?
By: Parker V
2014-06-11 05:37:52 IST (+0530)

Created: 2014-06-11 04:46:58 IST (+0530)
Last modified: 2015-03-30 18:07:13 IST (+0530)
Viewed: 189 times, last viewed: 2016-11-22 20:13:12 IST (+0530)
Show Log