Observation 198912: Cortinarius (Pers.) Gray
When: 2015-02-05
0 Sequences

Notes:
Small brown capped, group(of three) growing on wood, (Stringy Bark). Area mainly Eucalyptus and semi rainforest.

Proposed Names

-3% (3)
Recognized by sight
36% (5)
Recognized by sight
-30% (5)
Used references: Heino Lepp.
60% (6)
Eye3 Eyes3
Recognized by sight
-30% (5)
Recognized by sight
14% (4)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Emma

Thanks for the comments. It is great to hear from you again. Heino Lepp is at Canberra Herbarium. Not sure if you know him. He has been a good friend for several years now and I send him dried specimens that I feel are worth examining. The address for Heino is Australian National Botanical Gardens, Clunies Ross Street, Black Mountain, ACT. (ph 0262509481 or 0262509450 Admin). He will send you a section if you would like to do a follow-up. I have updated the page to Cort.

It’s a Cort
By: Emma Harrower (eharrower)
2017-09-20 19:33:15 CDT (-0400)

Gymnopilus has a membranous veil and these definitely have a cortina.
Deconica has a black spore print
Galerina does not have a cortina as far and I can see.

This mushroom reminds me of Cortinarius acutus, but that’s a Northern Hemisphere species, which does not exist in the Southern Hemisphere as far as I can tell.

Heino Lepp

Heino, Thank you so much for your time and detailed reply. It is appreciated greatly. Seasons here have been sporadic to say the least. No rain and high temps have wiped out most areas of usual finds.

Comments courtesy Heino Lepp

Hi Ian

Under the dissecting microscope the white gill edges suggested the presence of cheilocystidia. A squash mount of a tiny gill fragment showed what appeared to be cystidia of various shapes – cylindric (but somewhat sinuous) to broadly clavate (with or without a short, narrow apical projection) – but in the squash mount I couldn’t be sure whether they were pleuro or cheilo. Furthermore, I failed to see whole cystidia clearly so I’m only reporting shapes away from cystidial bases. The spores are more -or-less ellipsoid (often with a flattened side); with abundant, fine, low warts over the entire spore surface; they are bright rusty brown in KOH, 6.4-8.0 × 4.0-5.2 mu; no reaction in Melzers. The hyphae are clamped and, both in the gill tissue and in the cap flesh, there are both inflated and uninflated hyphae, diameters ranging from 4 to 16 mu. The cap surface is hyphal. Basidia are narrowly clavate, 20-28 × 5.6-7.2 mu, 4-spored. Your photos show a cortina and I tentatively put this specimen in Gymnopilus. Clearly, my examination was not comprehensive but, given the small amount of material, I am loathe to butcher the collection any further, since I’m fairly ignorant about Gymnopilus-type fungi anyway. I’ll leave it to some expert in the future or an MO commentator.

Cheers,

Heino

Created: 2015-02-16 05:07:32 CST (-0500)
Last modified: 2017-09-21 16:29:16 CDT (-0400)
Viewed: 145 times, last viewed: 2017-11-14 15:32:13 CST (-0500)
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