Observation 66597: Cortinarius subgenus Phlegmacium (Fr.) Fr.
When: 2011-04-30
Herbarium specimen reported

Notes: Pileus 30-40mm in diameter, hemispherical to plane with maturity, pale grey-blue to slightly green with pale yellow-orange patches around the disc in aged specimens, fibrillose, dry.

Stipe 20-30mm x 5-10mm, whitish to pale blue-grey, clavate to subbulbous, fibrillose-silky, dry.

Lamellae Adnate, sometimes with a short decurrent tooth, relatively close, white to pale grey in young specimens becoming light tan with maturity, two to three tiers of lamellulae.

Spore deposit Rusty brown.

Reactions 3%KOH on pileus bright pink similar on stipe and veil remnants but paler, nil on lamellae.

Habit Gregarious to fasciculate.

Habitat On soil in mixed native forest, associated with Leptospermum scoparium.

Spores Finely verrucose, ellipsoid to drop shaped, average length and width of twenty spores measured 8×6.25µm.

Cheilocystidia Not distinct, clavate to cylindrical, hyaline.

Pileipellis A cutis of cylindrical cells in chains, hyaline, 47-67µm x 5.5-10µm.

Veil hyphae 50-60 × 7.5-10µm, cylindrical cells in chains, clamp connections abundant.

Proposed Names

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Eye3 = Observer’s choice
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Comments

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Thanks Karl,
By: Michael W (Michael Wallace)
2011-05-02 03:09:04 EDT (-0400)

Thanks for your thoughts here Karl, I’m glad you mentioned C. calaisopus, I think this collection represents a different taxon but I have another collection from the same location which I think is that species, I’ll add an observation and link to it from this one, I don’t have the required diagnostic information to be sure but I can show an image.
http://mushroomobserver.org/66788

This could possibly be close to C. ionomataius, I have a dried collection that you are welcome to examine!

Some ideas…
By: Karl Soop (karlsoop)
2011-05-02 00:25:24 EDT (-0400)

Nice collection, and I am not sure if I have seen this sp. before. It somewhat recalls c. calaisopus, which goes with myrtaceous plants, reacts with alkalis as you say, but is paler and the spores are not an exact match. My first impression, however, was one of the many forms of C. ionomataius, which can also go with Leptospermum in a pinch I think, but the spores seem too off. So I hope we’ll see it again.

Created: 2011-04-30 05:12:13 EDT (-0400)
Last modified: 2011-05-08 03:37:37 EDT (-0400)
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