Observation 103372: Cortinarius subgenus Telamonia (Fr.) Trog

When: 2012-07-29

Collection location: Central Goldfields, Victoria, Australia [Click for map]

Who: TimmiT

No specimen available


Soil: sandy clay
Vegetation: Box-Ironbark forest (open sclerophyll woodland). Dominant tree species are Eucalyptus melliodora, E. microcarpa and E. leucoxylon. Sparse understory consisting mostly of Cassinia arcuata and the occasional Acacia pycnantha.

Pileus: Yellow-brown/buff, hygrophanous, 30-50mm diameter. Margin wavy, inflexed (down-pointed) when young, uplifting with age, centre flattened or depressed. Remnants of UV often persisting as white ‘bloom’ over centre. Context thickest at apex, rapidly thinning toward margin.
Stipe: White, solid, up to 8mm diameter, 15-20mm length, context concolorous, with abruptly bulbous base (diam. ~12mm), partial veil attached to bulb. Basal mycelium white.
Partial veil: White, substantial, persists well into maturity, fragile – easily broken when touched. Collecting a thick deposit of spores on the inner surface.
Lamellae: Adnate to subdecurrent, pale brown when young, darkening to rusty brown in maturity. Sometimes distorted and intervenose.
Spores: Rusty brown in deposit.
Habit: Hypogeous or emergent under leaf litter. Solitary to gregarious.
Other observations: Odour not distinctive. Taste not observed. No reaction to KOH.

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By: TimmiT
2012-07-31 03:09:36 CDT (-0400)

obs 71779 and obs 74230 for more pics and discussion of this species. The collection shown in the latter observation was lodged in the National Herbarium of Victoria (MEL), where it was going to be sequenced. I’ll have to chase up whether the results are back yet. I have added some of my field notes from that collection to this observation.

I have only ever found this species from one location approx 100m2. They come back every year though.

Similar to C. magnivellatus
By: Daniel B. Wheeler (Tuberale)
2012-07-30 13:04:46 CDT (-0400)

Need to know probable host trees. I’d bet this was found hypogeous or nearly hypogeous (perhaps with a mushrump?). The persistent veil makes it of interest to those of us who study the steps between epigeous fungi and hypogeous fungi. The thick spore deposits on the persistent veil is another strong clue.

Created: 2012-07-30 06:36:58 CDT (-0400)
Last modified: 2012-07-31 02:57:53 CDT (-0400)
Viewed: 56 times, last viewed: 2017-06-13 10:51:58 CDT (-0400)
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