Observation 6829: Nectria cinnabarina (Tode ex Fr.) Fr.
When: 2008-01-27
Herbarium specimen reported

Notes: On birch twig (Betula papyrifera), probably only dead for less than a year. Visible as these tiny (0.5-1mm wide), cute little coral-pink warts that burst through the thin bark like tiny popcorn. The warts appear to be pycnidia (or whatever the mycological equivalent term is for this common lichen structure), composed of a thick gelatinous mass of conidia. The conidia are hyaline and elliptical, 6.5-8.5×2.5-3.5um (just measured a bunch off of the photo and recorded extremes). The hyphae on which the conidia are borne are themselves hyaline, septate, equally thick, occasionally branching, and potentially quite long (easily up to 40-50 um). Apparently this is an ascomycetes related to Hypocrea.

Species Lists

Images

11607
Under disssecting scope, 30×.
11608
Under disssecting scope, 10×.
11609
Under disssecting scope, 30×.
11610
Section, under disssecting scope, 30×.
11611
Section, under LM, at 100×.
11612
Are these called phialides? These are the hyphae at the base of and that extend up into the conidial mass. Under LM, at 1000×.
11613
Conidia mass, still intact. Under LM, at 1000×.
11614
Conidia. Under LM, at 1000×.
13752
I saw this (as the date indicates) several months after the original observation. It was just so much more photogenic of a specimen, I figured it was worth photographing and adding to the old observation.

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Comments

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thanks!
By: Jason Hollinger (jason)
2008-02-19 14:10:15 CST (-0500)

Thanks! I’m really pulling out every stop to try to find anything (nonlichenized) worth posting up here in the arctic winter! :) It was very fortuitous that I stumbled on the CFS page for this fungus accidentally while reasearching the Fomes fomentarius. I said “oh my god! that’s what that stupid pink thing is that’s been sitting on my desk for weeks!” and sure enough… Where would one even begin to key out an obscure asexual fruiting body like this anyway???

Wow!
By: Debbie Viess (amanitarita)
2008-02-19 10:57:05 CST (-0500)

What a cool fruit body.

Created: 2008-02-18 19:26:37 CST (-0500)
Last modified: 2008-02-18 19:26:37 CST (-0500)
Viewed: 121 times, last viewed: 2016-04-22 15:30:57 CDT (-0400)