When: 2012-01-29

Collection location: Albion, Mendocino Co., California, USA [Click for map]

Who: Debbie Viess (amanitarita)

Specimen available

went home with somebody. UCB?

Species Lists


Proposed Names

-46% (2)
Recognized by sight: on spider.
-10% (3)
Recognized by sight
46% (2)
Recognized by sight
46% (2)
Recognized by sight
85% (1)
Recognized by sight: hard enough assigning genera with micro, much less without

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= Observer’s choice
= Current consensus


Add Comment
Nhu does not have this specimen.
By: Debbie Viess (amanitarita)
2012-02-03 11:47:00 CST (-0500)

If Peter never took it home, it is gone forever.

Why not put up your micrographs for us Alan, despite their poor quality. just link to this sighting.

I would like to see them.

By: Debbie Viess (amanitarita)
2012-02-02 11:01:10 CST (-0500)

we should just wait until we have a bit of micro analysis.

Nhu took it.
By: Douglas Smith (douglas)
2012-02-01 16:24:09 CST (-0500)

Nhu took this home with him.

Yes but
By: Alan Rockefeller (Alan Rockefeller)
2012-01-30 22:07:41 CST (-0500)

They are really blurry. I will add it anyway. I think the fine focus was way off when I pressed the shutter.

I am sure Else went home with it.

so alan….
By: Debbie Viess (amanitarita)
2012-01-30 17:59:21 CST (-0500)

did you take a photo of the “spores”?
I suspect that they were conidiospores, too…

did anybody grab this? It was still at the scope on Sunday morning…it woulda been either Peter or Alan who took it home…hope that it didn’t get dumped. :(

Just for the sake of clarity theTeleomorph for Gibellula
By: Bill (boletebill)
2012-01-30 16:09:51 CST (-0500)

is Torrubiella one of several “cordyceps” types of genera that are usually found on spiders in the anamorhic condition, as was this OB.

They resembled this picture
By: Alan Rockefeller (Alan Rockefeller)
2012-01-30 15:54:24 CST (-0500)

But less pointy, and more rounded on one end.


I’m assuming that
By: Christian (Christian Schwarz)
2012-01-30 15:43:27 CST (-0500)

Alan was referring to the conidia when he described the ‘spores’

By: Danny Newman (myxomop)
2012-01-30 15:19:16 CST (-0500)

no conidia? are you certain?

I scoped this
By: Alan Rockefeller (Alan Rockefeller)
2012-01-30 15:15:44 CST (-0500)

The spores were small, hyaline, smooth and oblong, with one pointy end. The scope didn’t have a reticle so I couldn’t get the size. It had abundant encrusted cystidia/terminal hyphae.

By: Danny Newman (myxomop)
2012-01-30 13:59:17 CST (-0500)

not nearly as common as in the southern hermisphere, especially the tropics. and regardless of where they occur, there appears to be no key, from in-progress or fully-functional, on entomopathogenic fungi. I’ve written Nigel Hywel-Jones, Robert Samson, and Harry Evans on separate occasions with general inquiries on the subject, each to no avail.

With respect to your specimen:

Spiders are naturally infected by a number of fungal pathogens, including species in the anamorph genera Akanthomyces Lebert, Clathroconium Samson & Evans, Engyodontium de Hoog, Gibellula Cavara, Granulomanus de Hoog, Hymenostilbe Petch, Nomuraea Maublanc, Paecilomyces Bainier, Pseudogibellula Samson & Evans, and the teleomorph genus Torrubiella Boudier (Evans and Samson, 1987; Samson et Accepted for publication October 15, 1996. 1 Corresponding author, email: sst@ccms.ntu.edu.tw al., 1988).

-S. S. Tzean, L. S. Hsieh, W. J. Wu, “The Genus Gibellula on Spiders from Taiwan.” Mycologia 89.2 (1997): 309-318. Print.

Yours looks decisively anamorphic, hence voting down Cordyceps. I’d have more to offer but I’m getting stonewalled from my library about retrieving my card number. I’ll poke around in what articles I do have and follow up. In the meantime, closer photography and/or microscopy will do wonders.

By: Debbie Viess (amanitarita)
2012-01-30 11:56:43 CST (-0500)

one of those asexual reproductive states of the insect-eating “Cordyceps.”

hard to search for these if you don’t already know their names!

I wonder how common this is in CA?