Calcarisporium arbuscula?

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Chris Johnson
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Calcarisporium arbuscula?

Post by Chris Johnson » Thu Oct 01, 2015 8:13 am

This was found parasitising Lactarius rufus.

I thought it might be the above species but the conidia are far too large: 10.1-18.6 x 7.7 x 11.00µm.
Are there similar species with conidia in this range?

Thanks, Chris
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Paul Cannon
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Re: Calcarisporium arbuscula?

Post by Paul Cannon » Wed Nov 11, 2015 11:42 pm

The conidiophores look very much like Lecanicillium fungicola (look at Zare & Gams, Mycol. Res. 112: 811-824, 2008 - I can send it to you if you can't download it). I don't suppose the spores are Lactarius basidiospores?
Kind regards
Paul

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Chris Johnson
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Re: Calcarisporium arbuscula?

Post by Chris Johnson » Thu Nov 12, 2015 9:11 am

Hi Paul

Thanks for commenting on this one which I thought was a no-hoper :(

I would appreciate a copy of the paper you refer to. I checked out the genus in The Genera of Hyphomycetes: plate 50 shows the character of the conidiophores well.

I hadn't considered the possibility of the spores belonging to a basidiomycete. Not Lactarius spores but I suspected some of the fungi were unidentified Cortinarius, which would make sense.

Regards, Chris

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