Growing on fallen twig of Picea sitchensis

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Chris Johnson
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Growing on fallen twig of Picea sitchensis

Post by Chris Johnson » Sat Mar 14, 2020 11:20 am

Apothecia dry and incurled when found; hydrated as images – possibly erumpent. Inamyloid in Melzer’s.
Spores 5.6-8.6 x 2.1-2.6 µm, smooth with two guttules.
Asci 35-41 x 5-5 µm
Paraphyses filiform with some branching.
I’ve failed to key this out and would welcome any suggestions.
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Chris Johnson
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Re: Growing on fallen twig of Picea sitchensis

Post by Chris Johnson » Sat Mar 14, 2020 2:07 pm

An update: Brian Douglas suggests it could be Ionomidotis fulvotingens. This was the closest I got but was discouraged by the texts suggesting a broadleaf species. He goes on to say: "... I'd recommend vouchering it and keeping it safe, and keeping an eye out for more, in case anyone is doing a DNA based revision of this group in the near future. I suspect the different host might indicate it's a distinct and undescribed species."
There is very little of it and it may be safer at Kew. I'll as Paul Cannon if he would like it.

Marja
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Re: Growing on fallen twig of Picea sitchensis

Post by Marja » Thu Apr 16, 2020 6:29 am

Hi,

this looks a bit like Cenangium ferruginosum, which I have found on Pinus sylvestris. Because of the spore size, this is not that species, but there are some others in the genus of which I do not have descriptions. I got to warn, that I may be completely in the woods with this suggestion of the genus....

Marja

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Re: Growing on fallen twig of Picea sitchensis

Post by Chris Johnson » Thu Apr 16, 2020 7:06 am

Hi Marja

Thank you for the thought - as you say, not this species but one I haven't encountered yet.

There are no trees here to get lost in but I'm often seen floundering in keys. :(

Regards, Chris

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