Puccinia arenariae Telial Stage, on Red Campion

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Lancashire Lad
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Puccinia arenariae Telial Stage, on Red Campion

Post by Lancashire Lad » Sun Jul 26, 2015 2:00 pm

Found yesterday,

The telial stage of Puccinia arenariae on live leaves of Silene dioica - Red Campion.
Interestingly, although there were many stands of Red Campion present in the woodland, only one clump of about a dozen plants were seen to be affected. (And the infection was very obvious from some distance).

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Puccinia arenariae teliosori on Silene dioica Leaves.
Puccinia arenariae teliosori on Silene dioica Leaves.
Puccinia arenariae Teliospores x400 with scale.
Puccinia arenariae Teliospores x400 with scale.
Regards,
Mike.
Common sense is not so common.

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Re: Puccinia arenariae Telial Stage, on Red Campion

Post by adampembs » Mon Jul 27, 2015 8:30 am

I see a lot of diseased red campion, but no rust - I think it's a mildew, and I've been holding off burdening ChrisY with too many IDs :)
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Re: Puccinia arenariae Telial Stage, on Red Campion

Post by Lancashire Lad » Mon Jul 27, 2015 10:17 am

Hi Adam,

I'm led to believe that P.arenariae on Silene (and several other species), is quite common.
I've been purposely looking for it whenever I see Red Campion, (which is very common hereabouts), and this was the first time I've seen it.

I can't say that I've seen any Red Campion with definite signs of Mildew, but I've lost count of those seen with various pale blotches etc. on the leaves. Many of which I've scrutinized to see if they were one of the rusts - but they've never produced anything remotely fungal-like.

Regards,
Mike.
Common sense is not so common.

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