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Thanks for info. Nice work!
I believe it depends on the life cycle stage you are observing. I can guarantee that morel experts here would get bent out of shape if you referred to a yellow morel as Constantinella cristata (the asexual stage)!
So, they are actually just different stages of the same species! It shouldn’t matter what we call them, then.
Ohio State University Extension
Agriculture and Natural Resources
Orange Rust of Brambles
Michael A. Ellis
Department of Plant Pathology
“Causal Organism and Disease Development
“Orange rust is caused by two fungi that are almost
identical, except for a few differences in their life cycles.
Arthuriomyces peckianus occurs primarily in the northeastern
quarter of the United States and is the causal agent
for the disease in Ohio. Gymnoconia nitens is a microcyclic
(lacks certain spores) stage of A. peckianus. G. nitens is the
more common orange rust pathogen on erect and trailing
blackberries in the Southeast.”
only that these used to belong to Puccinia..
I’m still not sure which one I had in my obs – forgot to look for telia later in the season. But Gymnoconia is the one that is mentioned on brambles.
On the other hand, some sources make them synonyms.
What makes this not a puccinia genus? I saw an older post of yours going between this and Arthuriomyces peckianus. Love seeing all these rusts with the overabundance of rain.
Created: 2011-05-26 21:36:24 CDT (-0400)
Last modified: 2011-07-17 13:47:18 CDT (-0400)
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