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coral fungi attacked by Helminthosphaeria

Helminthosphaeria clavariarum ? (needs further research)


the pyrenomycete Helminthosphaeria clavariarum, which routinely parasitizes Clavulina cristata from the base upwards, rendering it gray to black. Under a hand lens, the tiny black dots that form the perithecia of the pyrenomycete can be seen--and under the microscope the Helminthosphaeria can't be missed.


Description: Ecology: Presumed to be mycorrhizal with conifers and perhaps with hardwoods; growing alone, gregariously, or in clusters; summer and fall (over winter in warm climates); widely distributed in North America/europe


So far the second complication seems easy enough to decipher--but the third complication involves Clavaria cinerea, which has purplish gray to gray colors and bluntly pointed to cristate branch tips. So the question becomes: Is "Clavulina cinerea" a distinct entity, or does it merely represent forms of Clavulina cristata that have been attacked by Helminthosphaeria? ( )

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Spotted by

Horst aan de Maas, Limburg, Netherlands

Spotted on Nov 26, 2011
Submitted on Dec 12, 2011

Spotted for Mission

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