Terradoc a écrit
D'après mes recherches, Uromyces proeminens serait la seule espèce à parasiter une euphorbe de la section Chamaesyce.
Ce n'est pas ce qu'indique Wikipedia. Après, j'ignore ce que cela vaut :
"Uromyces euphorbiae is a fungal species (in the Pucciniaceae family and Pucciniales order) and a plant pathogen infecting poinsettias.
It was originally found on the leaves of Euphorbia hypericifolia in New York, USA.[2]
The fungus can be found on various species of Acalypha, Chamaesyce, and also other Euphorbia species (Euphorbiaceae) worldwide.[3]
It is found on other Euphorbia species, such as Euphorbia hirta,[4] and Euphorbia cheiradenia Boiss. & Hohen.[5]
It is known by the rust pustules which are delimited by a necrotic band which has a reddish-brown border"
