[1][2] The genus was first described by Daniel McAlpine in 1897, who differentiated it from various other fungal genera:"Asterula, Sacc, has continuous hyaline spores (Hyalosporae), Asteronia, Sacc, has continuous brown spores (Phaeosporae).

Asterella, Sacc, has two-celled brown spores (Phaeodidymae).

Asteridium, Sacc, has multi-septate hyaline spores (Hyalophragmiae).

And in the case of the specimen on Solanum viride with multi-septate brown spores, I have ventured to use Asteridiella (Phaeophragmiae)".

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