dictyopodium, [1445].

pterocanium, [1445].

virgineum, [1445].

Stichopterygium, [1442].

tanypterum, [1442].

anomalum, [1442].

Stigmosphæra, [68].

actinocentra, [68].

Stomatodiscus, [502].

amphistomus, [502].