A rust fungus found on Derris cf. trifoliata from the Philippines formed subcuticular spermogonia,
Calidion-type aecia and uredinia, and telia on the infected leaves. Aeciospores
and urediniospores were pedicellate and echinulate with two equatorial germ pores. The
wall of two-celled pedicellate teliospores was irregularly ornamented with short tubercles.
The fungus was identified as Puccinia acanthophora. Because of the spermogonium type and
the host preference to the Fabaceae, the fungus was transferred to the genus Sorataea.