Phragmidium pauciloculare

Aecia hypophyllous, mostly on veins or on petioles, peduncles and buds, rounded or irregular in shape, confluent, soon naked, pulverulent, ruptured epidermis inconspicuous, orange-yellow. Uredinia hypophyllous, scattered or loose groups, minute, round, orange-yellow, pulverulent 0.2-0.3 mm;paraphyses clavate, erect or incurved, wall thin, hyaline;urediniospores globose, sub-globose, obovate, broadly ellipsoid or obovoid, 12-25 x 13-20 µm;walls 1-1.5 µm thick, densely and coarsely echinulate, hyaline, contents orange-yellow or pale-yellow. Telia hypophyllous, scattered or gregarious, minute, round or irregular, 0.2-0.4 mm diameter, pulverulent, black;teliospores cylindrical, 2-6-septate, 35-111 x 18-27 µm, rounded at the apex, not constricted at the septa, chocolate-brown, smooth, apical papilla none, not or slightly thickened at the apex, two to three germ pores in each cell;pedicels hyaline, persistent, approximately 144 µm long. See Wei (1988) and Hiratsuka et al. (1992) for more detailed descriptions.