Phragmidium rubi-thunbergii

Uredinia hypophyllous, scattered or in small groups, minute, 0.3-0.7 mm diameter, yellow, pulverulent;paraphyses clavate, erect or incurved, wall uniformly thin, hyaline;urediniospores globose, sub-globose, obovate, broadly ellipsoid or obovoid, 16-26 x 12-20 µm;walls 0.8-1.8 µm thick, coarsely echinulate, pale-yellow. Telia hypophyllous, scattered or gregarious, minute, round or irregular, 0.1-0.3 mm diameter, pulverulent, black;teliospores cylindrical, 3(-4)-septate, 40-74 x 22-28 µm (49-85 x 21-35 fide Hiratsuka et al., 1992), rounded at apex, more or less constricted at the septa, walls 2.0-2.5 µm thick, brown, smooth, two to three germ pores in each cell;pedicels hyaline, persistent, 65 µm long. See Wei (1988) and Hiratsuka et al. (1992) for more detailed descriptions.