Puccinia philippinensis Syd. & P. Syd.
Uredinia on lower leaf surface, subepidermal, erumpent, linear, up to 3 mm long, yellowish brown, peridium rupturing host epidermis.
Urediniospores globose to subglobose, apex obtuse, yellowish brown, 17-22 × 15-20 µm; wall 1.5-3 µm thick, finely echinulate, with 2 scattered germ pores.
Telia on lower leaf surface, subepidermal, linear, up to 2 mm long, black, with peridium.
Teliospores clavate, apex acuminate, 2-celled, reddish brown, 41-62 × 14-16 µm; wall 1-2 µm thick at sides, 4-10 µm thick at apex, smooth, with persistent pedicel.
Specimens cited in description:
- BRIP 57418, 57494.
- Cyperus iria
Sydow and Sydow (1913) described Puccinia philippinensis on Cyperus polystachyos and C. rotundus from the Philippines. Its host range was further extended by Teodoro (1937). Barreto and Evans (1995) synonymized P. philippinensis with P. canaliculata, which was described from North America and is morphologically similar. We applied P. philippinensis to this taxon in recognition that there is likely diversity among the species of Puccinia on Cyperus.