Type: Rust and Smut Fungi; Description: Spermagonia crowded together in small groups, honey coloured, up to 0.1 mm in diameter; on both sides of leaves. Aecia in rings surrounding the spermagonia, bright orange becoming yellow-orange, 1–3 mm in diameter; on circular yellowish leaf spots on upper surfaces of leaves. Aeciospores globoid to ellipsoid, 20–30 × 18–24 μm, densely verrucose, hyaline. Uredinia scattered or in groups, pale yellow; on the lower surfaces of leaves. Urediniospores globoid to ellipsoid, 20–25 × 16–24 μm, echinulate, yellow. Telia scattered or in groups, black; on the lower surfaces of leaves. Teliospores ellipsoid-oblong to cylindroid, 3–5-septate, 55–110 × 30–36 μm, with a pale to hyaline apical papilla, verrucose, chestnut brown.

Distribution: Wanganui, Wellington, Chatham Islands.; 1st Record: Laundon (1970b).

Significance: Causes little damage.; Host(s): Rosa sp. cult.