Type: Rust and Smut Fungi; Description: Spermagonia scattered, minute, first reddish brown, then black, hemispherical, on reddish brown, elongated lesions up to 5 mm long; on both sides of the phyllodes, and on branches and stems. Uredinia elongated, confluent, dark brown, partially surrounding the spermagonia; spore production profuse and the dark brown spores cover the lesions, and often phyllodes and twigs, with a sooty, encrusted mass. Urediniospores oval to elliptical, 34–49 × 23–28 μm, pale brown to dark brown, verrucose, the verrucae especially dense about the apex, forming a tuft; pedicel hyaline, deciduous. Teliospores produced later, becoming intermixed with urediniospores; teliospores two on one sporophore, which has a lateral vesicle; teliospores depressed globose to subglobose, 21–26 × 22–28 μm, dark brown, smooth; vesicle globose, 35 μm in diameter, hyaline.

Distribution: Auckland, Waikato, Bay of Plenty, Taupo, Wanganui, Wellington, Hawkes Bay, Nelson, Marlborough Sounds, Mid Canterbury.; 1st Record: Laundon (1970b).

Significance: The rust is of little economic importance.; Host(s): Acacia longifolia, A. sophorae.