Host: Coprosma foetidissima Forst. On leaves and petioles. Herb. No. 771. Alpha Hut, Mount Hector (Wellington), 1,700 m., H. Hamilton! J. G. Myers! 15 Feb., 1921. The host is endemic, and is abundant throughout. (Cheeseman, 1906, p. 259.) The upright cylindrical peridia and large size of the spores serve to characterize this species. 8. Aecidium Celmisiae - discoloris n. form - sp. (Text-fig. 111, and Plate 2 fig. 2.)  Compositae. 0. Spermogones scattered, sparse, epiphyllous, immersed. I. Aecidia amphigenous, chiefly epiphyllous, orange-yellow, scattered or arranged in small orbicular groups. Peridia cylindrical, erumpent, standing 1 mm. above the leaf-surface, 0.1 mm. diam., margins incurved, at first dentate, becoming deeply lacerate, white. Spores subglobose, elliptical, or obovate, 36–42 × 28–34 mmm.; epispore hyaline, covered with densely-packed deciduous tubercules, 3 mmm. thick, cell-contents orange-yellow, granular. Hosts :— Celmisia discolor Hook. f. On leaves. Herb. No. 384. Mount Peel (Canterbury), 900 m., H. H. Allan! 6 March, 1921. Tooth Peaks (Otago), W. D. Reid! 7 April, 1921. (Type.) Celmisia Sinclairii Hook. f. Herb. Nos. 385, 435. Lake Harris track (Otago), 1,000 m., W. D. Reid! 6 May, 1921. Mount Isobel, Hanmer (Canterbury), 1,200 m., W. D. Reid! 4 Nov., 1921. Celmisia prorepens Petrie. Herb. No. 385. Mount Dick (Otago), 1,400 m., W. D. Reid! 24 April, 1921. All three hosts are endemic, and all are confined to the mountain-ranges of the South Island. (Cheeseman, 1906, pp. 303–6.) This species is characterized by the small cylindrical peridia, and more especially by the fact that the epispore is covered with a layer of closely-packed, coarse, deciduous tubercules. Aecidium Celmisiae-Petriei is the only other New Zealand species that possesses this feature. 9. Aecidium Celmisiae-petiolatae n. form-sp. (Text-fig. 110, and Plate 2 fig. 3.) 0. Unknown. I. Aecidia hypophyllous, seated on discoloured spots visible on the upper surface, scattered or more commonly in small orbicular groups, pallid orange. Peridia flattened-globose, 0.25 mm. diam., immersed, margins incurved, hyaline, covered by the dense tomentum clothing the leaf-surface. Spores polygonal, elliptical, or obovate, 27–45 × 20–26 mmm.; epispore hyaline, densely and minutely verruculose, 1–1.5 mmm. thick, cell-contents granular, tinted yellow. Host: Celmisia petiolata Hook. f. On leaves. Herb. No. 383. Arthur's Pass, Canterbury, 1,000 m., E. H. Atkinson! 15 Feb., 1920. (Type.) The host is endemic, and is confined to the mountain regions of the southern portion of the South Island. (Cheeseman, 1906, p. 307.) This rust is characterized by the depressed-globose aecidia, large spores, and hyaline, finely verruculose epispore. Sections are necessary to determine the shape and size of the peridium.