12. Uredo wharanui n. form-sp. (Fig. 124.) II. Uredosori hypophyllous, seated on pallid spots visible on the upper surface, orbicular, 1 mm. diam., bullate, reddish-orange, pulverulent, deeply buried in the dense tomentum of the leaf-surface. Spores elliptical or obovate, 35–55 × 26–34 mmm.; epispore hyaline, coarsely and moderately echinulate, 2–2.5 mmm, thick, cell-contents granular, reddish-orange; germpores indistinct. Host: Olearia insignis Hook. f. On leaves. Herb. No. 778. Woodside Creek, Wharanui (Marlborough), E. H. Atkinson! 3 Nov., 1922. The host is endemic, and is confined to the Marlborough District. (Cheeseman, 1906, p. 279.) In size and shape the spores of this species resemble the preceding; it is separated on account of the thicker, coarsely and moderately echinulate epispore, and bright reddish-orange colour of the sori. The following species and form-species have been recorded as occurring in New Zealand, but, as I have not seen specimens, I am unable to give descriptions; moreover, as in most instances the published descriptions are so fragmentary as to be useless for comparative purposes, I have not included them here. (a.) Uromyces Azorellae Cke., Grev., vol. 10, p. 2, 1890. Host: Azorella trifoliata Benth. et Hook. f. (Pozoa trifoliata Hook. f.). Collected in Hawke's Bay by Colenso. (b.) Uromcyes citriformis Berk., Fl. N.Z., vol. 2, p. 210, 1855. Host: “On leaves of some orchid, apparently a Thelymitra.” U. citriformis Bab. (Hdbk. Fl. N.Z., p. 625, 1864) is an error of compilation. Mr. Mason, Imperial Bureau of Mycology, Kew, states that there are no specimens of this species at Kew or the British Museum. As no specimens are known, and as the description is too imperfect for determination, and as the host also is unknown, it would be advisable to discard this name. (c.) Uromyces scariosus Berk., Fl. N.Z., vol. 2, p. 195, 1855. Hosts: Geranium dissectum L. and G. microphyllum Hook. f. (= Geranium potentilloides Hook. f. Collected in Hawke's Bay by Colenso. (d.) Puccinia novo-zelandicu Bubak, Sitz-ber. Boehm. Ges. Wiss., p. 5, 1901. P. compacta Berk., Fl. N.Z., vol. 2, p. 195, 1855. Host: Myosotis capitata Hook. f. These specimens were said to have been collected in the South Island, but the host is confined to the Auckland and Campbell Islands. (Cheeseman, 1906, p. 463.) (e.) Aecidium Anisotomes Reich., Ardt. Sitzungber. K. Akad. der Wissensch., p. 3, 1865 Host: Angelica geniculata Hook. f. Possibly Puccinia cuniculi G. H. Cunn., although the description does not agree with that of the aecidium of this host.