Host: Anisotome filifolia (Hook. f.) Cockayne and Laing. On leaves and stems. Herb. No. 741. I, II. Mount Isobel, Hammer (Canterbury), 1,000 m., W. D. Reid! 4 Nov., 1921. I, II, III. Sugarloaf, Cass (Canterbury), 1,500 m., W. D. Reid ! N. R. Foy ! 20 Jan., 1922.

0. Unknown.
I. Aecidia amphigenous and caulicolous, crowded in scattered groups up to 25 mm. long, seated on slightly inflated, discoloured spots, orange. Peridia copulate, 0.25 mm. diam., 1 mm. high, margins erect, not revolute, laciniate, white. Spores polygonal or subglobose, 18-24 mmm. diam.; epispore tinted yellow, densely and minutely verruculose, 1-1.5 mmm. thick, cell-contents vacuolate, orange.
II. Uredosori amphigenous, chiefly hypophyllous, and caulicolous, on leaves scattered, orbicular, up to 1.5 mm. diam., seated on pallid yellow spots; on stems linear, up to 3 mm. long, seldom confluent; orange-yellow, bullate, pulverulent, surrounded and partly covered by the ruptured epidermis. Spores elliptical, obovate, seldom globose, 18-30 X 16-22 mmm.; epispore tinted yellow, sparsely and moderately echinulate, 1-1.5 mmm. thick, cell-contents granular, sulphur-yellow; germ-pores 4, equatorial, obscure.
III. Teleutosori similar to the uredosori but chestnut-brown. Spores subclavate or elliptical, 30-40 X 18-26 mmm.; apex rounded, not thickened, base attenuate, lower cell narrower than the upper; slightly constricted at the septum; epispore coarsely warted, chestnut-brown, 2-2.5 mmm. thick, cell-contents granular; pedicel persistent, hyaline, fragile, up to 25 X 7 mmm.; germ-pore of the upper cell apical, conspicuous, basal pore 3/4 below the septum, conspicuous.

0. Incognitis.
I. Aecidiis amphigeniis et caulicolis, in catervis congestis, ad 25 mm. longis, in maculis decoloratis inflatis, luteis. Peridiis cupulatis, 0.25 mm. latis, I mm. exstitis, marginibus erectis, non revolutis, laciniatis, albis. Aecidiosporis polygoniis vel subglobosis, 18-24 mmm. latis; episporio pallido-flavo, dense minuteque verrucoso, 1-1.5 mmm. crasso, contentu vacuolato, luteo.
II. Uredosoris amphigeniis, praecipue hypophyllis, et caulicolis, in foliis raris, rotundis, ad 1.5 mm. latis, in maculis pallido-flavis, in caulibusque ellipticis, ad 3 mm. longis, raro confluentibus, luteis, bullatis, pulverulentibus, rupta epidermide cinctis et partim tectis. Uredosporis ellipticis, obovatis, raro globosis, 18-30 X 16-22 mmm.; episporio pallido-flavo, raro et leniter ecbinulato, 1-1.5 mmm. crasso, contentu granuloso, luteo.
III. Soris teleutosporiferis uredosoris immixis et similibus, castancis. Teleutosporis subclavatis vel ellipticis, 30-40 X 18-26 mmm.; apice rotundato, non incrassato, basi attenuato; ad septum leniter constricto; episporio rustice verrucoso, castaneo, 2-2.5 mmm. crasso, contentu granuloso; pedicello persistence, hyalino, delicato, ad 25 X 7 mmm.; foramine germinis cellulae superioris apicale, conspicuo, foramine basal 4 infra septum, conspicuo.

The host is endemic, and is confined to the mountains of the South Island. (Cheeseman, 1906, p. 218.)
This species is characterized by the coarsely-warted epispore of the teleutospore.

Hab.: In folds vivis et caulisque Anisotominis filifoliae (Hook. f.) Cockayne et Laing. Mount Isobel, Hammer, Canterbury, New Zealand. W. D. Reid.