Hosts : Aciphylla Monroi Hook. f. Sealey Lake, Mt. Cook, Canterbury, 1,500 m. 1/28. H. H. Allan! Type. Mt. Trovatore, Westland, 1.200-1,500 m. 2/28. G.H.C. Aciphylla Monroi x Colensoi. Sealey Lake, Mt. Cook, Canterbury, 1,500 m. 1/28. H. 1I. Allan!

0. Pycnia amphigenous, conspicuous, scattered, associated with the aecidia, flask-shaped, semi-erumpent.
I. Aecidia amphigenous, chiefly epiphyllous, scattered evenly over the central parts of the leaf, and on petioles, seated on yellow spots; peridia 0.3-0.4 mm. diameter, cylindrical, standing above the leaf surface 1 mm., eroded, but not lacerate. Spores subglobose or shortly elliptical, 20-24 mmm. ; epispore hyaline, 1 mmm. thick, minutely and densely verruculose.
III. Teleutospores amphigenous, compacted into dense linear series, 15 cm. or more in length, individual sori erumpent, elliptical, 0.5-1 mm. long, pulverulent, long covered. Spores elliptical or sub clavate, irregular, 40-52 x 20-24 mmm; apex rounded, seldom bluntly acuminate, not or scarcely thickened, base acuminate, basal cell longer and narrower, cuneiform; slightly constricted at the septum; epispore delicately verruculose, chestnut-brown, 1.5-2 mmm. thick pedicel deciduous, hyaline, to 25 x 6 mmm. ; germ pore of the upper cell apical or j towards the septum, basal pore j to 3 below the septum, both conspicuous and papillate.
X. Mesospores common, obovate or fusoid, 35-48 x 20-24 mmm.

Both hosts are endemic, the former being confined to the mountain regions of the South Island (Cheesem. 1925, p. 665).
This species is peculiar in that in a considerable number of the teleutospores there may be two germ pores in the cell. For example, there may be two pores in the upper, and one in the lower cell; or two in the lower but one in the upper cell; but in no case has two pores in each cell been noted.
The rust is named in honour of Mr. Peter Graham, the wellknown guide, for many years at Mt. Cook, now manager of Waiho House, Franz Josef Glacier; to whom Dr. Allan and myself are indebted for a very interesting and profitable tour of the mountains in the region of the Franz Josef Glacier.

Cunningham (1931 a) stated that both rust and host plant [Aciphylla monroi] are endemic. It occurs only in mountain areas in the South Island.