Hosts: Hebe glaucophylla (Ckn.) Allan, comb. nov. Mt. Mantell, Westland, 1,700 m., 2/28. G.H.C. Hebe Traversii (Hook. f.) Ckn. et Allan. Mt. Percival, Canterbury, 1,000 m., 1/28. H. H. Allan!

0. Unknown.
I. Aecidia amphigenous, chiefly hypophyllous, distorting and etiolating, systemic, scattered evenly and sparsely over the leaf' surface; peridia sunken completely in the host tissues, 0.6-0.8 mm. diam., at first opening by a minute pore, becoming cupulate when old; peridial cells to 35 mmm. long, thin walled (2 mmm.), orbicular, readily separable, striated. Spores shortly elliptical, or subglobose,. 18-24 mmm. ; epispore hyaline, 2.5 mmm. thick, covered with dense coarse, rounded tubercules, contents reddish-orange.

The systemic mycelium, completely submerged peridia with their thin walled, readily separable cells, are the characters of this species. McAlpine. records this on Veronica gracilis R. Br. and V. calycina R. Br., and also mentions the fact that it causes thickening and. distortion of the leaves.

Hosts: Hebe Treadwellii Ckn. et Allan.
Black Birch Creek, Mt. Cook, Canterbury, 1,200 m., 1/28. G.H.C. Type. Hebe maerantha (Hook. f.) Ckn. et Allan. Sealey Range, Mt. Cook, Canterbury, 1,300 m., 1/28. H. H. Allan. Hebe macrantha var. brachyphylla (Cheesem.) Ckn. et Allan. Mt. Isobel, Canterbury, 900 m., 1/28. G.H.C. Hebe Traversii (Hook. f.) Ckn. et Allan. Mt. Isobel, Canterbury, 900 m., 1/28. G.H.C. Hebe elliptica (Forst. f.) Pennell. Seal Rock, Brighton, Westland, coast, 2/28. G.H.C. Charleston, Westland, coast, 2/2-8. G.H.C.

0. Unknown.
I. Aecidia hypophyllous, scattered evenly and sparsely over the leaf surface, lemon-yellow in mass; peridia cylindrical, deeply immersed, standing above the surface 0.2-0.3 mm., toothed, 0.3-0.4 mm. diam., finally disappearing in old specimens; peridial cells rhomboid, thick-walled, 6-8 mmm., sculptured, firmly compacted together. Spores polygonal or subglobose; 18-22 mmm. diam ; epispore hyaline, densely and minutely verruculose; contents pallid lemon-yellow.

This differs from the preceding in the different nature of the peridium, in not being systemic, and in the much finer markings of the spores. It differs from Aecidium Veronicas Berk. a species recorded from Australia, in that the spores are much smaller, and possess thinner epispores.

Hosts: Pratia macrodon Hook. f. . Kirkliston Range, Otago, 1,200 m., 1/28. G.H.C. Craigieburn Range, Canterbury, 1,800 m., 1/28. G.H.C. Mt. Trovatore, Westland, 1,300 m., 2/28. G.H.C. Pratia angulata (Forst. f.) Hook. f. Raikaia Gorge, Canterbury, 400 m., 1/28. G.H.C.

0. Pyenia in, small groups, amphigenous, flask-shaped, semierumpent.
I. Aecidia amphigenous, crowded on leaves and petioles, etiolating, orange; peridia bullate, elliptical or subglobose, 0.5-2 mm. long, at first covered by the host tissue, and opening by a narrow pore, later becoming bullate and rupturing longitudinally; composed of a few scattered cells without definite cohesion, oval, flattened, to 40 mmm. long, verruculose. Spores subglobose, 22-24 mmm: ; epispore hyaline, 2 mmm. thick, finely and densely tuberculate-areolate.

The latter host is endemic and fairly widely distributed; the former is confined to the South Island (Cheesem. 1925, p. 885). The mycelium of this species is systemic, tending to etiolate and distort infected plants, rendering them conspicuous on this account. The very imperfect peridium is absent entirely from numerous sori, so that the plant is on the border line between an aecidium and a caeoma. When present the peridium consists of a few scattered dissociated cells, imperfectly cohering, and held in, place by the epidermis; consequently this structure is seen as a rule only in young sori, before the epidermis has fissured.
McAlpine (1906, p. 149) has also commented on this fact; he records this stage on Pratia erecta Gaudich., P. pedunculata Benth., and P., platycalyx Benth., as well as on Lobelia anceps L., L. pratioides Benth., and L. purpurascens- R. Br. He places the form under Puccinia aucta Berk. et F. v. M., because Lobelia anceps is a host for both; he has not succeeded in finding both stages on the same host at the same time, however. I believe them to be distinct because in the numerous collections of the aecidium recorded above and of-Puccinia aucta, aecidia are confined to Pratia spp., teleutospores to Lobelia anceps. Further, collections of Lobelia anceps taken at all times of the year from a locality near Seatoun, have yielded only teleutospores.

Host: Olearia arborescens (Forst. f.) Ckn. et Laing. Mt. Egmont, Taranaki, 1,000 m., 2/23. E. H. Atkinson!; 1,300 m., 4/25, J. C. Neill!; 11/27, 1,000 m., G.H.C. Arthur's Pass, Canterbury, 900 m., 1/28. G.H.C. Alecs' Knob, Franz Josef Glacier, Westland, 1,300 m., 1/28 G.H.C.

0. Pycnia chiefly epiphyllous; flask-shaped, sparse, scattered, immersed, associated with the aecidia.
I. Aecidia amphigenous and on petioles and stems, in scattered groups of 3-5, seated on discoloured spots visible on both surfaces, pallid orange, becoming lemon yellow; peridia 0.4-0.5 mm. diam., up to 2 mm. above the leaf surface, at first cylindrical, and scarcely revolute, eroded, becoming lacerate with age; cells polyhedral, to 70 mmm. long, hyaline, thick walled, sculptured. Spores elliptical, or obovate, 38-52 x 22-28 mmm. ; epispore hyaline, 1.5 mmm. thick, densely covered with angular deciduous warts, appearing reticulate.

The host is endemic and common throughout (Cheesem. 1925, p. 919). The aecidium shows a general resemblance to that of Puccimia novae-zelandiae G. H. Cunn. (and was included under this species in a previous paper) in its cylindrical shape, but differs in the hyaline, not tinted epispore, and in this structure being reticulate and not verruculose.

0. Pycnia hypophyllous, associated with the aecidia, immersed.
I. Aecidia epiphyllous, on laterals and branches; on leaves in small scattered groups up to 5 mm. diam., on laterals and stems forming elliptical areas up to 10 mm. long, pallid yellow; peridia 0.4-0.5 mm. diam., flask-shaped, opening to the exterior by a small aperture, scarcely evident above the surface of the tissues, margins fimbriate. Spores irregular in shape, elliptical, tending to fusiform, elavate or pyriform, sometimes apiculate, 36-43 x 22-28 mmm. ; epispore hyaline, 1.5 pimm. thick, densely and finely verruculose.

The host is endemic and confined to the mountains of the South Island (Cheesem. 1925, p. 1027). On laterals are sometimes produced distorted inflations, but as a rule the rust is evident only on account of the colour of the aecidia in mass.

Host: Traversia baccharoides Hook. f. Mt. Mantell, Westland, 1,700 m., 2/28. G.H.C. Type.

Hosts: Caltha novae-zelandiae Hook. f.
Sebastopol Range, Mt. Cook, Canterbury, 1,300 m., 1/28 G.H.C. Type. Craigieburn Range, Canterbury, 1,500 m., 1/28. H. H. Allan! Alecs' Knob, Franz Josef Glacier, Westland, 1,300 m., 1/28. G.H.C. Caltha obtusa Cheesem. Mt. Rangitaipo, Westland, 1,200 m., 2/28. G.H.C.

0. Unknown.
I. Aecidia hypophyllous, yellowish, scattered evenly over the leaf surface, occasionally on petioles, not distorting; peridia 0.3-0.5 mm. diam., slightly erumpent, margins only showing above the inflated epidermis, scarcely reflexed, white, toothed; spores shortly elliptical, subglobose, seldom polygonal, 18-22 mmm. diam. ; epispore hyaline, 1 mmm. thick, densely and minutely verruculose.

Both hosts are endemic and fairly widely distributed (Cheesem. 1925, p. 454-455).
The mycelium of this rust is systemic, etiolating the leaves and dwarfing the plant, and on this account rendering it conspicuous. Sometimes the aecidia parallel the mid-rib, forming lines of a few aecidia on either side.
Owing to the imperfect descriptions published elsewhere, and to. the absence of specimens, it is not possible to identify this species with any other rust occurring on Caltha; the sorus characters separate it from a plant McAlpine (1906) has provisionally named. Aecidium Calthae Grev. (the aeeidial stage of Puccinia Calthae Link), and its systemic habit is a feature not recorded for other species. occurring on the same host.genus. In view of these facts it is provisionally named as new until such time as the teleutospores have been collected.

Charleston, Westland, coast, 2,/28. G.H.C. Cape Foulwind, Westland, coast, 2/28. G.H.C.<

II. Uredosori hypophyllous, seated on discoloured spots, orbicular, 0.5-2 mm. diam., scattered or more regularly arranged in circinnate groups, erumpent, orange, fading to pallid ochraceous, surrounded by the ruptured epidermis. Spores subglobose, 16-20 mmm. diameter; epispore hyaline, 3-3.5 mmm. thick, moderately and finely verruculose; germ pores 6-8, scattered, obscure; immixed with numerous, hyaline, capitate paraphyses, swollen at the apex to 24 mmm.
III. Unknown.

The host is indigenous and fairly widely spread from the North Cape southwards; it extends also to Norfolk Island (Cheesem. 1925, p. 542).
Although only uredospores are present on the abundant specimens at hand, the plant is obviously a Melampsora; the inflated hyaline paraphyses, and type of spores being typical of this genus. As several species have been recorded as occurring on Euphorbia elsewhere, and as it is not possible to refer this to any one of these on account of their general similarity in the uredostage, it has been provisionally described as new, until such time as the teleutospores are collected.

Euphorbia glauca Forst. f. Seal Rock, Brighton, Westland, coast, 2/28. G.H.C. Type.

0. Unknown.
II. Uredosori erumpent, scattered, bullate, pulverulent, ferruginous, elliptical, 1 mm. diam. Spores shortly elliptical or obovate, 35-40 x 22-25 mmm.f ; epispore pallid ferruginous, 1.5-2 mmm. thick, except at the apex where thickened to 6 mmm. and deeper in colour, finely and densely echinulate; germ pores inevident.
III. Teleutosori erumpent, scattered, elliptical, 1-4 mm. long, bullate, pulverulent, chestnut-brown, surrounded by the ruptured epidermis. Spores subclavate or elliptical, 28-48 x 17-24 mmm. ; apex rounded, not or scarcely thickened, base attenuate, less commonly rounded, basal cell larger and slightly narrower; not or slightly constricted at the septum; epispore chestnut-brown, 2 mmm. thick, finely and sparsely verrucose ; pedicel deciduous, hyaline, fragile, to 20 x 6 mmm. ; germ pore of the upper cell apical or less frequently towards septum, basal pore immediately above the pedicel or between the septum and the pedicel, both conspicuous and occasionally papillate.
X. Mesospores rare, elliptical or obovate, 26-32 x 16-20 mmm.

The host is endemic and confined to the mountain regions of the South Island (Cheesem. 1925, p. 291).
This species differs from P. Rostkoviae Speg. on Rostkovia grandiflora in South America, in the epispore of the teleutospore being verrucose, not smooth, and in the absence of paraphyses and presence of uredospores.

Host: Rostkovia gracilis Hook. f. Mt. St. Arnaud, Nelson, 1,800 m., 2/28. H. H. Allan! Type.

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.

0. Unknown.
III. Teleutosori scattered, hypophyllous, orbicular, 0.5-1 min. -diam., pulverulent, orange or pallid chestnut-brown, naked but covered by the tomentum of the leaf. Spores linear-oblong, or sub-clavate, 80-144 x 20-30 mmm.; apex rounded or less frequently slightly subacuminate, not thickened, base subattenuate, lower cell longer and narrower than the upper, usually cuneiform; constricted :at the septum; epispore 1 mmm. thick, tinted, almost hyaline, smooth; contents orange yellow; pedicel persistent, hyaline, length of the spore; germ pore of the upper cell apical, basal pore immediately beneath the septum, both obscure.

The host is endemic and occurs in both Islands (Cheesem. 1925, p. 924).
The rust is very close to P. hectoreasis G. H. Cunn. on Senecia Bidwillii, but differs in the thinner, tinted epispore, and slightly different shape of the teleutospore. The absence of an aecidium may also be a diagnostic character, but in the absence of pycnia it cannot be stated definitely that an aecidium does not occur in the cycle of the species under consideration.
The teleutospores germinate immediately on reaching maturity,, giving to the sori a distinct orange colour.

Host: Olearia nummularifolia Hook. f. Kea Point, Mt. Cook, Canterbury, 700 m. 1/28. H. H. Allan-G.H.C. Type.

0. Unknown.
I. Aecidia hypophyllous, when aggregated into small groups, and eaulicolous when crowded on inflated, sometimes distorted areas which may attain a length of 25 mm. or more, and on fruits when scattered evenly over the carpels ; peridia cupulate, 0.3-0.5 mm. diam., apex slightly erumpent, expanded but not revolute, lacerate when old. Spores subglobose or polygonal, 18-24 mmm. diam. ; epispore hyaline, 1 mmm. thick, finely and densely verruculose.
II. Uredosori hypophyllous, scattered, orbicular, 0.5 mm. diameter, pulverulent, pallid brown, partly covered by the ruptured epidermis. Spores obovate or subglobose, 22-28 x 20-25 mmm. ; epispore tinted lemon yellow, 1.5 mmm. thick, finely and rather sparsely echinulate ; germ pores equatorial, 4, conspicuous.
III. Teleutosori similar to the uredosori but chestnut-brown. Spores elliptical or subclavate, 28-35 x 18-24 mmm. ; apex rounded, not thickened, base rounded, basal cell slightly narrower; slightly constricted at the septum; epispore smooth, 2 mmm. thick, chestnutbrown; pedicel deciduous, hyaline, to 35 x 8 mmm.; germ pore of the upper cell apical, basal pore immediately above the pedicel, both often papillate and conspicuous.

The host is endemic and occurs in both Islands (Cheesem. 1925, p. 683). This species resembles most closely P. Anisotominis G. H. Cunn. on Anisotome Haastii, but is separated from this species in that the apices of the aecidiospores are not thickened, and by the much smaller teleutospores, those of P. Anisotominis being 40-60 x 17-22 mmm.
The rust is named in honour of Sir Joseph Kinsey, a staunch supporter of New Zealand botanical research.

Host: Angelica geniculata (Forst. f.) Hook. f. Raikaia Gorge Island, Canterbury, 400 m. 1/28. H. H. Allan! Type.

Host: Olearia lacunosa Hook. f. Mt. Arthur, Nelson, 1,300 m. 2/28. G.H.C. Type. Mt. Rangitaipo, Westland, 1,200 m. 2/28. G.H.C. Mt. Trovatore, Westland, 1,000 m. 2/28. G.H.C. Mt. Mantell, Westland, 1,000-1,500 m. 2/28. G.H.C. Alecs' Knob, Franz Josef Glacier, Westland, 1,000 m. 2/28.. G.H.C.

0. Pycnia in small, scattered, epiphyllous, orbicular groups: seated on discoloured spots, immersed.
I. Aecidia orange, in small scattered epiphyllous groups of 3-7,, often on the mid-rib, seated on discoloured spots. Peridia cylindrical, standing above the leaf surface 1.5 mm., 0.3-0.5 mm. diameter, margins eroded, finally lacerate. Spores shortly obovate, subglobose or polygonal, 24-30 x 16-22 mmm. ; epispore hyaline, 1 mmm. thick,, covered with densely packed angular warts, appearing reticulate-areolate in consequence.
II. Uredosori scattered, hypophyllous, orange, fading to sulphur-yellow, crowded in the vicinity of the mid-rib, orbicular, 0.5-1.5 mm.. diam., pulverulent, naked. Spores fusiform, clavate or seldom elliptical, pointed at one or both ends, 40-56 x 16-20 mmm. ; epispore hyaline, smooth, 1.5 mmm. thick, thickened apically to 4 mmm. ; germ pores absent, replaced by odd scattered thin places in the wall; mixed with numerous hyaline, cylindrical paraphyses.
III. Teleutosori similar to and mixed with the uredosori, sulphur-yellow. Spores elliptical or clavate, 80-100 x 20-30 mmm. ; apex rounded, not or scarcely thickened, basal cell nearly twice as long as the upper, and narrower; constricted at the septum; epispore tinted brown, 1 mmin. thick, smooth; pedicel persistent, hyaline, to, 140 x 8 mmm. ; germ pore of the upper cell apical, basal pore immediately beneath the septum, both obscure; immixed with numerous: hyaline cylindrical paraphyses.
X. Mesospores rare, elliptical or obovate, 30-50 x 18-26 mmm.

The host is endemic and fairly widely distributed through the^, South Island, but confined to the Tararuas of the North Island (Cheesem. 1925, p. 922).
This species possesses many peculiar features not present in any other New Zealand species; the uredosori are deeply embedded in the host tissues, when they appear similar to aecidia, but as the spores are not in chains, nor enclosed within peridia, they cannot be confused with such. The most peculiar feature is that the uredospores are smooth, a character rare indeed for this spore stage in the Uredinales. Another peculiarity is that the uredosori are present in the cycle, the.only example in which the complete cycle is known in New Zealand Olearia and Senecio inhabiting species. The teleutospores germinate immediately on reaching maturity, and arise from the uredosori.

Host: Senecio Adamsii Cheesem. Mount Arthur Plateau, Nelson, T. F. Cheeseman. Type.

II. Uredosori crowded in epiphyllous, orbicular groups up to 5 mm. diam., deeply sunken in the tissues so that the apertures alone are visible, 0.5 mm. diam. Spores shortly^- elliptical, slightly obovate, often angular, 40-56 x 32-44 mmm. ; epispore pallid cinnamon-brown, 4-5 mmm. thick,, sparsely and irregularly echinulate; germ pores equatorial, 4, obscure.

The host is endemic and occurs in both Islands; but is confined to the Tararua Range in the North Island. (Cheesem. 1925, p. 1024). The sori resemble aecidia in that they are submerged within the flask-shaped cavities in the host tissues; the resemblance is further strengthened in that the cavities are in part lined with fungous tissue in the nature of a pseudoparenchyma; but as the spores are not in chains, and as no definite peridial cells are present, the plant must be considered an Uredo.
The species is named from material taken from a collection of the host in the Petrie herbarium, collected by the late Mr. T. F. Cheeseman.

Hosts: Dauthonia Cunninghamii Hook. f. Base of Stocking Glacier, Mt. Cook, Canterbury, 1,000 m., 1/28. G.H.C. Tasman Moraine, Mt. Cook, Canterbury, 800 m., 1/28. G.H.C. Type. Danthonia flavescens Hook. f. Little Peel, Canterbury, 1,000 m., 1/28. G.H.C.

II. Uredosori hypophyllous, seated on discoloured spots visible on the upper surface, scattered and elliptical when up to 3 nun. long, or aggregated into linear series 1 cm: or more in length, pulverulent, pallid ferruginous brown, partly covered by the ruptured epidermis. Spores subglobose, or shortly elliptical, 36-42 x 32-36 mmm. ; epispore pallid chestnut-brown, 2 mmm. thick, moderately and finely verruculose; germ pores scattered, 7-11, obscure.

Both hosts are endemic and widely distributed (Cheesem. 1925, p. 172)
The spores are larger than those described by McAlpine (1906) for Uromyces Danthoniae from Australia, but otherwise show a general resemblance, especially in the numerous scattered germ pores. The species shows also a general resemblance to Uredo toetoe G. H. Cunn. on Arundo conspicua, but is separated by the much larger spores.

Host: Olearia moschata Hook. f. Black Birch Creek, Mt. Cook, Canterbury, 1,200 m. 1/28. G.H.C. Type.

II. Uredosori hypophyllous, scattered, orbicular, 0.5-1 mm. diam., pulverulent, pallid lemon-yellow, deeply immersed in the tomentum of the leaf. Spores subglobose or obovate, 24-30 x 20-24 mmm. ; epispore hyaline, 1 mmm. thick, finely and closely covered with small round-topped deciduous verrucae; germ pores equatorial, 3-4, not definite, appearing usually as thin places in the wall; immixed with numerous cylindrical, hyaline paraphyses.

The host is endemic and confined to the South Island (Cheesem. 1925, p.. 923).
The hyaline thin epispore characterizes the species.

Host: Schoenus pauciflorus Hook: f. Cook Range, Canterbury, 700 m., 1/28. G.H.C. Type.

II. Uredosori scattered, seldom confluent, seated on discoloured reddish spots, elliptical, 1-2 mm. long, erumpent, bullate, long covered, ferruginous. Spores elliptical or obovate, 40-48 x 24-28 mmm. ; epispore pallid fuscous, or yellowish-brown, 3 mmm. thick, save at the apex where thickened to 6 mmm. and darker in colour, moderately and somewhat coarsely echinulate ; germ pores equatorial, 3-4, obscure.

The host is endemic and common throughout (Cheesem. 1925, p. 229)