Host: Epilobium pube-ns A. Rich. On leaves. Herb. No. 756 II. Tiritea, Palmerston North (Wellington), 300 m., G. H. C. 3 Mar., 1921.

0. Spermogones hypophyllous, flattened, abundant, subcuticular.
I. Aecidia hypophyllous, mostly in two rows corresponding to the white lines of the leaf, 0.25 mm. diam. Peridia hyaline, 1 mm. high, dehiscing by longitudinal fissure or irregular rupture of the. apex, cylindrical, erect, not revolute, margin lacerate, hyaline. Spores obovate or subglobose, 13-22 X 10-14 mmm.; epispore hyaline, finely and moderately verruculose, with an elongated smooth area on one side, 1-1.-5 mmm. thick.
II. Uredosori amphigenous, chiefly hypophyllous, scattered, or frequently crowded in small groups which are seated on irregular discoloured spots, sulphur-yellow, orbicular, 0.1-0.3 mm. diam., bullate, immersed, somewhat pulverulent, opening by an apical pore. Peridia flattened-globose, delicate, hyaline. Spores obovate, polygonal, or elliptical, 15-24 X 10-15 mmm.; epispore hyaline, finely and moderately echinulate, 1 mmm. thick, cell-contents pallid orange; germ-pores indistinct; paraphyses absent.
III. Teleutosori hypophyllous, flattened, 0.25 mm. diam., scattered or confluent, irregular, chestnut-brown, indebiscent. Spores cylindrical or prismatic, 17-35 X 7-14 mmm.; apex obtusely rounded or truncate, thickened to 3 mmm., base truncate; epispore smooth, chestnut-brown, 1 mmm. thick; germ-pore indistinct.

Distribution : Europe; North America.

The host is indigenous, and is widespread; it occurs also in Australia. (Cheeseman, 1906, p. 175.)
In Europe and North America the aecidia occur on Abies pectinata DC. The uredo stage has been described from New Zealand material, but the aecidia and teleuto stages have been described from material kindly supplied by Dr. J. R. Weir (herb. J. R. Weir, No. 11555) and Mrs. F. W. Patterson (U.S. .Dept. Agr. Myc. Exc., Nos. 744, 745).
The uredosori are small and easily overlooked, largely on account of their being immersed in the host tissues; their presence is, as a rule, indicated by the presence of small dead areas on the leaf.

Type: Rust and Smut Fungi; Description: Only the uredinial stage is known on arborescent species in New Zealand; other stages are found on non-woody plants. Uredinia in irregular groups, minute, circular, pale yellow, waxy, up to 0.2 mm in diameter, with a ragged margin; on lower surfaces of leaves. Urediniospores elliptical to obovate, 18–26 × 13–20 μm, inconspicuously echinulate, pale orange in mass.

Distribution: On cultivated hybrid Fuchsia: Auckland, Taranaki, Wellington.; 1st Record: Cunningham (1924a: on Epilobium, as Pucciniastrum epilobii); McNabb & Laurenson (1965: on Fuchsia, as Pucciniastrum epilobii).

Significance: Severe infection leads to defoliation.; Host(s): Fuchsia ×hybrida, F. magellanica, F. procumbens.