CunnincuaM.—The Uredinales, or Rust-fungi, of New Zealand. 671 
This species differs from P. tararua G. H. Cunn. in that the latter rust 
possesses fusiform teleutospores. Although showing a general resemblance 
to P. Gentianae Link., this species differs in the thickened, non-apiculated 
apex and attenuated base of the teleutospore. 
I have named this rust in honour of A. H. Cockayne, Government 
Biologist; whose constant advice and assistance have made this work 
possible. 
33. Puccinia tararua n. sp. (Fig. 52.) 
0. A amphigenous, sparse, scattered, immersed, honey- 
coloured 
II. Uredosori amphigenous E caulicolous, scattered or aggregated into 
irregular groups, up to 2 mm. veg pulverulent, cinnamon-brown, 
surrounded by the ruptured а Spores obovate, less со mmonly 
subglobose, 20-30 x 18-23 mmm. ; аран coarsely and sparsely echinulate, 
4 . thick, pale yellow, with one prominent germ-pore on the one face. 
III. Teleutosori amphigenous and caulicolous, scattered, circular, ap 
to 1mm. diam., chestnut-brown, pulvinate, compact, surroun by t 
ruptured epidermis. Spores fusiform, 50-70 x 10-15 mmm. ; apex bluntly 
acuminate or rounded, thickened up to 10 mmm., base vus irm tapering 
gradually into pedicel, both cells same size and colour; slightly or not 
constricted at the septum; epispore smooth, 1 mmm . thick, tinted pallid 
rown, or ochraceous, cell-contents vacuolate ; pedicel persistent, hyaline, 
stout, up to 50 x 10 mmm., continuous with spore ; gee die of upper cell 
apical, obscure, basal pore immediately below septum, obsc 
ost: Gentiana patula Cheesem. On leaves and stems. Hie. No. x y 
II, III. Table-top, Mount Hector (Wellington), 1,170 m., E. H. Atkins 
6 Feb., 1921. (Type.) 
The host is endemic, and in the North Island is confined to the Tararua 
Range; in the South cues e. appears to be common in mountainous 
country (Cheeseman, 1906, p. 452). 
This species is characterized by the thin-walled fusiform teleutospores. 
34. Puccinia Dichondrae Montagne. (Fig. 53.) Convolvulaceae (16). 
Mont., in C. Gay’s Fl. Chile, vol. 8, p. 46, 1852. 2 
Puccinia Dichondrae Berk., Linn. Jour. e "un 13, p. 173, 1872. P. Berkeleyana 
De Toni, in басе. Syll, vol. 7, p. 7 888. P. munita Ludw., Zeits. f. 
оет vol. 2, p.: 133, 1892. 
0. 
ш. Teleutosori amphigenous, chiefly hypophyllous, chocolate-brown, 
circular, minute, up to 200 mmm. diam., pulverulent, at first scattered, 
becoming confluent until finally the whole leaf-surface becomes covered. 
Spores elliptical to subclavate, 30-50 x 15-25 mmm. ; apex T rounded, some- 
times bluntly acuminate, thickened up to 5 mmm., or not thickened, usually 
with a coloured apiculus, sometimes two, base subattenuate, frequently 
rounded, basal cell 5 Ое narrower than the upper; constricted at the 
septum ; epispore smooth, 1-1-5 mmm. thick, golden-brown, aaa 
granular, nuclei conspicuous ; pedicel persistent, hyaline, sometimes tinted, 
ong up to 46 x 5 mmm. ; germ-pore of upper ce ell apical, снай basal 
ore immediately below septum, obscure, both papillate. 
. Mesospores uncommon, elliptical, 21-30 x 15-22mmm.; apex 
rounded and apiculate. 
