CUNNINGHAM.— The Uredinales, or Rust-fungi, of New Zealand. 689 
57. Puccinia tasmanica Dietel. (Figs. 4, 75.) 
Diet., Ann. Myc., vol. 1, p. 535, 1903. 
. Spermogones amphigenous and caulicolous, erumpent, scattered, 
honey-coloured. 
Aecidia amphigenous and caulicolous, forming inflated orange spots 
on leaves, and linear inflated and distorted areas up to 10 mm. or more 
in length on the stems, scattered or more commonly closely aggregated. 
Peridia cupulate, up to 300 mmm. diam., margins tinted yellow, strongly 
revolute, irregularly laciniate. Spores subglobose to polygonal, 14-17 x 
12-15 mmm. ; epispore minutely and densely verruculose, 1-1-5 mmm. thick, 
hyaline or tinted yellow, cell-contents orange. 
III. Teleutosori caulicolous, less commonly amphigenous, чер inter- 
mixed with aecidia, forming linear distorted areas up to 2 cm. in length, 
black, pulvinate, compact, for a long time covered, finally бет exposed 
by the epidermis falling away in irregular shreds. Spores elongate-clavate, 
40-60 x 13-28 mmm. ; apex bluntly rounded, commonly truncate, seldom 
acuminate, at times oblique, thickened up to 14mmm., darker in colour, 
base attenuate, basal cell longer, narrower, and lighter in colour than the 
upper; constricted at the septum; epispore smooth, up to 3 mmm. thick 
in upper cell, 1-5-2 mmm. in lower, chestnut-brown, cell-contents vacuolate ; 
pedicel persistent, tinted, stout, up to 60 x 11 mmm., continuous wit 
spore; germ-pore of upper cell apical, obscure, basal pore immediately 
below septum, obscure. 
X. Mesospores common, elliptical to Dre 30-42 x 12-16 mmm. ; 
apex rounded, thickened. 
osts :— 
Senecio lautus Forst. f. On leaves, stems, peduncles, and involucral 
bracts. Herb. Nos. 181, 293, 404. I, III. Wellington Heads, 
E. H. Atkinson! 11 April, 1 1920. I. Cashmere Hills (Canterbury), 
400m., W. D. Reid! 31st July, 1921. Seatoun (Wellington), 
G. H.C. 27 Jan., 1921. 
Senecio vulgaris L On leaves and stems. I, III. Weraroa Versu 
ton). 21 Oet., A: I. Kelburn (Wellington), G; HA0 Јањ, 
June, Oct., Nov., 192 
Distribution: Australia ; Н Taam | 
e host is indigenous and ced = dorsali is a weed common in 
patie: and waste places. One commonly sees “ groundsel " plants killed 
outright by the aecidial stage of this rust. "Although plants of S. lautus 
attacked by the aecidia are distorted and stunted, they are seldom killed 
ou пага This pit differs from P. Senecionis Lib. in the thickened 
4. GyMNOCONIA Lagerheim. | 
Lagerh., Tromosoe Mus. Aarsh., vol. 16, p. 140, 1894. 
Autoecious. Cycle of dero includes 0, I, П. 
. Spermogones columnar, umpent, aparaphysate, өм онген, 
І. Caeomata without NM. aparaphysate ; large, erumpent, indefinite. 
