678 Transactions. 
HI. Teleutosori amphigenous and caulicolous, chocolate-brown, circular, 
scattered, pulvinate, compact, 0-5-1 mm. diam., at first covered, soon 
naked and embedded in tomentum of leaf. Spores elliptical, oblong, some- 
times subclavate, 30-48 x 20-28 mmm.; apex rounded, rarely truncate, 
not thiekened, base rounded, basal cell same size and colour as upper, 
seldom slightly narrower; slightly constricted at the septum; epispore 
verruculose, 2:5-3 mmm. thick, cell-contents granular, nuclei prominent ; 
pedicel persistent, fragile, hyaline, up to 60 x 7 mmm. ; germ-pore of the 
upper cell apical or one-quarter way down one side, conspicuous, basal pore 
one-quarter way below septum, conspicuous, both occasionally papillate. 
ost: Carduus pycnocephalus L. On leaves and stems. Herb. Nos. 210, 
316, 357. Ш. Fitzroy Bay (Wellington), E. Н. Atkinson! 17 Mar., 1920. . 
П, Ш. Cluny, Turakina (Wellington), G. H.C. 2 Jan., 1921. Ш. Dunstan 
Mountains (Otago), 500 m., А. Н. Cockayne! 8 Feb., 1921. П. Walter 
Peak (Otago), 440 m., W. D. Reid! 27 April, 1921. 
istribution : Britain ; Italy ; Asia Minor. 
The host is a thistle common in drier localities throughout New Zealand ; 
it has been introduced from Europe, probably in grass-seed. The rust 18 
common wherever the host occurs; it appears to check seed-development 
in the host, as one commonly finds sterile flower-heads in infected plants. 
I am indebted to Dr. W. B. Grove for the determination of this spectes 
from specimens forwarded; I was under the impression that it was 
P. galatica Syd., but Dr. Grove informs me that in a later publication 
Sydow admitted that the latter name was a synonym. Unfortunately I 
have been unable to obtain access to Sydow’s Monograph. 
_ In his description (of P. galatica) Sydow states that the teleutospore _ 
is finely punctate. Grove (1913, p. 142) states that the'teleutospore 18 
smooth. I find that when the spores are mounted dry and examined they 
are seen to be distinctly verruculose. : 
Characterized by the thick, verruculose epispore of the teleutospore. 
42. Puccinia Chrysanthemi Roze. 
Roze, Bull. Soc. Myc. France, vol. 17, p. 92, 1900. 
Puccinia Chrysanthemi-chinensis P. Henn., Hedw. Beibl., vol. 40, p. 26, 1901. 
0, I. Unknown. | 
II. Uredosori amphigenous, chiefly hypophyllous, sometimes caulicolous, — 
on brown dead spots which are visible on the opposite surface of the le, — 
inna 
ride A 
il 
mec к: Moe persistent, hyaline, stout, up to 8 
rm-pore of upper cell ani T : ; 
septum, Е? apical, obscure, bas»! pore immedia 
