398 THE RUSTS OF NOVA SCOTIA. — FKASEK. 



I. Aecia hvpophyllous and petiolicolous in groups on pale 

 yellowish sjiots 1-3 mm. in diameter, hemispherical; pendium 

 poorly developed. Aeciospores globose or ellipsoid, 17-20 by 

 20-30)".; wall ]iale yellowish, medium thick, densely and finely 

 verrvicose. 



IT. Fredinia amphigenous, on yellow or ])ur])le spots, 

 scattered, small ])unctiform, ])ulverulent, cinnamon. Uredinio- 

 s]iores globose or snbglobose, 22-2 7m; wall yellow, finely 

 echinulate. 



TTT. Telia similar to the nredinia bnt dark brown. Telio- 

 spores ellipsoid, rounded at the base and ajiex, slightly con- 

 stricte<l at the septum, 24-30 by 33-54/x; wall uniformly thin, 

 finely but distinctly verrucose; ])edicel hyaline, short, 

 deciduous. 



On Prman'hes aUissima L., New Glasgow, Folleigh Lake. 



This species occurs rather sparingly on its host, Itiit is 

 probably generally distributed. 



Puccinia Onopordi Svd. 



0. Pycnia not observed. 



1. Aecia unknown, probably not formed. 



IT. I^redinia amphigenous, mostly epiphyllous, usually on 

 •pale yellowish spots, small, scattered, pulverulent, soon naked, 

 surrounded by the ruptured epidermis, light brown. Uredinio- 

 S])ores globose or subglobose or ellipsoid, about 27-39iLt in 

 diameter, or 24-80 by 27-35^; wall brown, distinctly but 

 sparsely r-cdiinuiate with fine points. 



TIT. Telia amphigenous, scattfjred on leaves, crowded and 

 abundant on the stem, small and rounded on leaves, soon naked, 

 mostly oblong on the stem and covered fnr some time by the 

 epidermis, at length naked, pulverulent, dark brown. Tclio- 

 spores variable in shnpe. often ellipsoid or oblong, 22-27 by 

 38-54/1*; mostly rounded above, often narrowed toward the 

 base, not or slightly constricted at the septmu ; wall nuif'oi'ni 



