THE RUSTS OF NOVA SCOTIA. — FRASER. 427 



Fernald, C. teneila Schkiihr., C. canescens Var, disjunda, 

 Pictou. 



These uists are placed under this species provisionally until 

 their position is determined by cultures. Some of them may 

 belong to Puccinia Ccvricis-Solidaginis Arth. which has aecia 

 on Solidago species ; probably some belong to P. Caricis- 

 Asteris Arth., while others may have their aecia on Eihes. 

 Culture work is necessary before many of the rusts so common 

 on the sedges can be assigned to their proper species. 



Puccinia angustata Peck. 



0. Pycnia epiphyllous, in small, groups on the spots bear- 

 ing aecia. 



1. Aecia hypophyllous or caulicolous, on yellow, brown 

 or brownish-purple orbicular spots, in small dense groups on 

 the spots, in irregular, larger groups on the stem and petioles, 

 cylindrical, cup-shaj)ed, margin recurved, incised, white. 

 Aeciospores globose or angular-globose, 16-20^1, verrucose, pale 

 yellowish. 



II. Uredinia hypophyllous, often on yellowish areas, 

 mostly arranged in lines, oblong or linear, long covered by the 

 epidermis, pulverulent, light brown. Urediniospores sub- 

 globose, ellipsoid or obovate, 18-22 by 26-3 1/x, wall strongly 

 but sparingly echinulate, yellowish-brown. 



III. Telia similar to the uredinia but black and rather 

 compact. Teliospores clavate or fusoid-clavate, 16-22 by 

 43-73/M, apex truncate, rounded or acmninate, base narrowed, 

 slightly constricted at the middle; wall pale bro^vn, much 

 thickened, up to 14?/, and darker at apex, smooth; pedicel light 

 bro^vn, thickened, persistent, usually a little shoi'ter than 

 spore. 



Aecia on Lycopus americainis L., L. uniforus Michx., 

 Pictou. 



