THE RUSTS OF NOVA SCOTIA. — FRASER. 



875 



IT. Uredinia epiphyllous, scattered or in lines, oblong or 

 linear, ochraceous-brown, pulverulent, surrounded by the 

 ruptured o])i(l!nuis. TJrediniospores mostly globose, 19-24:/*; 

 wall yellowish-bruwu, thick, about 2^|u,. finely and densely 

 verrucose. 



III. Telia mostly epiphyllous, sometimes hypophyllou:^. 

 scattered, often confluent, abundant, rounded oblong or linear, 

 often 1 cm. or more in length, pulvinate, dark brown or black. 

 Teliospores globose, subglobose, obovate or elliptical, 13-22 by 

 19-40/u.; wall dark brown, smooth, thickened at the apex- 

 pedicel hyaline, much longer than spore ; a few two-celled spores 

 present. 



Pycnia and aecia on Atriplex patula L.. A. patula Vai-. 

 hastata (L.) Gray, Pictou, May 21, 1910. (Ohenopodinm 

 album L., shown by cultures, not collected). 



Uredinia and telia on Distichlis spicata (L.) Greene. 

 The life history of this rust was made out by the writer by 

 culture^ during the spring of 1910 (Mycologia 3: 72-74. 1911). 



Sowings of the teliospores were 

 were successful on Chenopodiuvi 

 alburn and Atriplex patula Var. 

 hasiata. Collections of aecia were 

 made on Salicornia europea L. and 

 >Suedia maritima which probably 

 also belong to this rust. They were 

 collected beside the rusted Distichlis 

 and were morphologicary similar to 

 the aecia cm Atriple.v. 



Infectiim experiment* by Arthui' 

 fJour. Myeol. 1:234. 1909) showed 

 that l*uccinin Hubnilann Diet, on DisticJilis spicala has 

 aecia on Chenopodium, Atriplex and other plants. The aecia 

 of both rusts are similar and cannot be separated easily. These 

 facts suggest the possibility that the rusts were once identical 



Uromyces Peckianun. Four telio.s- 

 porcs, two urediiiiospore«. 



