THE KUSTS OF NOVA SCOTIA. — FKASER. 411 



I. Aecia hjpopliylloiis, rarely caulicolous, on circular 

 yellow spots, short cylindrical, margin recurved, whitish. 

 Aeciospores globose or sub-globose, l7-22/x, orange-yellow, 

 smooth. 



II. Uredinia amphigenous. small, rounded or irregularly 

 scattered, chestnut-brown. Unrediniospores globose, sub-globose 

 or ellipsoid, 19-24 by l'J-30/x; wall light brown, strongly 

 echinulate. 



III. Telia amphigenous, rounded on leaves, oblong or 

 linear on stem, blackish, compact. Teliospores oblong or 

 clavate, sometimes ellipsoid, 18-24 by 27-57/^, truncate or 

 rounded above, sometimes conical, narrowed at base, slightly 

 constricted at the septum ; wall brovTi, much thickened at apex, 

 smooth; pedicel coloured, persistent, thickened, usually shorter 

 than the spore. 



On Galium asyrellum Michx., New Glasgow. 



A collection on July 22 showed the aecia past their prime 

 and uredinia beginning to appear ; another on August 26 

 showed telia developed on the leaves and stem. This rust was 

 only found in one place so that it does not appear to be common. 



Puccinia graminis Pers. 



Puccinia poculiformis (Jacq.) Wettst. 



0. Pycnia in small groups, honey-yellow. 



1. Aecia hypophyllous. usually in small groups on dis- 

 coloured spots, cylindrical, margin white, erect, more or less 

 incised. Aeciospores angular-globose, orange-yellow, becoming 

 pale yellow, 14-1 6/*; wall thin, smooth. 



TI. Uredinia amphigenous, often on culms and sheaths, 

 scattered or grouped, oblong or linear, soon naked, pulverulent, 

 ferruginous, surrounded by the ruptured epidermis. Uredinio- 

 spores elliptic-oblong or obovate, 14-22 by 10-.38/M, brownish- 

 yellow, becoming yellowish, echinulate, pores usually four, 

 equatorial. 



