THE RUhTS OF NOVA SCOTIA. — FKASEK, 417 



& I. Pyciiia and aecia on Oxalis coniicuhta L. (^ot 

 colleoted in Xova Scotia). 



II. TJredinia amphigenous, scattered or aggregated, 

 elliptical or oblong, long covered bj the epidermis-, ruptured 

 epidermis prominent, yellowish-brown. Urediniospores glo- 

 bose, sub-globose or elliptical, 24-28 by 27-33/^, wall yellowish- 

 brown, finely and sparingly echinulate, pores 4, scattered. 



III, Telia amphigenous, scattered or somewhat gregari- 

 ous, linear or oblong, long covered by the epidermis, at length 

 naked, compact, black. Teliospores oblong, ellipsoid or 

 obovate, 16-24 by 27-41/x, rounded or obtuse, rarely somewhat 

 acute, base rounded or slightly narrowed, slightly constricted at 

 the septum ; wall golden-brown, moderately thickened at apex, 

 about 2|/u,, smooth ; pedicel tinted, thickened, persistent, usually 

 about the length of the spore or somewhat longer. 



On Zea mays L., Lower Mount Thom. 



In 1904 Arthur (Jour. Myc. 11:65. 1905) sowed aecio- 

 spores from Oxalis corniculata L. on young com plants and 

 produced the uredinia and telia of this rust. In the following 

 year (Jour. Myc. 12:17. 1906) he sowed the teliospores from 

 the corn on Oxalis corniculata L. and aecia followed. Keller- 

 man (Jour. Myc. 12:10. 1906) confirmed the last result, pro- 

 ducing aecia on Oxalis corniculata by solving the teliospores 

 from corn. 



The specimens in my herbarium were collected by Prof. 

 C. L. Moore. 



Puccinia triticina Erikss. 



Puccinia Ruhigo-vera (DC.) "Winter. 



Puccinia Ruhigo-vera Var. Tritici. 



& I. Pycnia and aecia unkno^^'n. 



II. Uredinia amphigenous, mostly epiphyllous, scattered, 

 oblong, small, ferruginous. Urediniospores globose or sub- 

 globose, 20-27/w, sparingly echinulate, yellow. 



