THE BUSTS OF NOVA SCOTIA. FRASEK. 



the same place, that they were forms of the same species. The 

 connection of the different forms was not well known, nor the 

 nomenclature settled at the time of Prof. Lawson's collection- 

 It may be that both collections belong to G. clavariaeforme. 



GYMNOCONIA Lagerh, 



Aecidia without peridium or enveloping paraphyses,. 

 dehiscing irregularly. Teliospores two-celled. 



Only one species is known. Tt is found in North America < 

 and Europe. 



Gymnoconia interstitialis (Schlect.) Lagerh. 



0. Pycnia epiphyllous. 



L Aeeia hypophyllous, occupying the whole surface of 

 the leaf, large, irregular; peridium absent, epidermis ruptur- 

 ing irregularly, bright orange at first, appearing waxy. 

 Aeciospores subglobose, elliptical or oblong, 15-27 by 25-40/*; 

 wall thin, finely verrucose ; contents orange, fading to colourless. 



II. IJredinia wanting. 



III. Telia hypophyllous, scattered, on irregular or 

 brownish areas, very small, pulverulent, blackish-brown. 

 Telibspores variable, often irregular, upper cell usually 

 triangular, lower quadrangular or irregular; wall rather thin, 

 uniform with papillae at germ-pores, smooth, chestnut-brown;, 

 pedicel hyaline, very slender, short, deciduous. 



On Eubus glandicaulis Blanchard, Pictou, Truro. 



This fungus is common on the species of blackberry named' 

 above. It was not collected on the more common large black- 

 berry which has passed under the 

 name of Rubus villosus. One collec- 

 tion of the aecial sta;e was parasi- 

 tized by a species of Tiiberculina. 

 Teliospores of Gymnoconia In the United States this rust 



interstitialis, , , , . , , 



attacks the cultivated raspberries and 



blackberries and is known as the "orar.ire rust." It does not 

 seem to be troublesome in Nova Scotia. 



