THE RfSTS OV NOVA sr(>T(A. — FRASER. :iH9 



On Chiogenis hispidula (L. ) T. <&r G., Pieton. Tnn-d. 



The descriptioTi is based on that of Arthur in rhe "North 



American Flora." The collections contained only uredinia. 



but probably telia developed later. The speoies seems to be 

 rather local in its distribution. 



I 



CKONAfrriLM Kiii-s. 



Cycle of development includes pycnia, accia and telia, 

 heteroecious. 



Pycnia broad and flat. 



Aecia with membraneous peridium. rupturing at the sides. 

 Aeciospores coarsely verrucose with deciduous tubercules. 



Uredinia with peridium. T^rediniospores borne singly on 

 pedicels, pores obscure. 



Telia erumpent, the catenulate teliospores adhering to 

 form a long cylindrical or filiform column, horny when dry. 

 Teliospores one-celled. 



Cronartium Comptoniae Arth. 



& I. (Jn Finus rigida Mill., P. virginiami Mill., F. 

 m/lvestris L. CNot collected in Nova Scotia). 



Tf. Uredinia hypophyllous, scattered or gregarious, small, 

 round, dehiscent by a central opening, pulverulent; peridium 

 with polygonal cells, larger at the top with very thick walls. 

 Urediniospores oval or obovate. 13-21 by nO-fiO/n : wall colour- 

 less, tiiick, sy)arsely and finely cchinulate. 



III. Telia columns hy]jophyllous. filiform, about 55-135/^ 

 thick and J-l-j, mm. long Teliospores fusifonn-oblong. 13-1 7 

 by 30-60^1 ; wall colourless, smooth, thin. 



Uredinia and telia on Myrirn Gnlp L.. Pictou. August 2f>, 

 1010. 



