THE RUSTS OF NOVA SCOTIA. — B^RASER. 343 



THE RUSTS OF NOVA SCOTIA. 



I'aiiii y 1. COI.HOSroRIACKAI-;. 



Basidia internal, i. e. each original cell soon divides into 

 foui" superimposed divisions (the basidia), each of these 

 germinates Ijv a single sterigma hearing a large basidiospore. 

 Telia waxv. Teliospores compacted laterally into layers, 

 sessile (in all Xorth American sj>ecies) ; w'alls weakly gelatin- 

 ous. 



This family is represented in ISTorth America by one genus, 

 Coleosporium, or according to Arthur's classification by two 

 genera, Coleosporium and Gnllowaya, the life cycle of the latter 

 having only telia. The family is represented in ISTova Scotia 

 ]iy only one species, ami iki uioro are likely to occur ;i.s all the 

 other sjjecies thus far I'cported in T^ortli iVmerica are of a more 

 southern range. It is possible that f'. Camparudac (Pers. ) 

 Lev., wliicli ha-; Ijceii collected in Vermont may yet bo fouuii 



to OCCllI'. 



(■<)I.K(»-I'<»KirM L<v. 



Pyciiia tbiifisli. wirhdut ostiohu- filaments. Aecia with 

 Ia)-_iic pcridiiiiu. Aeci(>s]><)r('s having colourless wall with 

 <]ciisc (lecidiioiis tiil>ercles. Uredinia without pen'idiuni. 

 (ri-i'<liiii<)spi»rcs catcnulato; wall colourless, verrucose, pore^ 

 nb.scure. T(']i:i waxy, usually roundish. Teliospon^s sessile, 

 one-celleil. (aiipcaring four-celled owiu'^- to early division of 

 contenN ) : wall -ninntli, colonidc-^-. iliickcucd :ind gelan'iious at 

 I he ajK'x. 



Coleosporium Soiida^inis (Stluv.) Thuem. 



& 1. On pi II US riaiila .VTill. Periderniliim KriroJiun 

 Fu<l. (S: Earlc. 



TI. T7redini.a mostly iiyp<»|»hyllon.s. sometimes canlicolous. 

 scattered or som(^tinu%s gregarious, small, soon naked. 



