MYCOLOGY 



slit. The teliospores consist of four superimposed cells. There is a 

 North American species of this family, Gallowaya pini (formerly Coleo- 

 sporium pini), which has teUospores only and these on the leaves of 

 Pinus inops, i.e., on trees of the same order on which Coles porimn has 



A 



Fig. 70. — A-D, Uromyces pisi. A, Ascidia on deformed leaves of Euphorbia 

 cyparissias; B, ascidia enlarged; C, teliosori on leaves of Pisum sativum; teliosori 

 enlarged; E and F, Uromyces Irifolii on Trifolium hybridum. {After Dietel, Die 

 natiirlichen Pflanzenfamilien I. lA**, p. 55.) 



its aecia. In Coleosporium, the teUospores are adherent closely with a 

 rounded, thickened, gelatinizing pore. The long sterigmata bear 

 large, ovate, flattened sporidia. The orange rust of asters and golden 

 rods,^'C. solidaginis is reported to cause a sickness of horses, some- 



