Orton: Notes on Polemoniaceous Rusts 175 



The fungus was collected on a Gilia spec, growing on rocks at an 

 alt. of 7-8000 ft. on Snow Mt., in the Coast Range of Lake 

 County in northern California. Snow Mountain is one of the 

 highest elevations in the Coast Range as far as I know." Prof. 

 T. S. Brandegee writes that " Snow Mountain is a well known 

 high mountain situated at the corner of Lake and Mendicino 

 Counties, California." It seems probable therefore that in some 

 way the locality for the type collection of P. giliicola was con- 

 fused by Hennings with that of P. Purpiisii which would account 

 for the discrepancy in localities on the different packets. The 

 specimens in all the packets considered here are identical. 



The host of P. giliicola is an acerose leaved plant, small and 

 apparently well adapted for dry climates. The rust is in the ad- 

 vanced telial stage only and the sori are not noticeably plumbeous. 

 The spores average a little narrower than those of Allodus 

 Giliae being 15-21 X 32-45 and are practically smooth. In this 

 respect it compares favorably with collections on Leptodactylon 

 Nuttallii, Microsteria gracilis and Linanthiis ciliatus. Many 

 taxonomists would consider this a distinct species but I believe it 

 to be only a depauperate form of A. Giliac. The " uredospores " 

 mentioned by Hennings in the published description are appar- 

 ently mesospores or single cells of broken teliospores as no ure- 

 diniospores have been found after several careful examinations. 



Aecidium patagoniciim Speg. Anal. Mus. Nac. Buen. Aires 3''. i : 



66. 1902 



Spegazzini described this Aecidium on living leaves of Collomia 

 gracilis collected near Carren-leofu, in the summer of 1900 (N. 

 Illin.). He says this Aecidium appears with Puccinia Patagonica 

 and it is probable that the two stages belong together. The type 

 of A. patagoniciim has not been seen but Spegazzini gives the 

 measurements of aeciospores as 14-16 which compare closely 

 with those of Aecidium Giliae Peck. 



Following is a list of synonymy and host plants of 



