258 BROOKLYN BOTANIC GARDEN MEMOIRS 



On Poaceae: II, III. 



Elymus glaucus Buckl. — Glendale, Douglass Co., July 17, 1914, 



1347- 



The aecial stage of this rust is very common in western Oregon 

 particularly on Hydrophyllum. The uredinial and telial stages are 

 doubtless much more common than the single record above would 

 indicate. The species is very difficult to separate in the uredinial 

 stage from P. Clematidis (cf. 85) and it is probable that some of the 

 collections referred to that species belong here. 



Arthur (Mycol. 8: 139. 191 6) sowed aecia from Hydrophyllum 

 capitatiim on Agropyron tenerum and Elymus virginicus. On the for- 

 mer uredinia and telia developed, and on the latter a few uredinia only. 

 This is the only successful culture with this species, though aecia on 

 other Hydrophyllaceae and on Boraginaceae are referred here on 

 morphological grounds. 



137. PucciNiA MUTABiLis Ellis & Gal. Jour. Myc. 5: 67. 1889. 

 On Alliaceae: 



Allium Geyeri Wats. — Blue Mts., July 5, 1897, W. C. Cusick, 182/. 

 The writer is indebted to Professor Holway for the specimen on 

 which this record is based. 



138. PucciNiA madiae Syd. Monog. Ured. i: 121. 1902. 

 On Carduaceae: 



Madia elegans Don. — Corvallis, June, 1910, 26ig. 

 Madia glomerata Hook. — Corvallis, Aug. 1899, E. R. Lake. 

 Madia sp. — Hood River, June 20, 1914, 3349- 



This species is very close to, and possibly identical with, P. Hemi- 

 zoniae (cf. 113). 



139. PucciNiA OBSCURA Schroet., Pass. Nuov. Giorn. Bot. Ital. I. 



9: 256. 1877. 



Aecidium Bellidis Thiim. Fungi Austr. 635. hyponym. 1873, 

 ■ Puccinia Bellidis Lagerh. Bol. Soc. Broter. 8: 134. 1890. 

 On Juncaceae: 



Juncoides parviflorum (Ehrh.) Coville — Ashland, Jackson Co., 

 Sept. 10, 1914, 2519; Bend, Crook Co., Sept. 11, 1916, J. R. Weir, 

 200; Ukiah, Umatilla Co., Aug. 21, 1903, M. A. Crosby. 



No culture work has been conducted in America. Plowright 

 (Jour. Linn. Soc. Lond. 20: 511. 1884) has shown the aecia to be A. 

 Bellidis, having cultured the species in both directions. Other Euro- 

 pean workers have confirmed Plowright's results (Klebahn, Die 

 Wirtsw. Rostp. 317. 1904). 



