6 ERYTHEA. 



Cercospora Eriogoni, E. & E. Ou leaves of Eriogonum 

 moUe, Lower California. A. W. Anthony. 



Hypophyllous, in small, sooty-black, scattered patches scattered 

 irregularly, leaves marked above with dark brown subindefinite 

 spots. Hyphre subdecumbent, sending up erect branches more or 

 less divided above, subhyaline at first, becoming dark brown and 

 multiseptate. Conidia cylindrical, nearly straight, dark brown, 

 multiseptate, 35-55x4/^. Approaches Helmintho^ioriimi. 



Puccinia 5erjaniae, E. & E. On Serjania, Pescadero, Lower 

 California, September, 1893. A. W. Anthony. 



Ill, Sori in small (2-3 mm.) orbicular groups, depressed-hemis- 

 pherical, nearly black, naked, hypophyllous; marginal sori immature, 

 smaller, and paler, giving the appearance of a pallid margin. 

 Teleutospores elliptical, bi'own, scarcely constricted, epispore thick, 

 smooth, not much thickened at the apex, 25-40x15-20,^. Meso- 

 spores (spores without septa) much more numerous, and mostly 

 smaller, elliptical, 22-30x15-20/^-, all on slender pedicels, 50-60/j'. 

 long, attenuated below. The leaves are marked above, opposite the 

 clusters of sori, with round pallid spots darker in the center. 



Puccinia transformans, E. & E. On Tecoma Stans, San 

 Felipe, Lower Californiti, September, 1893. K. Brandegee (No. 9). 



III. Causing swellings 1 cm. long and 2-3 mm. thick on the peti- 

 oles, and transforming the young leaves into an oblong-cylindrical, 

 amorphous mass, 1 cm. (or more) long by 2-3 ram. thick. The 

 teleutospores form a thin, cinnamon-colored layer on the surface of 

 these deformations without any distinct, definite sori. They are of 

 an oblong-elliptical shape, pale brown, slightly constricted, rounded 

 at the ends, with the epispore scarcely thickened at the apex, jind 

 muriculately roughened, more distinctly so when dry, 22-35x13-16//, 

 with or without a small papilla at the apex. Pedicels very short, 

 almost none, and soon disappearing. 



P. ornata, Hark., on the same host, has hypophyllous, pulvinate 

 sori, lias teleutospores 50-70x30-40// on long pedicels with verticil- 

 late processes above, and must be very different from this. 



JE,c\d\um Gossypii, E. & E. On leaves of cotton (Gossy- 



