462 BOTANICAL GAZETTE [MAY 
that “‘most of them must be common things, as they were picked 
up on weeds.” 
Perusal of the following account will reveal the value of keeping 
rust collecting ‘‘in mind all summer,” even in a region where rusts do 
not flourish. Twenty-two collections are of species that may be 
called widespread and common, most of them on what might be 
designated as weeds, two-thirds belonging to a single species of 
Coleosporium. Although these were well worth collecting to 
illustrate geographical and host distribution, yet the other 18 
collections receive the chief attention, as they embrace 6 new 
species and 6 species not often found. Altogether the 40 numbers 
drop into 21 species of Uredinales, of which about one-fourth require 
to be described as new, as many more are rare and little known 
forms, while only about one-third can be called common. The 
results should be gratifying to Dr. and Mrs. Rose, and certainly 
will be particularly helpful to students of the rust portion of the 
Andean flora. Four species by other collectors make a total of 
25 species here recorded. 
1. COLEOSPORIUM SENECIONIS (Pers.) Fries (on Carduaceae).— 
Senecio adenotrichos DC.,? Palos Quernados, Chile, October 4, H, 
no. 19188; vicinity of Choapa, Chile, October 6, II, no. 19194; 
vicinity of Illapel, Chile, October 6, II, no. 19238; Las Palmas, 
Chile, October 16, II, no. 19363; west of La Ligua, Chile, October 
22, II, no. 19390.—S. fistulosus Poepp. (?), vicinity of Choapa, 
Chile, October 6, II, no. 19196.—S. glabratus H. and A., Los 
Molles, Chile, October 22, II, no. 19398.—S. hakeaefolius Bett., 
vicinity of lapel, Chile, October 6, II, no. 19248; La Serena, Chile, 
October 9, II, no. 19267.—S. thinophilus Phil. (?), vicinity of 
La Serena, Chile, October 10, II, no. 19288.—S. vulgaris L., Santa 
Inez, Chile, October 16, II, no. 19497.— Senecio sp., Cerro Grande, 
Chile, October 1o, II, no. 19495; vicinity of La Serena, October 11, 
II, no. 19312; La Paz, Bolivia, August 15, II, no. 18909. 
It is remarkable that this rust, very common in Europe, should 
be so abundant in Chile, and apparently also in Argentina, while 
it is yet practically a stranger in North America. The aecia occur 
? All collections are to be credited to Dr. and Mrs. J. N. Rose, and for the year 
1914, unless otherwise stated. 
