UREDINALES OF THE ANDES, BASED ON COLLEC- 
TIONS BY DR. AND MRS. ROSE 
J. CG: ARTHUR? 
The uredinalean flora of the highlands of western South America 
is a rich and varied one. This can be seen even from the scattered 
literature, for as yet no extended or monographic work covering 
this region has been published. Probably Chile has received the 
most attention, beginning with the 11 species included in LEVEILLE’s 
paper of 1846 on “Descriptions des champignons de l’herbier du 
Muséum de Paris” (Ann. Sci. Nat. III. 5:111-167, 249-304), and 
MontTAGNE’s treatment of the fungi in the eighth volume of GAy’s 
“Historia fisica y politica de Chile,’ issued some 10 years later, 
down to the 21 species of rusts in SPEGAzzINI’s “Fungi Chilenses”’ 
of 1910. The article which includes the greatest number of rusts, 
however, and by far the most important single work treating of the 
Andean Uredinales, is Mayor’s ‘‘Contribution 4 l’étude des 
Urédinées de Colombie” (Mém. Soc. Neuch. Sci. Nat. 5:442-599), 
published in 1913. In this work are 158 species, of which 84 are 
described as new, and most of the species are admirably illustrated 
with drawings of the several forms of spores. Not all of these, 
however, are from the mountainous part of Colombia. A rough 
estimate will place the number of rusts now named from the Andes 
at about 250 species, which is probably not half the total number 
eventually to be found. 
For more than three-quarters of a century explorers and travelers 
have picked up, more or less incidentally, the parasitic fungi of the 
Andes, and when the day comes for a comprehensive and inclusive 
study of all available material, the man who has patience and 
ingenuity to bring together this widely scattered wealth of material 
will find no mean resources for a systematic account of an interesting 
region. Probably specimens oftenest encountered in herbaria are 
* Reprints may be obtained by application to the Botanical Department, Purdue 
University Agricultural Experiment Station, Lafayette, Ind., under whose auspices 
he work was carried on, 
Botanical Gazette, vol. 65] [460 
