TROPICAL AMERICAN EUPATORIEAE 31 
to the flora of the country. However, as it contained many erroneous 
identifications and as its carelessly launched nomina nuda have led 
to some wholly mistaken interpretations, it gave Bolivian botany an 
unfortunate start. 
In treating the Compositae for the Flora Brasiliensis Baker made a 
praiseworthy effort to give at least brief hints as to the extra-limital 
distribution of the plants discussed, but although he treats upward 
of 150 Brazilian species of Eupatorium he mentions the Bolivian 
occurrence of only one, E. crenulatum (under the mistaken name of 
E. dendroides). 
The flora of Bolivia was thus almost unknown when Dr. H. H. 
Rusby began in the middle eighties his courageous and energetic 
exploration of the Andes together with the adjacent slopes and low- 
lands in the Department of La Paz. His work was somewhat later 
continued by Mr. Miguel Bang and extended to the Department of 
Cochabamba which is also in the western and more mountainous 
part of Bolivia. The resulting series of plants were of course very 
rich in novelties and have been treated in a succession of important 
papers. The portions of these which refer to Eupatorium are as 
follows: Britton, Bull, Torr. Bot. Club, xviii. 333-334 (1891); Rusby 
Mem. Torr. Bot. Club, iii. no. 3, 52-53 (1893), iv. no. 3, 210-211 
by Prof. Hieronymus and many of them were treated in his paper 
just cited. The collection as a whole was listed by Kuntze himself, 
Rev. Gen. iii (1898), where on pages 146-148 he enumerates twenty- 
seven species, varieties, and named forms of Eupatorium from Bolivia. 
Hieronymus in Engl. Bot. Jahrb. xxix. 15 (1900) ascribed to Bolivia 
as well as Ecuador, and Peru, his E. pteropodum, which has since 
proved to be E. nemorosum Klatt. 
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