[From the Bulletin o» the Torrey Botanical Club, 48: 18^-201. 26 September 1921 ] 





A rearrangement of the Bolivian species of Centropogon and 

 Siphocampylus 



H. A. Gleasont 



Of forty species enumerated in the following article, six have 

 been known to science for from fifty to ninety years, while thirty- 

 four bear names not over thirty years old. Modern investigation 

 of the two genera begins with Zahlbruckner, who in 1891* de- 

 scribed three new species from the collections of Mandon. In 

 1892 Britton published in his enumerationf of the South American 

 plants collected by Rusby a list of fifteen species and two varieties 

 of these genera, of which eight species and both varieties were 

 described as new. This was followed in 1896 by Rusby 's paper J on 

 the Bolivian collections of Miguel Bang, in which four species 

 were mentioned, including three described as new. Zahlbruckner 

 in i897§ monographed the Lobeliaceae of Bolivia and recognized 

 nine species of Centropogon, of which two were published as new, 

 and twenty species and three varieties of Siphocampylus, of which 

 eight species and the three varieties were regarded as new, making 

 a total of thirty-four. Rusby listed || several species of both 

 genera and described one as new in 1907, and in 1912 described** 



*Ann. K. K. Naturhist. Hofmus. Wien 6: 432-444. 1891. 



f Bull. Torrey Club 19: 371-374. 1892. 



% Mem. Torrey Club 6: 72-74. 1896. 



§ Bull. Torrey Club 24: 371-385. 1897. 



|| Bull. N. Y. Bot. Gard. 4: 400-404. 1907. 



** Bull. N. Y. Bot. Gard. 8: 121-123. 1912. 



[The Bulletin for June (48: 159-188) was issued August 1, 1921.] 



189 



