CONTRIBUTIONS FROM THE HERBARIUM OF 

 COLUMBIA COLLEGE.-No. 6. 



An Enumeration of the Plants Col- 

 lected by Dr. H. H. Rusby in 



South America, i885-'86. 



I. 



GENERAL FEATURES OF THE REGION TRAVERSED. 

 ENUMERTION OF THE THALLOPHYTA. 



(Reprinted from the Bulletin ok the Tobeey Botanical Club. Vol XV., No. 7.) 



