Plants of British Guiana coll, by J. S. Do La Cruz (Bupatorieae 
of third and fourth distribution) 
Let. by B. L. Robinson, June, 1923. 
1705 Mikania Ruiziana Poepp. 
1820 " micrantha HBK. 
1941 " " 
2121 " 
2153 ” Ruiziana Poepp. 
2206 ” rt " 
2545 Ageratum conysoides L. 
2710 Rupatorium odoratum L. 
2792 " ” 
£815 Mikania trinitaria LC. 
2823 " 
2968 " micrantha HBK. 
2976 ” trinitaria I»C. 
3039 Ageratum conyzoides L. 
3040 Supatcrium odoratum L. 
3048 Mikania Pakeriana LC. 
