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Cayaponia americana (Lam.) Cog 
Thickets: Porto Rico, Culebra, St. Thomas, St. Croix. 
GooDENIACEAE 
Scaevola Plumierii (L.) Vahl. 
andy shores: Porto Rico, St. Thomas, St. Croix. 
AMBROSIACEAE 
Xanthium longirosire Wallr. 
andy places: Porto Rico, St. Thomas, St. Croix. 
CaRDUACEAE 
Vernonia sericea L. C. Rich. 
Thickets: Porto Rico, St. Thomas, St. Croix. 
ee albicaulis Pers. 
Edge of thickets: Porto Rico, St. Thomas, St. Croix. 
Elephantopus mollis H. B. K. 
ry hillsides: Porto Rico, St. lea St. Croix. 
ee Spicatus (Juss.) Ri 
Roa s: Porto Rico, St. ae St. Croix. 
Pes connie L. 
oadsides: Porto Rico, St. Thomas, St. Croix. 
Eupatorium odoratum L. 
s: Porto Rico, Culebra, St. Thomas, St. Croix. 
Coastal cliffs: Porto Rico, Culebrita, St. Thomas, St. Croix. 
Eupatorium portoricense Urban 
t the coast: Porto Rico. 
Mikania cordifolia (L. f. ) Willd 
avines: Porto Rico, St. Thomas St. Croix. 
Erigeron bellioides DC. 
On clay banks: Porto Rico. 
Leptilon canadense (L.) Britton. 
Roadside ditches: Porto Rico, St. Thomas, St. Croix. 
Leptilon bonariense (L.) Small. 
oadside ditches: a Rico. 
ee dioica Vahl 
Coastal cliffs: St. Croix. 
Pluchea odorata (L.) Cass. 
Fields and wet sandy soil near the coast: Porto Rico, Culebra, St. Thomas, 
. Cro 
Pterocaulon ce (L.)} DC. 
Moist land: Porto Rico, St. Thomas, St. Croix. 
Lee Hysterophorus L. 
Vards: Rico, St. Thomas, St. Croix. 
V oe alba 
pee near streams: Porto Rico, St. Thomas, St. Croix. 
Borriehia ee (L.) DC. 
Coastal cliffs and coastal sands: Porto Rico, St. Thomas, St. Croix. 
