NO. 6 gentry; land plants 19 



COMPOSITAE 



EUPATORIUM ODORATUM L. 



Buccoo Bay, April 20, Elmore Vll. 



Distribution: Widely scattered in mesophytic habitats of tropical 

 America. 

 Parthenium hysterophorus L. 



Scarborough, April 19, Elmore U2; roadside. 



Distribution : Tropics and subtropics of the New World, adventive 

 in the Old World. 

 Vernonia cinerea (L.) Less. 



Scarborough, April 19, Elmore U4; along roadside in dry clay soil, 

 flowers purple. Buccoo Bay, April 20, Elmore V12; in dry clay soil of 

 grassland. 



Distribution : Native of the Old World Tropics, it has become nat- 

 uralized in some American localities, as in the Panama Canal Zone where 

 it is a common weed. 



PANAMA 

 CYATHEACEAE 

 Hemitelia petiolata Hook. 



Barro Colorado Island, May 1, Elmore X3, XI; in moist shaded 

 jungle. 



Distribution: Panama. 



POLYPODIACEAE 

 Acrostichum aureum L. 



Caledonia Harbor, Mt. Vernon, April 3, Elmore L27; in dry shaded 

 open forest at 5 feet elevation ; April 27, Elmore L46, L47. 



Distribution : Tropics of Central America, West Indies, and northern 

 South America. 

 Adiantum lucidum Swartz 



Barro Colorado Island, May 1, Elmore X9, XI 3, X15; in moist 

 jungle. 



Distribution: Central America, West Indies, and Brazil. 

 Adiantum petiolatum Desv. 



Roadside near Gamboa, March 31, Elmore 13; in dry open forest at 

 400 feet elevation. 



Distribution : Central America, from Mexico to Ecuador and Brazil, 

 also in the Australian tropics. 



