20 ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



Adiantum tetraphyllum H. B. Willd. 



Bahia Honda, March 28, Elmore H27 ; in moist shaded forest, 400 

 feet elevation. 



Distribution: Tropical America, Mexico to the West Indies, and 

 Colombia, and Africa. 

 AsPLENiUM pulchellum Raddi. 



Roadside near Gamboa, March 31, Elmore 14; shaded on slope of diy 

 open forest at 400 feet elevation. 



Distribution : Pan-tropics. 

 Bleck ntum occidentale L. forma. 



Bahia Honda, March 28, Elmore EI50. Nature Trail Camp No. 1 on 

 Madden Dam Highway, April 1, Elmore J5. 



Distribution: Jalisco, Mexico south to Bolivia and east to the West 

 Indies. 

 Cyclopeltis semicordata (Swartz) J. Smith 



Nature Trail Camp No. 1 on Madden Dam Highwaj', April 1, 

 Elmore J 5a, J 6. Near Bat Cave on Madden Dam Highway, April 1, 

 Elmore Kl. Barro Colorado Island, May 1, Elmore X4; in moist shaded 

 jungle. 



Distribution: American tropics. 

 Lomariopsis (Stenochlaena) vestita Fourn. 



Barro Colorado Island, May 1, Elmore X17, X19 ; clay soil of moist 

 jungle. 



Distribution : Central America from Honduras to Panama. 

 Pityrogramma calomelanos (L.) Link 



Bahia Honda, March 28, Elmore H26; forest, in moist shaded clay 

 soil. Nature Trail Camp No. 1 on Madden Dam Highway, April 1, 

 Elmore J 14. 



Distribution : Tropical America from southern Mexico to Colombia. 

 Pityrogramma tartarea (Cav.) Maxon 



Bahia Honda, March 28, Elmore H49. 



Distribution: Central America, Nayarit and Vera Cruz south to 

 Panama and the West Indies. 

 Pteridium aquilina caudatum (L.) Sadeb. 



Caledonia Harbor, Mt. Vernon, April 27, Elmore L42; "over 8 feet 

 high." 



Distribution : Panama. 

 Pteris grandifolia L. 



Caledonia Harbor, Mt. Vernon, April 3, Elmore L9 ; in dry, open 

 forest at 10 feet elevation. 



