238 FIELD COLUMBIAN MUSEUM BOTANY, VOL. II. 



practice in the Antilles to plant, or at least transplant, it as an orna- 

 mental shrub. It, however, readily spreads from seed after being 

 planted and the upper station on Loggerhead Key, among the Surianas, 

 is quite possibly due to "seeding in." 

 Cyperus brunneus: 



This species is a quite constant element of the Antillean strand 

 flora from the Bahamian Archipelago through to Vera Cruz, Mexico. 

 The seeds are avevectent, per pedis et intestinis. See concluding para- 

 graph under this head. 

 Dondia linearis: 



See concluding paragraph under this head. 

 Euphorbia, adenoptera: 



See note under Argemone leiocarpa. 

 Euphorbia buxi folia: 



This is the commonest herbaceous species of the Antillean strand 

 flora. Its communication from island to island is accomplished prin- 

 cipally through the medium of the feet of aquatic birds. Once estab- 

 lished it apparently spreads, not only by the catapultic property of the 

 fruits, but also through the drifting of the seed with the shifting sand. 

 Gossypium religiosum: 



See remarks under Boca Grande- Key. 

 Heliotropium eurassavicum: 



See note under Argemone leiocarpa. 

 Hymenocallis caribaea: 



See remarks under Marquesas "E." 

 Ipomoea pes-caprae and Calonyction album: 



I am somewhat in doubt as to whether the fruits of these plants 

 are aquavectent (a method of transportation for which they are well 

 fitted) or whether the seeds are avevectent; the latter, I should judge 

 from the often high location of the species on many rocky Antillean 

 islands, is the more probable. 

 Iva imbricata: 



See concluding paragraph under this head. 

 Jacquinia keyensis: 



This shrub is of very common occurrence upon the eastern keys 

 of Florida and the islands of the Bahamian Archipelago. Notwith- 

 standing the fact that its growth upon Marquesas "E" is unique, and 

 represented by but two specimens, I am inclined to include it among 

 the naturally implanted species. 

 Laguncularia racemosa: 



This species is generally found on the receding border of a man- 



