1915] 



BRITTON VEGETATION OF MONA ISLAND 41 



CAPPARIS FLEXUOSA L. (C. cynophallophora Jacq.) 



Common on the coastal plain: Porto Rico: Hispaniola; Bahamas. 



LEPIDIUM VIRGINICUM L. 



Common in waste and cultivated ground: Porto Rico; Hispaniola; Bahamas. 



BRASSICA INTEGRIFOLIA (West) O. E. Schulz 



Occasional in cultivated ground, coastal plain: Porto Rico; Bahamas. 



CAKILE LANCEOLATA (Willd.) 0. E. Schulz 



Common on coastal sands: Porto Rico; Hispaniola; Bahamas. 



PITHECOLOBIUM UNGIUS-CATI (L.) Benth. 



Common in coastal thickets and occasional on the coastal plain. All speci- 

 mens examined were spineless: Porto Rico; Hispaniola; Bahamas; Curacao. 



CASSIA OCCIDENTALIS L. 



Sandy soil, Playa de Fajaro: Porto Rico; Hispaniola; Bahamas. 



CHAMAECRISTA GRANULATA (Urban) Britton. (Cassia portoricensis 

 granulata Urban.) 

 Common on the coastal plain and on sand dunes: Porto Rico. 



CHAMAECRISTA DIFFUSA (DC.) Britton. (Cassia diffusa DC.) 



Collected by Professor Stevens, not found by us: Porto Rico; Curacao. 



? CAESALPINIA DOMINGENSIS Urban 



On the plateau, Sardinera. Determined from description: Hispaniola. 



GUILANDINA CRISTA (L.) Small 



Occasional in coastal thickets: Porto Rico; Hispaniola; Bahamas. 



GUILANDINA MELANOSPERMA (Urban) Britton. (Caesalpinia melano- 

 sperma Urban. ) 

 Frequent on the coastal plain: St. Croix. 



GUILANDINA DIVERGENS (Urban) Britton 



Frequent on the coastal plain: Culebra [St. Thomas]. 



KRAMERIA IXINA L. 



Occasional on the coastal plain and on the plateau: Porto Rico; Hispaniola; 

 Curacao. 



INDIGOFERA SUFFRUTICOSA Mill 



Cultivated ground, coastal plain: Porto Rico; Hispaniola; Bahamas; 

 Curacao. 



CRACCA CINEREA (L.) Morong 



Common on the coastal plain and on the plateau: Porto Rico; Hispaniola; 

 Bahamas ; Curacao. 



STYLOSANTHES HAMATA (L.) Taub. 



Frequent on the coastal plain: Porto Rico; Hispaniola; Bahamas; Curacao. 



MEIBOMIA SUPINA (Sw.) Britton 



Frequent on the coastal plain and on the plateau: Porto Rico; Hispaniola; 

 Bahamas ; Curacao. 



MEIBOMIA MOLLIS (Vahl) Kuntze 



Occasional in cultivated ground on the coastal plain: Porto Rico; His- 

 paniola; Bahamas; Curacao. 



BRADBURYA VIRGINIANA (L.) Kuntze 



Common on the coastal plain and on the plateau: Porto Rico; Hispaniola; 

 Bahamas. 



