FLORA. OF ST. CROIX AND THE VIRGIN ISLANDS. 83 



651. Piiva echinata, Juss. 



Fl. all the year round. Corolla expanded till 10 A. M. A common 

 weed along roads and in gardens. All islands. 



652. Bouchea Ehrenbergii, Cham. 



Fl. Dec. -May. Gregarious along roads and in dry localities, com- 

 mon. St. Croix; St. Thomas. 



653. Stachytarpha jamaicensis, V. (v. Vervain). 



Fl. all the year round. Flower expanded till noon. Pollen 3-4- 

 branched, stellate. Leaves used against fever. Very common along 

 roads and ditches. All islands. 



654. S. strigosa, Valil. 



St. Thomas (Ehrenb. sec. DC. Prodr. xi, 564 5 Gris. Fl. p. 494). 



655. Lippia ttodiflora, Rich. 



Fl. all the year round. Gregarious in moist localities, not uncom- 

 mon. St. Croix (La Keine, Fair Plain). 



656. Lantana Camara, L. (v. Sage). 



Fl. all the year round. Berry considered to be poisonous. On dry 

 hills, very common. All islands. 



657. L. polyacantha, Schauer (DC. Prodr. xi, 597) (L. scabrida, Ait.). 



Fl. all the year round. In dry localities, here and there. St. Croix 

 (St. George) ; St. Thomas (Solberg). 



658. L. involucrata, L. 



Fl. all the year round. Corolla and berry violet. In thickets, com- 

 mon, especially on limestone. All islands. 



659. L. reticulata, Pers. 



Fl. all the year round. On limestone, rare. St. Croix, in stony ground 

 (King's Hill). 



660. Citharexylum quadrangulare, Jacq. (v. Fiddlewood, Susanna). 



Fl. July-Sept. In forests, not uncommon. St. Croix 5 St. Thomas. 



661. C. cinereum, L. (v. Susanna). 



Fl. July-Dec. Leaves of both these species becoming red in Feb., and 

 dropping off at the same time that the new ones make their appear- 

 ance. On young radical shoots the leaves are linear and deeply serrate. 

 The wood is quite useless, even for firewood. In dry thickets and for- 

 ests, common, often gregarious. All islands. 



