FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 37 



142. Triphasia trifoliata, DC. (v. Sweet Lime). 



Fl. April-June. Naturalized iu thickets and near dwellings. Com- 

 mon in all the islands. 



[Cultivated species: Murray a exotica, L. (v. Cyprian), and Coolcia 

 punctata, Eetz.] 



OXALIDACE^E. 



143. Oxalis Martiana, Zucc. 



Fl. May-Aug. Naturalized in gardens on all the islands. 



144. O. corniculata, L. /?) microphylla, Poir. 



Fl. all the year round. Gregarious in fields. St. Croix ( Annally) ; 

 St. Thomas. 



ZYGOPHYLLACEJ;. 



145. Tribulua cistoides, L. 



Fl. all the year round. Along roads and in open spots, gregarious. 

 St. Croix (in the easternmost part of the island only). 



146. T. maxirnus, L. (v. Centipee-root, Longlo). 



Fl. all the year round. Stamens alternately of equal length. The 

 whole i>lant is used in baths against boils. A very common weed along 

 roads and in waste places. All islands. 



i 



147. Guajacum officinale, L. (v. Lignum vitse, Pockenholt). 



Fl. March-April. Common in former times, but now nearly exter- 

 minated. On the seashore and in forests, rare. All islands. 



RUTACEiE. 



148. Pilocarpus racemosus, Valil. 



Fl. Feb.-March. Leaves undivided, 3-foliate or impari-pinnate in 

 the same specimen (as stated in Hook. & Benth. Genera, i, 299, and Fl. 

 Brasil. fasc. Go). Inflorescence terminal and axillary. A low tree. In 

 forests, rare. St. Jan (Kingshill, 1000') ; Vieques (Bavn in Hb. Havn.). 

 (Specimen from Montserrat in Hb. Havn. also named P. laurifolius, 

 Vahl.) 



149. Tobinia punctata, Gr. 



Fl. Sept. Leaves often pinnate. Dots on the leaves pellucid. In 

 thickets, not uncommon. St. Croix. 



150. T. spinosa, Desv. 



Fl. May-June. Leaflets prickly on the principal nerves on both sides, 

 bearing 2 stipular prickles at the base. Carpids 3 (2-1) globose, with a 

 short beak, black, verrucose, 3'" long. Seeds black, shining. Rare in 

 forests. St. Thomas (Flag Hill, GOO'). 



