FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 37 



14-2. Triphasia trifoliata, DC. (v. Sweet Lime). 



Fl. April-Juno. Naturalized in thickets and near dwellings. Com- 

 mon in all the islands. 



[Cultivated species: Mnrraya exotica^ L. (v. Cyprian), and Coolia 

 2)unctata, Eetz.] 



OXALIDACE^. 



143. Oralis Martiana, Zucc. 



F\. i^Iay-Aug. Naturalized in gardens on all tLe islands. 



144. O. ccrniculata, L. /3) microphylla, Poir. 



n. all tlie year round. Gregarious in fields. — St. Croix ( Annally) ; 

 St. Thomas. 



ZlGOPIIYI^LACEiE. 



145. Tribulus cistoides, L. 



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

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



146. T. maxiinus, L. (v. Ceiitipee-root, Longlo). 



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

 whole plant is used in baths against boils. A A^ery common weed along 

 roads and in waste places. — All islands. " 



147. Guajacum ofEcinalc, L. (v. Lignum vitije, Poel<euliolt.). 



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

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



143. Pilocarpus racemosus, Vabl. 



Fl. Feb.-March. Leaves undivided, 3-foliate or imi^ari-pinnate in 

 the same sjiecimen (as stated in ITook. & Beiith. Genera, i, 299, and Fl. 

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

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

 (Specimen from Montserrat in Hb. Ilavn. also named P. JanrifoUus, 

 Vahl.) 



149. Tobinia punctata, Gr. 



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

 thickets, not uncommon. — St. Croix. 



150. T. spinosa, Dcsv. 



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, o'" long. Seeds black, signing. Rare in 

 forests.— St. Thomas (Flag Uill, 000'). 



