FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 37 



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



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

 mon in all the islands. 



[Cultivated species: Murraya exotica, L. (v. Cyprian), and Cookia 

 punctata, Eetz.] 



OXALIDACE.E. 



143. Oxalis Martiana, Zucc. 



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



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



Fl. all the year round. Gregarious in fields. St. Cfbix ( Annally) 5 

 St. Thomas. x 



ZYGOPHYEEACEJE. 



145. Tribulus 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. maximus, L. (v. Centipee-root, Longlo). 



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

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

 roads and in waste places. All islands. 



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



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

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



RUTACEJE. 



148. Pilocarpus racemosus, Yalil. 



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. 65). Inflorescence terminal and axillary. A low tree. In 

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

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



Yahl.) 



% 



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, 600'). 



