FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 57 



352. P. foetida, L. (v. Lovo in tlie mist). 



Fl. Sept.- Jan. Protandrous. Ou fences and near ditches, common. — 

 St. Croix ; St. Tliomas. 



[Cultivated species : P. quadrangularis, L. (v. Grenadilla), the berry of 

 which is edibk^.j 



TIJR]\ERACE.E. 



353. Turnera ulmifolia, L. 



Fl. March-Oct. In waste places, common. — All islands. 



354. T. parviflora, Benth. 



Fl. Sept.-Dec. and Jan.-May. Leaves always eglandular ; calyx not 

 tomentose. Gregarious on rocky seashores, rare. — St. Thomas (Cowell's 

 Hill) ; Buck Island, near St. Thomas. 



CACTACE^. 



355. Mamillaria nivosa, Linlv (Pfeiffer Emim. Cact. 1837, p. 11) {M. ioriolensis, 



Hort. Berol.). 

 Fl. all the year round. Flower pale yellow; berry clavate, purple. 

 Seeds brownish. On rocks near the seashore. — Buck Island and Flat 

 Cays, near St. Thomas ; Tortola (Pf.). 



356. Melocactus communis, DC. (v. Poiie's Head). 



Fl. all the year round. Berry clavate, purple, |" long. Seeds black, 

 verrucose. Up to four feet high. On dry hills and rocks, especially 

 near the shore. — All islands. 



357. M. atrosanguineus, Hort. Berol. 

 St. Thomas (Pf. 1. c. p. 44). 



358. Cereus floccosus. Hort. Berol. (v. Dildo). 



Fl. Oct.-July. Berry depressed globose, dark ciimson, Ih" diara. 

 Pulp red; seeds small, black. On dry hiUs in thickets, common. — All 

 islands. 



359. C. armatus, Otto. 



St. Thomas (Pf. 1. c. p. 81). 



360. C. triangularis. Haw. (v. Chigger-apple). 



Fl. July. Berry large, crimson, edible, 5" long, oval. On trees and 

 rocks in forests, not uncommon. — All islands. 



361. C. grandiflorus, Haw. (v. Nightblooming Cereus). 



Fl. May-July. NaturaUzed in gardens and near dwc^Ungs. — St. Croix ; 

 St. Thomas. 



