FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 57 



352. P. foetida, L. (v. Love in the mist). 



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

 St. Croix ; St. Thomas. 



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

 which is edible.] 



. TURNERACE^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 (CowelFs 

 Hill) ' } Buck Island, near St. Thomas. 



CACTACEJ!. 



355. Mamillaria nivosa, Link (Pfeiffer Enum. Cact. 1837, p. 11) (M. iortolensis, 



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. Pope'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. Diltlo). 



Fl. Oct.-July. Berry depressed globose, dark crimson, 1" diam. 

 Pulp red; seeds small, black. On dry hills 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. Naturalized in gardens and near dwellings. St. Croix ; 

 St. Thomas. 



