FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 73 



536. Jacquemontia tamnifolia, Gris. 



Fl. Dec.-Feb. Seeds glabrous, greyish. In thickets, common. All 

 islands. 



537. Convolvulus pentanthus, Jacq. (Jacquemontia violacea, Chois.). 



Fl. Aug.-Dec. In thickets, on hills, common. All islands. 



538. C. jamaicensis, Jacq. 



Fl. Dec.-Feb. In thickets, on the sandy seashore, rare. St. Croix 

 (Sandy Point) ; St. Thomas (CowelPs); Water Island. 



539. C. nodifloms, Desr. (C albiflorus, West) (v. Claslii-mulat). 



Fl. Oct.-March. Common in thickets. All islands. 



540. C. melanostictus, ScM. (Linnaea, vi, 737). 

 St. Thomas (Schl.). 



541. C. sagittifer, HB. Kth. 

 St. Thomas (Schl.). 



542. Evolvulus linifolius, L. 



Fl. Dec.-April. In moist localities, here and there. All islands. 



543. E. mucronatus, Sw. 



Fl. Dec.-March. In marshy soil, not uncommon. All islands. 



544. E. nummularius, L. 



Fl. Xov.-March. Among rocks in shady localities, not uncommon. 

 All islands. 



545. Cuscuta americana, L. (v. Love-weed). 



Fl all the year round. In dry thickets, covering shrubs and trees, 

 often killing them. Very common. All islands. 



(West, p. 271, mentions two species, Convolvulus matutlnus and C. vene- 

 natus 7 as occurring in St. Croix, and refers for their description to Vahl's 

 Symb. Bot. pars 3, as spec. nov. As, however, they are not described in 

 any of YahPs publications, and no specimens are in existence in Hb. 

 Havn., I am unable to say whether they are old species or new ones.) 



[Cultivated species: Ipomcea Leariij Annal. Fl. et Pom. 1840, p. 381, 

 and L Horsfallice, Hook.] 



1IYDROLEACEJE. 



546. Nama jamaicensis, L. 



Fl. March- Aug. Among stones and rocks, a common weed. St. Croix j 

 St. Thomas. 



