FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 91 



738. C. betulinus, Vabl (Symb. Bot. ii, p. 98). 



Fl. all tlie year round. A low shrub, brownish. Common in thick- 

 ets. — All islands. 



739. C. flavens, L. (v. Marau). 



Fl. all the year round. Gregarious on diy hills, also as secondary 

 growth ; very common, and a troublesome shrubby weed. — All islands. 



740. C. discolor, Willd. (Spec. Plant, iv, 352) (C. halmmifer,!..). 



Fl. all the year round. x\long roads in dry localities, common. — St. 

 Croix (eastern part of the island) ; St. Thomas (Hb. Thunb. sec. DC. 

 Prodr. 1. c. p. 615). 



741. C. oval folius, "West. 



Fl. all the year round. Along roads and in waste places, very com- 

 mon. — All islands. 



742. C. lobatus, L. 



Fl. March-Dec. In the same places as the preceding, very common. — 

 All islands. 



743. C. humilis, L. 



St. Thomas (Bertero sec. DC. Prodr. 1. c. G70). 



(An arboreous as yet undetermined Croto7iea, not found in blossom, 

 occurs in a few specimens on Flag Ilill in St. Thomas.) 



744. Aleurites Moluccana, Willtl. (Spec. Plaut. iv, 590) {A. iriloha, Forst.) (v, 



Wahmt). 



Fl. all the year round. ISTatui'alized near dwellings and in gardens. — 

 St. Croix; St. Thomas. 



745. Ricinella pedunculosa, Miill. (Linmea, xxxiv, 153) (Adelia Eidnclla, L.). 



Fl. March-May, i)recocious. Always very spiny. In dry thickets, 

 not uncommon. — All islands. 



746. Argyrothamnia fasciculata, Miill. (Limuea, 1. c. 146) (Ditaxis, Sdil.). 



Fl. Jan.-May and Sept. In thickets, not uncommon. — All islands. 



747. A. candicans, Miill. (DC. Trodr. 1. c. 741) (Argythamnia, Svv.). 



Fl. Sept.-April. Capsule dark blue ; seeds verrucose. In thickets, 

 common. — All islands. 



748. Acalypha chamaedrifolia, Miill. (1. c. 879). /?) genuina (A. reptam, Sw.), 



y) brevipes. 

 Fl. all the year round; female flowers developing gradually. Bracts 

 persistent after dissemination. • On rocks and in crevices, not uncom- 

 mon. — St. Croix (,S); St. Thomas {y). 



