FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 29 



58. Sida jamaicensis, L. 



n. Dec-March. FloAver expanded till A. ]\r. Calyx shorter than 

 the corolla. lu grass-fields and thickets. Often sutirutescent, G' high. 

 Common. — All islands. 



59. S. spinosa, L. a), ft) aiigustifolia, Lam., and 7) polycarpa, l^'^g. 



Fl. Sept.-Marcli. y) snffrutescent, 4' high. Pedicel as long as the 

 whole leaf. Pistils, ovaries, and carx)ids always 12. a) and /?) common 

 in grass-fields and pastures, y) near rivulets. — All islands. 



60. S. rhombifolia, L. (v. Swart Maraii). 7) retusa. 



Fl. Dec-March. Petals showing a purple blot at th*e base. Com- 

 mon in waste places. — All islands. 



61. S. tristis, Schleclit. (Liuna;a, iii, 271). 



St. Thomas (Schl.). 



62. S. supina, L'Her. a) glabra aud ft) pilosa, Egg. 



Fl. Nov.-March. Two very distinct forms : «) in shady, moist places 5 

 ft) in dry localities. Kot uncommon in thickets and forests. — All islands. 



63. S. arguta, Cav. (not S. arguta, Sw., as stated inGiiseb. Sy.st. Unters. j). 31) 



St. Croix (West, 297); St. Thomas (Schl.). 



64. S. nervosa, DC. a) and ft) viscosa, Egg. 



Fl. Dec-April, ft) viscous and glandular pilose. Petals reddish; 

 pistils red. IS^ot uncommon along roads and ditches. — All islands. 



65. S. acuminata, DC. a) macrophylla and ft) microphylla. 

 St. Thomas (Schl.). "Inlocis siccis." 



66. S. cordifolia, L. ft) althaefolia, Sw. 



Fl. March. Here and there along roads. — St. Croix (West, 297); St. 

 Jan (Bethania). 



67. S. humilis, W. (?) Cav. 



St. Thomas (Schl.). "In locis umbrosis." 



68. Abutilon periplccifolium, G. Don. a) aud ft) albicans, cari)id.s 3-ovulatc. 



Fl. all the year round. Seeds dimorphous. The two seeds in the 

 superior cell glabrous, the one in the inferior silky, a) not uncommon 

 along roads. /3) uncommon. — St. Croix (« and ft)) St. Jan [ft). 



69. A. umbellatum, Sw. 



Fl. Dec-March. Seeds cordate, brown. Not very common in open, 

 dry localities. — All islands. 



