98 FLORA OF ST. CROIX AND THE VIRGIN ISLANDS. 



812. Halophila Baillonii, Ascliers. (in Nenmayer, 1. c. p. 367). 



Pdiizonie creeping, thin. Leaves oval, denticulate, whorled or oppo- 

 site, 3'" long, Ih,'" broad. Monoecious. 



Fl. $ : 3 membranaceous white bracts; 1-3 stamens; filament f" 

 long; anther cylindrical, yellowish, glabrous, 1-celled. Pollen- 

 grains fusiform. 

 Fl. 2 : 3 persistent bracts, as in S . Ovary sessile, ovate, \'" long, 

 - loculate. Style bifid, 2\'" long ; branches pointed, often of 

 unequal length. Capsule oval, glabrous, 2'" long ; seeds about 

 20, globose, hard, tessellate on the surface. Starch-grains trian- 

 gular. 

 Male flowers very rare compared to the number of female ones. 

 Fl. all the year round. Gregarious on the bottom of the seaon coarse 

 coral sand in a depth of from two to four fathoms, here and there. St. 

 Thomas (harbour). 



813. Ruppia rostellata, Koch. 



Fl. all the year round. Gregarious in shallow rivulets, not uncom- 

 mon. St. Croix (King's Hill Gut, in company with a species of Chara) ; 

 St. Thomas (Tutu Gut, Krebs in Hb. Havn.). 



[Another Potamea, possessing a creeping rhizome and delicate linear 

 leaves, has been found by me in the harbour of St. Thomas at a depth of 

 from 3 to 6 fathoms, but on account of only sterile specimens having been 

 obtained it remains as yet undetermined.] 



AROEDEJ;. 



814. Anthurium Huegelii, Schott (v. Boyer) (A. acaule, Sch.). 



. Fl. July-March. Young radical leaves very different from the older 

 ones, being lanceolate and long-petioled. I consider Schott's A. acaule 

 not to be specifically distinct from this species. On rocks and trees, not 

 uncommon, often gregarious. All islands. 



815. A. macrophyllum, Sell. 



Fl. July- Dec. Among rocks in forests, uncommon. St. Jan (near 

 Bethania). 



816. A. cordifolium, Kth. (v. Wild Tanier, Maroon Jancole) (Bot. Mag. t. 2801, 5801 



being a misprint in Gris. Fl. p. 508). 



Fl. July-Nov. Among rocks in forests, gregarious, here and there. 

 St, Croix (Wills Bay, Blue Mountain) ; St, Jan (Macumbi, 1200'). 



817. Dieffenbachia Seguine, Soli. (v. Dumb Cam 1 ). 



Fl. May-Dec. In moist places on hih hills, uncommon. St, Thomas 



(Caret Bay, 1000'). 



