TViiN- HORTUS JAMAICENSIS. 275 



generally to the height of two or three feet above the root ; all the flowers are herma- 

 phro lite, and furnished each with twelve filaments, and a numerous family of gerais or 

 germens. The whole plant has so much the appearance of au arrow-head, that it 

 seems to have exchanged flowers with that plant. Browne. 



WATER- PURSLANE. P r PLlS. 



Cl. 6, OR. 1. Hexandria monogynia-. Nat. or. Calycanlhema. 



Gem. char. Calyx bell-shaped, with a twelve-deft mouth ; corolla six-petals, in- 

 serted into the calyx ; stamens awl-shaped filaments with roundish anthers ; the 

 pistil has an oval germ, a very short style, and orbiculate stigma ; the pericarp a 

 two-celled capsule ; seeds very many. One species is a native of Jamaica. 



TETRANDR1 \. FOUR-STAMENED. 



Hirta, foliis parvis orbicularis, fiot ibus singuldrihm ad alas Browne, 

 p. 145. Ammannia. 



This plant is rare in Jamaica, Browne found it in the mountains between St. Thomas 

 in the Vale and St. Mary's, seldom rising above four inches. Swartz con lets that the 

 corolla, fruit, number, an I habit, do not admit of its r nging i ith epVs. It seems ra- 

 ther to be a hedyotis fsce Eai-wort). He thus describes it " Tne roof consists of glo- 

 bular distinct tubers ; stem sub-divided, divaricated* round ; stipules small, sheathing, 

 acuminate. Leaves sub-sessile, the -upper ones in fours, ovate-cordate, subsoatulate, 

 entire, somewhat hispi I above, smooth beneath Flowers t< rminatin ', peduncled, the 

 size of a pin's head ; peduncles short, one- flowered : p rianth four or five :lt ft uperior ; 

 segments bifid, so that it seems to be eight or ten-toothed, permanent-; corolla one- 

 petaled, ovate, scarcely longer than the calvx, four-parted; segments bhtfit, upright; 

 filaments four, awl-shaped, shorter than the corolla ; anthers ovate, small, concealed by 

 the divisions of the corolla; germ twin ; style cloven almost to the base ; stigmas awl- 

 shaped; capsule twin, globular, two-celled, surrounded and crowned by the calyx, 

 opening at top by four valves ; seeds two in each cell, orbicul; te, covered by the valves. 

 It is an annual plant, native of the West-Indies, in dry shady places at the foot of moun- 

 tains and trees. i'w.irtz. 



Water-Withe See Jamaica Grape. 



No English Name. WFINMANNIA. 



Cl. 8, or. 2. Octandria digynia. Nat. on. Saxifragae. 

 So named in honour of J. W. Weinmann, apothecary at Katisbon. 



Gen. char. Calyx a four-leaved perianth, lea:lets ovate, patulous; corolla four 

 equal petals, bigger than the calyx ; stamens eight erect short filaments, with 

 roundish anthers ; the pistil has a roundish germ ; styles two; length of the sta- 

 mens, -with acute stigmas ; pericarp an ovate, two-celled, two-beaked, capsule ; 

 seeds about eight, roundish. Two species have been iound in Jamaica. 



M Hi 2 1. GLABRA 



