*gft#* HORTUS .TAMAICENSIS. 257 



calyx double or calycled, outer of five linear scales ; inner also of five, which are 

 Jar>er, membranaceous, whitish. The four or five middle florets of the disk are five* 

 tdetbed ; the rest, nearer to the ray, smaller and four-toothed; germ compressed, 

 style cloven, stigmas slender, reflexed. Female corollets of the ray two-toothed, 

 spreading ; stigma bifid ; fruiting calyx more spreading. Inner seeds of the disk ob- 

 long, compressed, with a membranaceous serrate margin ; outer round, striated, obtuse, 

 toothed, having a point in the middle. Seeds of the female florets compressed, mi- 

 nute, but commonly wanting. No seed-crown. Chaffs linear, but none in the mid- 

 dle. Natrve of the West- Indies, in moist pastures. The genus of this plant is diffi- 

 cult to determine ; for, having no seed-crown, it is not properly a species of verbesina 

 -or bidens, and should rather be referred to anthemis, but the habit is different. Swartz. 



4. PINNATIFIDA. PINNAT1FID-LEAVED. 



Leaves alternate pinnatifid. 

 Stem a fathom high, round, somewhat tomentose, putting forth opposite branches. 

 Leaves somewhat rugged, narrowed at the base, each border decurrent and forming a 

 curled wing, so that die stem is four-winged ; the segments of the leaves serrate. The 

 flowers are numerous, forming corymbs at the top of the stem and branches. Calyx 

 ob-ovate, imbricate ; scales ovate-acute, brown at the top, the inner ones longer ; co- 

 rolla yellow ; females in the ray about fourteen, linear, trifid, with the middle toothlet 

 shorter ; germ in all small, turbinate ; stigmas revolute, yellow ; receptacle flat, chafiSs 

 the length of the florets, keeled, oblong, with a sharp point. Seeds ovate, emargi- 

 ginate, and crowned with two line awns ; the central ones girt longitudinally with t.ve 

 wings, those of the ray with three. Cavanilics. 



s 



VERVAIN. VERBENA. 



Cl. 2, OR. 1. Diandria monogi/nia. Nat. OR. Personatte. 



v Gen. char. Calyx a one-leafed, angular, tubular, linear, five-toothed, perianth j 

 the fifth toothlet truncate, permanent; corolla one-petaled, unequal, tube cylin- 

 drical, straight for the length of the calyx, then widening and curved in ; border 

 spreading, half five-cleft ; segments rounded, almost equal ; stamens two or four 

 filaments, bristle-shape J, very short, lying within the tube of the corolla; two of 

 them shorter, '(when there are four) ; anthers curved in, as many as there are fila- 

 ments ; the pistil has a four-cornered germ ; a simple filiform style the length of 

 the tube ; and an obtuse stigma ; the pericarp is very slender, and scarcely mani- 

 fest, or almost none ; calyx containing the seeds, which are two or four, oblong. 

 Seyen species are natives of Jamaica. 



1. JAMAICENSIS. JAMAICA. 



Verbena folio siib rotunda serratojiore creruleo. Sloane, v. l,p. 171, 

 t. 107, f. 1. Erecta divis(g spicis e divaricationibus supremis as- 

 sitrgentibtts. Browne, p. 115, v. 1. 



Two stamened, spikes very long, fleshy, naked ; leaves spatulate-ovate, serrate, 



stem rough haired. 



'Stem from two to four feet high, very much branched and diffused, suffrutescent at 



the base ; stem and branches rou^ii with hairs. Leaves at the joints opposite, on short 



Vol. II. Kk footstalk*,' 



