622 
usually furnished with 3 bristles; flowers axillary, disposed in 
small proliferous crowded umbels; stamens protruding beyond 
the corolline tube. &. S. Native of the Moluccas. Perhaps 
the same as S. cristata, Willd. in Roem. et Schultes, syst. 3. p. 
530.? Flowers pale, pink. 
Ribbed-leaved Button-weed. PI. diffuse. 
36 S.? wa‘'na (Roxb. fl. ind. 1. p. 375.) stem erect, simple, 
nearly terete, smooth; leaves petiolate, lanceolate, smooth; 
flowers axillary or terminal, sessile, crowded.—Native of the 
Island of Hominoa. Plant hardly half a foot high. 
Dwarf Button-weed. PI. 4 foot. 
37 S.? uinza‘ta (Roxb. fl. ind. 1. p. 375. but not of Blume,) 
plant erect, branched, pilose; leaves on short petioles, lanceo- 
late-linear, acuminated, lined; stipulas triangular, furnished 
with bristles; peduncles axillary, trichotomous; flowers capi- 
tate; stamens exserted.--Native of the Moluccas. The rest 
unknown. 
Lined-leaved Button-weed. Pl. 1 foot. 
38 S.? Putuipre’nsis (Spreng. syst. 1. p. 401.) stem erect, 
and is as well as the leaves rough ; stipulas toothed ; stamens ex- 
serted ; fruit glabrous.—Native of the Philippines. The rest 
unknown. 
Philippine Button-weed. Pl. 1 foot? 
* * Species natives of the West India Islands. 
39 S. ræ'vıs (Lam. ill. no. 1435. Poir. dict. 7. p. 313. but 
not of Roxb.) glabrous; stem erect, nearly terete, with opposite 
spreading branches ; leaves lanceolate, acuminated, on short peti- 
oles ; flowers sessile, somewhat verticillate ; capsules smooth, ob- 
tuse.—Native of St. Domingo, where it was collected by Martin. 
Sloane, hist. 1. p. 94. f. 2, Said to be nearly allied to S. tendior. 
Flowers numerous. 
Smooth Button-weed, Fl. May, July. Clt. 1820. Pl. 1 foot. 
40 S.? srerza‘ra (Roem. et Schultes, syst. 3. p. 530.) flowers 
terminal, capitate; leaves linear, verticillate.—Native of St. 
Domingo, where it was collected by Poiteau. The rest un- 
known. 
Stellate-leaved Button-weed. Pl. 1 foot ? 
41 S.? rora`ra (Poit. in Reem. et Schultes, syst. 3. p. 275.) 
glabrous ; stems diffuse, ascending, quadrangular ; leaves ovate, 
mucronate ; bristles of stipulas few, naked, short; flowers in 
capitate whorles ; teeth of calyx villous.—Native of St. Do- 
mingo, where it was collected by Martin. Poir. dict. 7. p- 312. 
Whorles of flowers the size of a pea. 
Rotate Button-weed. P]. diffuse. 
42 S.? remora (Lam. ill. 1. no. 1436.) stems straight, rather 
tetragonal, and downy; leaves linear-lanceolate, very rough, 
canescent beneath, shorter than the internodes; whorles of 
flowers dense, distant ; capsules obtuse, villous.—Native of St. 
Domingo, where it was collected by Martin. Poir. dict. 7. p. 
312. Leaves more than an inch long. 
Remote-whorled Button-weed. Pl. 1 foot? 
43 8.2 ocymirézia (Willd. in Roem. et Schultes, syst. 3. p. 
580.) branchlets and under sides of leaves downy; bristles of 
stipulas longer than the whorles of flowers ; stamens inclosed.— 
Native of the West Indies. S. decidua, Bose. The rest un- 
known. 
Basil-leaved Button-weed. PI. 1 foot. 
44 S.? osscu`ra (D.C. prod. 4. p. 556.) glabrous ; stem her- 
baceous, tetragonal; leaves ovate-oblong, attenuated at both 
ends, lined; stipulas connate, ciliated with bristles ; whorles of 
flowers globose ; corollas villous inside; stamens exserted.— 
Native of Cuba and Hispaniola. S. capitellata, Spreng. neu. 
entd. 3. p. 46. exclusive of the synonymes. Fruit unknown. 
Obscure Button-weed. Pl. 1 foot. ? 
RUBIACEA., CLXXXVI. Sprermacoce. 
* * * Species natives of Brazil. 
45 S.? srricdsa (Thunb. et Otto, pl. bras. no. 23. ex flora, 
1821. p. 602. but not of Sims,) stem branched, pilose ; leaves 
ovate, hairy; flowers verticillate.—Native of Brazil. 
Strigose Button-weed. PI. 1 foot. 
46 S.? enurprica (Thunb. et Otto, pl. bras. no. 22. ex flora, 
1821. p. 602.) stem simple, glabrous; leaves elliptic, glabrous ; 
flowers axillary.—Native of Brazil. ; 
Elliptic-leaved Button-weed. PI. 1 foot. : 
47 S.? ceenaròres (Willd. in Roem. et Schultes, syst. 3. p. 
531.) stem herbaceous, scabrous, branched ; leaves lanceolate, 
acuminated, tapering to the base, veiny ; heads of flowers ter- 
minal, involucrated, hairy ; stamens exserted.—Native of Brazil. 
Leaves quite glabrous, ex Spreng. neu. entd. 2. p. 144. but 
rough, ex Spreng. syst. 1. p. 402. Fruit unknown. 
Headed Button-weed. PI. 1 foot? 
48 S. assu’reEns (Ruiz et Pav. fl. per. 1. p. 60. t. 92.) stem 
ascending, branched, tetragonal, having the angles rough ; leaves 
lanceolate, lined, with rough margins ; stipulas sheathing, ciliat- 
ed; whorles of flowers axillary, small, sessile and terminal : the 
latter about equal in size to the axillary ones, and girded bya 
2-leaved involucrum. %.S. Native of Peru, about Lima and 
Huanaco, in waste places, ex Ruiz et Pav. ; and of Brazil, on the 
road to Felisbert, ex Nees et Mart. nov. act. bonn. 12. p. 11. 
Stem purplish. Leaves ovate, lanceolate. Calyx purplish. 
Corollas white or reddish. Said to be allied to S. Portoricensis. 
—Compare Feuill. per. 3. p. 23. t. 40. 
Assurgent Button-weed. Pl. 1 to 14 foot. 
**#* Species natives of Peru, Bogota, and Chili. 
49 §.? rnconspr’cva (Bartl. in herb. Henke, ex D. C. prod. 
4. p. 557.) plant suffrutescent ; branches ascending, sam 
hexagonal, glabrous at bottom, but clothed with powdery dow 
at top; leaves linear-oblong, acuminated at both ends, gabea 
with scabrous edges ; bristles of stipulas longer than the sheat k 
heads of flowers terminal, girded by 4-leaved involucra ; teet 
of calyx 4, nearly equal, acuminated. h. S. Native of pa 
on the mountains. Branches truly tetragonal, but 2 of the sides 
are very narrow, and the other 2 are broader, convex, a 
almost keeled in the centre of the convex part ; therefore pe 
are said to be somewhat hexagonal. The habit is that of Bor 
réria, but the fruit is unknown. f 
Inconspicuous Button-weed. Shrub ascending. ee} 
50 S.? era'cinis (Ruiz et Pav. fl. per. 1. p. 61. t, 92. pe 
plant. herbaceous, glabrous; stem erect, tetragonal, sleni t 
branched ; leaves lanceolate, acuminated, with scabrous pana 
stipulas sheathing, ciliated by bristles; whorles of flowers be 
lary and terminal, small, sessile; fruit hispid. ©. H. Nativ 
of Peru, on the mountains. Flowers white. It is probit i 
species of Borrèria from the fruit being crowned by the 4 tee 
of the calyx; but the habit is almost that of S. tenwor. 
Slender-branched Button-wood. P1. 4 foot. J 
51 S.? Orpexra’npiæ (D. C. prod. 4. p. 557.) plant g'a- 
brous; stem herbaceous, much branched, creeping, filiform ; 
branches opposite ; leaves ovate, on very short petioles, pee 
peduncles 1-flowered, solitary; fruit hispid.— Native of ar 
in humid places and about springs. Oldenlandia uniflora, pr 
et Pav. fl. per. 1. p. 57. but not of Lin. Perhaps a true spect 
of Spermacoce from the cells of fruit being 1-seeded. 
Oldenlandia-like Button-weed. Pl. creeping. 
52 S.? numirv'sa (Willd. in Roem. et Schultes, syst. s p 
530. H. B. et Kunth, nov, gen. amer. 3. p. 349.) stem r $ 
ticose, procumbent, tetragonal, glabrous, with ciliately-serru nie 
margins; stipulas downy, ciliated by bristles; heads of r 
lateral and axillary, pedunculate ; limb of calyx tetragon y 
