puntandria. digynia; 171 



point, and emarg-inate behind; saccuium empt}-; tube 

 reversed, (compared with Asclepia^,^ &c ) ajipearinf^' like a 

 slender pentag-onal column, supporting- the external part* 

 of fructification, its summit 5-toothed. Antlieridium very 

 short, wings crustaceous; cusps or" the lobes inflected. 

 Pollinia even, 5 pair; lobes nearly sessile, short, compress- 

 ed, and clavate. 

 Hab. From Carolina to Florida, in dry and sandy soil. 



V246. AMSONIA. Walter. 



Calix 5-|)a!'te(l. Corolla fijiinelform, orifice 

 closed. Follicles 2, erect. Seed teirte, naked, 

 and obliqiiely truncated. (Stigma annulate.) 



Leaves alternate; flowers in fastigate or corymbose pa- 

 nicles, n^.ostly blue. 



Species. 1. A.latlfoUa. 2. sulidfoua. Z. angustifoUa. 

 A North American genus. 



247. GELSEMIUM. Jussieii, (Carolina Jessa- 

 mine.) 



Calix 5-leaved, very small. Corolla funnel- 

 form, border spreading, 5-lobed, nearly equal. 

 Capsule compressed and flat, bipartile, biiocu- 

 lar. Seeds flat, attached to the margins of the 

 valves. 



_ A twining evergreen shrub, not lactescent, leaves oppo- 

 site; flowers in small axillary and terminal lascicles, yel- 

 low; calix subtended by imbricated gemmaceous bractes. 



Species. 1. G. nitidum. Flowers fragrant. Anthers 

 oblong-sagittate; style short, bifid; stigmas linear-oblong-, 

 bilobed, pubescent. /3. *ino(lorum. Calix leaves obtuse; 

 flowers inodorous. Near Savaimaii in Georg-ia. 



A North American genus. 



248. GENTIANA. Z. (Gentian.) 



Calix halfo-cleft, or half 5-parted. Corolla 

 tubulous at the base, campanulate, border 4 or 

 5-cleft; divisions ciliate or entire, spreadinji^, 

 erect or connivent, sometimes furnished with 

 intermediate plaits. Stamina 4 or 5, distinct or 

 connate. Capsule 2-valved, 1-cclIed; receptacles 

 2, lojigitudinal. 



