PENTANDRIA. MONOGTNIA. 141 



f tttt Flowers pentapetalous, infenor, 



£18. DROSERA. i. (Sun-dew.) 



Calix 5-cleft, persistent. Petals 5. Anthers 

 2-l()bed, .^rowing to the filaments. Germ supe- 

 rior. Style 1. Stigmas 3 or 4 divergent, deeply 

 bifid. Capsule 1 -celled, 3 or 4-valved, many- 

 seeded. Seeds attached to the middle Of each 

 valve. 



Herbaceous; leaves radical, alternate, stipulate, laminae 

 discoid or elong-ated, denticulately ciliated and covered 

 with glandulous, capitate filaments, somewhat resemblin^^ 

 the tentaculi of some marine animals, and capable of slow 

 contraction in order to retain and destroy irritating insects; 

 flowers in cvmose racemes; scape at first circinately invo- 

 lute, petals marcesent. A genus very nearly allied to 

 JDionxa. 



Species. 1. D.rotumUfolia. Obs. Leaf suborbiculate, 

 dilated, petiole elongated, hairy on the upper side; ra- 

 cemes frequently bifid. Segments of the caUx linear-ob- 

 long, obtuse, smooth; petals oblong; stigmata 3 or 4, deeply 

 bifid, apex clavate, capsule 3-valved; seeds very nume- 

 rous, subulately alated, imbricate, longeK than the breadth 

 of the valves. 



2. longifolia. Obs Caudex elongated 4 or 5 inches 

 after the manner of a stem. Leaves 2 to 4 inches long, 

 obovate, disk and ciiiate margin glandular; stipules about 

 10-cleft, capiUaceous; raceme simple; flowers secund; 

 segments of the calix oblong-ovate, obtuse. Seeds ob- 

 long, obtuse, short. Hab. Both these species are com- 

 mon near Philadelphia, but principally in New Jersey. 



S.brevifoUa, Pursh. Obs. Scape 2 or 3 inches high, 

 simple; leaves cuneate, suborbiculate, denticulately ciiiate, 

 disk glanduliferous, marked with an obcordate nerve (as 

 in all the preceding); petiole scarcely longer than the 

 lamina, smooth on the upper side; stipules scario.se, 3 or 

 4.cleft; segments of the calix, which is smooth, and petals 

 oblong-oval, obtuse; stigmata 3, deeply bifid, apex linear, 

 capsule 3-valved; seeds black, minute, shorter than the 

 breadth of the valves, oblong-ovate, obtuse at each extre- 

 mity. — Hab. From North Carolnia to Georgia, on the 

 margins of sandy ponds; often in dry and arid situations. 

 Nearly allied to D* Burmmni of Ceylon and Cochinchina. 



