jusTiciA. DIANDRIA. MONOGYNIA. 17 



lower 3-cleft. Anthers 1 or 2 on each filament.* Cap- 

 sule attenuated, 2-celled, 2-valved. Dissepiment grow- 

 ing from the centre of each valve. Roem. t? 

 Schult. Gen. 79. JVutt. Gen, I. p. 11. Justi- 

 ciA ScDiANTHERA jLzw. Ge?t. pi, 35 h 36. Lam. 

 III. t. XII. f. 1, 2. Nat. Ord. AcANTHACEiE Juss. 



J. pedunculosa Mich,: spikes axillary; peduncles 

 elongated, alternate ; flowers crowded ; leaves lanceolate. 

 Mich. Fl.\.i).7. Pursh Fl.l.p.\3. Elliott Sk.L 

 p. n. Roem. ir Schult. I. p. 154. J. americana 

 Vahl EnumA. p. 140. Willd. Spec. I. p. 92. Dian- 

 THERA americana 'Lin. Sysl. Veg. 64. Gr on. Virg. p. 6. 

 D, ensiformis Walt. Car. p. 63. JviT. li7iearifolia Lam. 

 III. I. p. 41. Gratiote affinis floridana, &;c. P I u k. Amalth. 

 p. 114. t. 423. f. 5. 



Root perennial, creeping. Slem 2 or more feet in height, an- 

 gular, and deeply sulcate. Leaves 6 inches long, narrow- 

 lanceolate, opposite, smooth and entire, narrowed at the base 

 into a short petiole. Flowers in oblong terminal heads. Pe- 

 duncles 3 — 6 inches long, straight, angular. Bracts and segments 

 of the calyx subulate. Corolla pale purple, about half an inch 

 long, smooth ; upper lip deeply emarginated ; lower lip with 3 

 nearly equal rounded divisions. Filaments as long as the tube 

 of the corolla ; anthers 2, alternately inserted on the filament, 

 large and oblong. Style filiform, exserted ; stigma minute. 

 Hab. In slow-flowing streams, and along the margins of large 

 rivers. In the Niagara River, near the Falls. Coo fie r. 

 In bays and slow-flowing waters of the rivers St. LawrencCj 

 ■ Oswego, See. Pttrs A. In Pennsylvania. Muhlenberg. 



15.UTRICULAR1A. L. 



Calyx 2-leaved, equal. Corolla personate or ringent ; 

 superior lip erect ; lower lip spurred at the base ; pa- 

 late subcordate. Filaments incurved, bearing the an- 

 thers within the apex. Stigma 2-lipped. Capsule 1- 

 celled. Gen. pi. 4>l. JVutt. Gen. I. ip- '^2- J^^^^- 

 p. 98. Roem. b' Schult. Gen. 88. Lam. III. 

 t. XIV. Nat. Ord. Lysimachi^ Juss. Primu- 

 LACEJE R. Br ow?u Bladder-ivort. 



1. V.inflata Walt.: floating; scape many- flowered . 

 radical leaves verticillate, inflated, pinnatifid at the exlremi- 



• " Anthers biloculares, loculis insertione sspe inequaVibus." Ji. 

 Rro-.on. 



