304 PENTANDRIA DIGYNIA. 



r 



S. TniciTsprDATUM. E. 



S. foliis pinnatis ; foli- | Leaves pinnate ,* lowef 

 olis inferiorlbus lanceola- leaflets lanceolate, upper 

 tis, superioribus obovatis, obovate, 3 toothed, 

 tridentatis. E. ( 



S. rigidius, Walt. p. 1 14. . • 



^ Stem 2—3 feet high, terete, glabrous, sparingly branched. Leaved 

 pinnate, 2—5 pair, and an odd one ; leaflets lanceolate, very acute^ 

 sessile, stiniewhat rigid, entire towards the base, all the upper leaflets 

 ciineate and almost equally 3 toothed. Involucrum caducous. Seeds 

 slightly winged, with 3 lines on the back. 



rius plant has much affinity to the preceding species j it appears 

 to ditier m the leaves, which are remarkably toothed in this species, 

 almost 3 cuspidate ; and in the seeds, which are more slightly wingetl, 



damp 



summer 



3. Denticulatum. Bald. 

 ^ S. foliis imparl pinna- | Leaves unequally pin- 



lis; Ibliolis ovalibus, den. nate; leaflets oval, tooth- 



ticulatis, acutis j involu- j ed, acute ; universal in- 



cro universal! diphyllo. | volucrum s leaved 

 Bald. 



Itoot perennial. Stem 3—5 feet high. Leaves alternate, on long 

 petioles, generally with 3 pair of leaflets and an odd one. Leaflets 

 variable m size and form in different plants, irregularly toothed, pale 

 "reen on the upper surface, glaucous on the under. Cniversal invo- 

 ucrum sometimes wanting. Bald.. Dr. Baldwin adds in a subset 

 quent note, that the leaves are sometimes by fours. Styles persis- 



CamdT Jouit;,^GeYr^a!'"'' '""■ '^^^ ""'''''' ^"^^'^""^^^ ^'^''''"^ 



Flowers September— November. 



4. TERETIPOLIU5I. Muhl. Cat. 



S foliis simplicibus, | Leaves simple, terete, 

 teretibus, articulatis, acu- jointed, acute : seeds 

 tis ; semmibus alatis. E. | winged. 



Oenanthefiliformis, Walt.p. 113; 

 O. tarolmensis, Pursh, 1. p. 194. 



t.^ifTH'^^ ^'^!f'" herbaceous, 3-6 feet high, slightly geniculate, 

 S^l tn?r' ^''Ir ' b^*"^'""g near the summit. ''Leives glabrous 



^jreaUd, hollow, with m^ny transver^ membranes (as in Cyperus 



