,^ 



158 MONADELPHIA DECANDRIA. 



loiigatis bifloris ; pe- | long,2 flowered; petals 

 talis obovatis. j obovate. 



I 



Sp, pi. 3. p- 705. Walt. p. 175. Mich. 2. p- 38. Pursh 2. p. 448. 

 Nutt. 2. p. 80. 



Root tuberous, perennial. Stem 6 — 12 inches high, sparingly divided, 

 pubescent with the hairs reflected. Root leaves on long petioles ; stem 

 leaves opposite^, tlie upper pair nearly sessile ; all 5 parted, the lobes 

 obovate, notched and toothed, pubescent. Peduncles few^ terminal, 2 

 flowered. Calyx hairy, conspicuously mucronate. Corolla purple. Fe- 

 tah twice as long as the calyx, not emarginate. 



The flowers of this species are conspicuous and ornamental. 



Grows in the rich oak lands of the upper country. 



Flowers April — IMay. 



SCHRANKIA. Willd. 



■f'± 



^r 



1 



Calyx tubulosus, 5 | Calyx tubular, 5 



~ toothed. Petals 5. 



Stamens 8 — 10 ex- 



clentatus. Petala 5. 

 Stamina 8 — 10 exer- 



ta. Siliqua 4 valvis. 



serted. Pod 4 val 

 ved. 



1. U 



NCINATA.' 



Sp. pi. 4. p. 1043. Pursh 1. p. 305. Nutt. 2. p. 81, 

 Mimosa Intsia. Walt. p. 252. 

 Mimosa horridula. Mich. 2. p. 254. 



Moot perennial. Stem herbaceous, prostrate, 2 — 3 feet long, angled, 

 thickly armed with retrorse uncinate prickles. Leaves alternate, abruptly 

 bipinnate. Common petioles about 3 inches long, angled, prickly and gla- 

 brous like the stem, pinnate, opposite. Leaflets small, nearly elliptic, gib- 

 bous at base, thinly sprinkled with hair, irritable, closing at the touch as 

 quickly and as completely as any species of the Mimosa. Flotvers nu- 

 merous, aggregated in spherical heads. Peduncles in pairs, axillary, from 

 1 — 2 inches long, prickly like the stem. Cali/x very minute, 5 toothed. 

 Corolla tubular, small, but many times longer than the calyx, 5 cleft, of a 

 bright purple. Stamens generally about 10,2 — 3 times as long as the 

 corolla, slightly cohering at base. Anthers incumbent, 2 lobed, some- 

 what elliptic, yellow. Germ superior, long, slender. Style as long as 

 the stamens. Stigma simple. Legumcn oblong, prickly, 4 valved- 

 Seeds sexQYti\ in each valve. 



Grows in dry sandy pine baiTcns. 



Flowers from May— July,— perhaps through the summer. 





