DIADELPHIA. DECANDRIA. 109 



segment of the border often elongated; flowers viola- 

 ceous, rarely white, tlie carina often expanding and eject- 

 ing the staniina; the leaves in a few species exhibit a spon- 

 taneous motion. 



Species. l.H. caiiadense. 2.canescens. 3. maryhindt- 

 cum. i. obtusum. 5. ciliafe. Erect and subpilose, slen- 

 der; leaves ternate, approximate, very shortly petiolate, 

 leaflets small, oval, obtuse; stipules subulate; racemes ax- 

 illary and terminally paniculate; articulations of the lo- 

 ment oval, hispid. Hab Near Philadelphia and in New- 

 Jersey, V s. Under this name in Herb. Muhl. A. small 

 and slender species about 2 feel high; stem pilose below, 

 leaves often smooth as well as pubescent, about the same 

 size and form as in Buxus 5<?/jj/»erwren.j, approximating so 

 as to be crowded below; panicle slender and considera- 

 bly branched; flowers proportionabiy small, violet. Allied 

 to U. glabelbim 6. vincVfianim. This species grows in 

 Upper Louisiana as well as in the Atlantic states. 7- g^a- 

 helium. 



8. * Levigatum. Very smooth; stem sample, erect, and 

 somewhat glaucous; leaves t.^rnate, long petiolate, leaflets 

 ovate, acute, stipules subulate, minute and deciduous; pa- 

 nicle terminal, nearly simple; flowers by pairs Ui)on long 

 petioles; bracles ovate, acute, abort '^r than the flower buds. 

 Hab In the forests of Nevi^ Jerse\; rare. Rai);er large, 

 and the smoothest of the Nortli American species Lower 

 petioles about 3 inches long; larger leaflets 3 inches long, 

 and one and a half broad, evcpy wuere pert- ctly smooth, 

 and somewhat glaucous beneath, sometimes eilpric- 

 ovate, constantly diminishing in size upward.-; tht- -.ten^ 

 attenuated into the terminal and racemose panicle, ruchis 

 of the panicle and peduncles minutely pubesceni; lowest 

 segment of the calix conspicuously cl0n.4a.ed. Tlie fruit 

 I have not seen. Allied to H ci(spi(/aUtmy bur piciectly 

 distinct. 9. cusfndatum. H. bracteosvm. s\ cn. Fl. \n.er. 

 2. p. 73. 'iO. panic iiiatum 11. stiirCi.um. Pri. Erect and 

 smooth, stem simple, leaves ternate, S'lbbnear, cor aceous, 

 and ;-eticulately veined, stipules suoulat'^; ractme:^ axilla- 

 ry and terminally paniculate; lomenis incurved, abou' 2- 

 jointed, articidations somewhat lunuiely triangular, and 

 hispid, isthmus fill foimly narrow'-d. Hab. In t'le forests 

 of Xew Jersey; rare. A distinct species, but allied to //. 

 paniculatum. 12. glutinosum. H acuminatum. Mich. 13. nU' 

 .'UJlorum. 



14 * paucifiornm. Decumbent; stem very low and fili- 

 form; leaves ternat , upon very lon:^ petioit-s, leaflets 

 broad-ovate, acuminate, pubescently ciliate, central one 

 rhomboidally dilated; stipules obsolete; raceme terminal 



Vol. II. K 



