IMADELPHIA. DECANDRIA. 1 09 



segment of the border often elongated; flowers viola- 

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

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

 taneous motion. 



Species. \.H. canadense. 2. canesceiis. 3. marylanrK' 

 cum. 4. obtiisjim. 5. ciUafe. - 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, r- s. Under his name in Herb. Muhl. A small 

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

 leaves often smooth as well as pubesce n, about the same 

 size and form as in Buxus semperviren?, approximatmg so 

 as to be crowded below; panicle slender and considera- 

 bly branched; flov/ers proportionably small, violet. Mlied 

 to //. glabellum 6. viridifiorum. This species grows in 

 Upper Louisiana as well as in the Atlantic States. 7- gla- 

 bellum. 



8. * Isvigatnm. Very smooth; stem simple, erect, and 

 somewhat glaucous; leaves temate, long petiolate, leaflets 

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

 nicle terminal, nearly simple; flowers by pairs upon long 

 petioles; bractes ovate, acute, short f-r than the flower buds. 

 Hab In the forests of New Jersey; rare. Rather large, 

 a-nd tiie smoothest of the North American species. Lower 

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

 and one and a half broad, every where perfectly smooth, 

 and somewhat glaucous beneath, sometimes elliptic- 

 ovate, constantly diminishing in size upwards; the stem 

 attenuated into the terminal and racemose panicle, rachis 

 of the panicle and peduncles minutely pubescent; lowest 

 segment of the caUx conspicuously elongated. The fruit 

 I have not seen. Allied to // cuspidatwn, but perfectly 

 distinct. 9. cuspi datum. H. bracteosum. Micji. Fl. \mer. 

 2. p. 73. 10. panicnlatum. IL stHctiim. Ph. Erect and 

 smooth, stem simple, leaves temate, sublinear, coriaceous, 

 and reticulately veined, stipules subulate; racemes axilla- 

 ry and terminally paniculate; loments incurved, about 2- 

 jointed, articulations somewhat Innately triangular, and 

 hispid, isthmus filiformly narrowed. Hab. In the forests 

 of New Jersey; rare. A distinct species, but allied to H. 

 pamcalatum. 12. glutinosum. H- acuminatum. Mich. 13. nu- 

 dijlorum. 



14. * paucifiorum. Decumbent; stem very low and fiU- 

 form; leaves ternate, upon very long petioles, leaflets 

 broad-ovate, acuminate, pubescently ciliate, central one 

 rhomboldally dilated; stipules obsolete; raceme terminal 



Vol. II. K 



