403 DIADELPHIA DECANlfalA. 



DECANDRIA. 

 307. LUPINUS. Lupine. 



JL. perennis : perennial ; root creeping ; stem and leaves srnoothish , 

 leaves digitate ; leaflets 8 9, obcuneate, lanceolate, obtuse ; flowers 

 alternate ; calyx without appendages ; upper lip emarginate ; the 

 lower entire. 



HAB. Sandy woods and hills. May June; stem ascending, 12 in. 

 high ; leaves digitate ; Jlower blue. 



308. CROTALARIA. Rattle-box. 



C. sagittalls: hairy, erect, branching; leaves simple, ovate-lanceo- 

 late ; stipules lanceolate, acuminate, decurrent ; racemes opposite the 

 leaves, about 3-flowered ; corolla smaller than the calyx. 



HAB. Sandy fields and woods. July Aug. 1$ ; stem 12 inches 

 high ; Jlower yellow ; legum. infla., black. 



309. PISUM. Pea. 



P. maritimum : stem quadrangular, compressed ; petioles flat above , 

 stipules sagittate ; leaflets numerous, subalternate, obovate ; pedun- 

 cles longer than the 'leaves, many-flowered. 



HAB. Sandy shores. May July, 1\.\ plant pale green; stei* 

 decumbent ; Jlower blue ; leg. hairy. 



310. LATHYRUS. Vetchling. 



L. palustris : stem quadrangular, winged ; stipules semisagittate, 

 large, ovate, mucronate ; leaflets in three pairs, oblong-ovate, mucro- 

 nate ; peduncles 4 6-flowered, rather longer than the leaves. 



HAB. Wet thickets. June July, 1\. ; stem weak ; leaves broad, or 

 narrow-ovate ; Jlower purple. 



311. VICIA. Vetch. 



V. saliva: flowers mostly by pairs, sessile; legumes erect; lower 

 leaves retuse ; stipules toothed, or laciniate, with a dark spot be- 

 neath. 



HAB. Rocky shores. June,; stem 1 2 feet long; leaves pu- 

 bescent or smooth ; Jlower small, blue. 



312. MELILOTUS. Melilot. 



M. officinalis: legumes naked, 2-seeded, rugose; leaflets ovate-oblong, 



dentate ; stem erect. 



HAB. Wet meadows. Aug. cf J stem 23 feet high ; Jlower 

 in Idng racemes. Plant odor. . 



