164 DIADELPHIA.— DECANDRIA. 



3. V. Cracca: spikes many-flowered, retrorsely imbri 

 cate, longer than the leaves; leaflets lanceolate, 

 pubescent; stipules semisagittate, mostly entire. 

 HAB. Meadows and thickets. Aug. U . Stem 

 subpubes.; leav. pinnate; fl. sm.,purp. 



I. V. caroliniana: peduncles many-flowered, as long 

 as or longer than the leaves ; flowers distant ; sti- 

 pules ovate-lanceolate, entire; leaflets 3 — 10, el- 

 liptical-lanceolate, rather smooth. 

 HAB. Rocky hills. May— June. U. Stem long, 

 climb. ; fl. small, num., white. 



444. ERVUM. Tare. Leguminosai. 



1. E. hirsutum: peduncles many-flowered; legumes 



hairy, 2-seeded ; leaflets linear-oblong, truncate. 

 HAB. Rocky places, near salt water. May — June. 

 0. Fl. minute, blue. 



2. E. tetraspermum : peduncles mostly 2-flowered 



legume smooth, 4 — 5-seeded ; leaves oblong, trun- 

 cate. 

 HAB. With the preceding. May — June. © . 

 Stem very slend. ; fl. minute, blue. 



445. ASTRAGALUS. Milk-vetch. Le gummosa. 



\» A. carolinianus : caulescent, erect ; leaflets (41) ob- 

 long, pubescent beneath ; spikes pedunculate ; 

 bracts lanceolate, as long as the peduncles ; le- 

 gumes ovate, tumid, rostrate. 

 HAB. Mountains. June — July. U. Spikes dense : 

 fl. num., pale yellow. 



I. A. canadensis: caulescent, diffuse; leaflets (21, 

 smooth on both sides ; legume subcylindrical, niu 

 cronate. 

 HAB. Barren fields. June. U . Stem c 2ft. high ; 

 legume ovate, tumid? ; fl. yell. 



446. MELILOTUS. Melilot. LeguminosdH. 



M. officinalis: legumes naked, 2-seeded, rugose: 

 leaflets ovate-oblong, dentate ; stem erect. 



HAB. Wet meadows. Aug. ©. $. Stem 2 — 3 

 ft. high; fl. yell, in long racem. — Plant odor. 



