DIADELPHIA,— DECANDPJA. 263 



441. PISUM. Pea. Leguminosaz. 



P. maritimum : stem quadrangular, compressed 

 petioles flat above ; stipules sagittate ; leaflets nu- 

 merous, subalternate, obovate ; peduncles longer 

 than the leaves, many-flowered. 



HAB. Sandy shores. May— July: %. Plant 

 pale green ; stem decumb. ; Jl. blue ; leg. hairy. 



442. LATHYRUS. Vetchling. Leguminosce. 



L. palustris : stem quadrangular, winged ; stipules 

 semisagittate, large, ovate, mucronate ; leaflets 

 in 3 pairs, oblong-ovate, mucronate ; peduncles 

 4 — 6-flowered, rather longer than the leaves. 



HAB. Wet thickets. June — July. U . Stem weak: 

 leav, broad, or narrorv-ovate ; jl, purp. 



L. myrtif alius : stem naked, quadrangular; stipule? 

 semisagittate, lanceolate, acuminate; leaflets 4, 

 oblong-lanceolate, acute, mucronate, reticulately 

 veined ; peduncles longer than the leaves, about 

 3-flowered. 



!IAB. Salt marshes. July — Aug. U. Fl. purp. and 

 rose-coloured. 



L. venosus : stem naked, quadrangular; stipules 

 semisagittate, ovate, acuminate ; leaflets numer- 

 ous, (about 5 pairs,) subalternate, ovate, obtuse, 

 mucronate, veined ; peduncles shorter than the 

 leaves ; 5 — 10-flowered. 



HAB. Mountains. July. U. Leaflets large ; jl. 

 purp. 



4 13. VICIA. Vetch. Leguminosce. 



V. sativa : flowers mostly by pairs, sessile ; legumes 

 erect ; lower leaves retuse ; stipules toothed, or 

 laciniatc, with a dark spot beneath. 

 HAB. Rocky shores June. ©. Stem \—'2j(. 



long ; leav. pubes. or smooth ; jl. sm., blur. 

 . V. americana: peduncle- 4 — 10-flowered, shorter 

 than the leaves; Btipules Beraisagittate, denl 

 leaflets 8 — 12, elliptical-lanceolate, obi 

 smo 

 HAB. Shady thickets. June, li . Stem ion 

 distant ; Jl. large, purp. 



