260 DIADELPHIA.— OCTANDRIA. 



OCTANDRIA. 



436. POLYGALA. Milk-wort. Polygalevt. 



P. vulgaris : leaves linear-lanceolate,rather obtuse 

 stem ascending; calycine wings ovate, obtuse, ;t 

 little longer than the capsule ; flowers in a termi- 

 nal raceme. 



IIAB. River banks. H . Stems num. ; Jl. blue, 

 cristate; fructiferous cal. green. + 



P. senega: stems numerous, erect, smooth, simple : 

 leaves alternate, ovate-lanceolate ; upper ones 

 acuminate ; racemes spiked ; calycine wings or- 

 bicular ; capsule elliptical, emarginate. 



IIAB. Woods. June — July. U . Stems 1 ft. high . 

 leav. pale gr. ; jl. wh. 



P. paucifolia : stem simple, erect, naked below ; 

 leaves ovate ; terminal flowers, large, cristate ; 

 radical flowers apterous. 



IIAB. Woods and swamps. May — June. U« Stem 

 3 — 4 m. high; leav. acute ; fl. 3 — 4, purp. 



P. pohjgama: stems numerous; leaves linear-ob 

 long ; attenuate downwards ; racemes terminal and 

 lateral, elongated : flowers sessile ; radical ra- 

 cemes procumbent, with apterous flowers. 



IIAB. Fields. June— July. V. Stems 4— 8 in. 

 high, angular ; Jl. purp. 



V.lutea: stem simple or branched; lower leave- 

 ^pathulate ; upper ones lanceolate ; spike subca- 

 pitate, obtuse; calycine wings ovate, mucronate : 

 bracts shorter than the flowers. 



IIAB. Swamps in pine barrens. June — Oct. * 

 Fl. deep yell. ; heads oblong. 



P. purpurea: stem fastigiately branched ; leaves al- 

 ternate, oblong-linear ; spikes cylindrical-oblong ; 

 flowers beardless ; calycine wings cordate-ovate, 

 twice as long as the capsule. 



IIAB. Wet pine barrens. July — Aug. © . Stem 

 12—18 in. high; fl. subimbric, rose-col. 



P. sanguinea: stem fastigiately branched ; leaver 

 alternate, narrow-linear ; spikes oblong; flower. 



