188 



POPULAU FLORA. 



the other out) ; the 5 stamens on the corolla alternate "with its lobes; the anthers generally 

 more or loss adiierent to the stigma. Ovaries 2; but the stigmas, and oflcti tlic styles also, 

 united into one ; the fruit two separate pods. Seeds generally many, and with a tul't of 

 down at one end. 



Corolla with a funnel-shaped tube and a wheel-shaped 5-parted border: style one. 



Leaves generally in who.rls. Shrub, with large rose-colored flowers, (Neriiim) *Or,EAXDEK. 



Leaves opposite, evergreen in tiie common creeping species. Fl. blue, ( Vinca) *rKniwiNKLE. 



Leaves alternate, very many, narrow. Erect herbs with pale-blue salver-shaped flow- 

 ers: seeds not tufted, {Ammina) Amsonia. 

 Corolla bell-shaped, white or piukish: style none. Herbs, with opposite leaves. {Ajjucijnuin) Dogbane. 



Do§^baiie. Apocynum. 



1. Spreading D. Branches of the low erect stem widely diverging; leaves ovate or oval ; cymes few- 



flowered; lobes of corol- 

 la recurved ; tube shorter 

 than the'calyx. Thickets, 

 &c. A. androsoemifblium. 



2. Hejip D. or Indian Hejip. 



Stem and branches erect 

 or ascending; cj'mes few- 

 flowered ; lobes of the co- 

 rolla not recurved, the 

 tube not longer than the 

 cah'x. A. canndbinum. 



466. Summit of a plant of Dogbane, 

 No. 1, with flowers and pods. 



467, Floweis, enlaiged. 

 4S8. Flower wiih the corolla cut 



away, to show the stamens, 



469, The stamens taken away, to show 

 the pistils i two ovaiies, with their two 

 iarge stigmas united into one mass. 



470. A seed, with its tuft of long hairs 

 or down at one end. 



71. MILKWEED FAMILY. Order ASCLEPIADACEtE. 



Plants with milky juice, tough bark, and in other respects like the Dogbane fiimily, but 

 with the 5 short stamens all united by their filaments into a ring or tube, the anthers grown 

 fast to the large stigma, and the grains of pollen in each cell cohering into a waxy or tough 

 mass. Flowers in simple umbels. Pods a pair of many-seeded follicles : seeds furnished 

 with a long tuft of silky down at one end (Fig. 229). The flowers in this family are 

 curious, but are too difficult for the beginner. The two conmion genera may be distin- 

 guished as follows : — 



Corolla 5-parted, reflexed: five hoods to the stamens, with a horn in each, (Asdepias) 1\Iilkw^eed. 

 Corolla, &c. as in Milkweed, but the hoods without any horn, {Acerates) Gp.een-Milkweed. 



