188 



POPULAR FLORA. 



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

 more or less adherent to the stigma. Ovaries 2 ; but the stigmas, and often the styles also, 

 united into one ; the fruit two separate pods. Seeds generally many, and with a tuft of 

 down at one end. 



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



Leaves generally in whorls. Shrub, with large rose-colored flowers, (Nerium) ^Oleandek. 



Leaves opposite, evergreen in the common creeping species. Fl. blue, ( Vinca) *Peiuwijsklk. 



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



ers: seeds not tufted, (Amsdnia) Amsonia. 



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



Dogbane. Apdcynum. 



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. androscRmifblium. 



2. Hemp D. or Indian Hemp. 



Stem and branches erect 

 or ascending; cymes few- 

 fiowered ; lobes of the co- 

 rolla not recurved, the 

 tube not longer than the 

 calyx. A. canndbinum. 



«6. Summit of a plant of Duffbaiie, 

 No. 1, with fljwera ant] pods 



467. Flowers, enlarged. 



4ia. Flower wiih ihe corolla cut 

 awHy, 10 show the elumens 



469. The Gtnmens taken Hway,loshow 

 llie pistils i two ovaiit^s, wiili their two 

 brge Bdgmns united into one mass. 



470 AsesLl, with iia luflof long hairs 

 or down at one end. 



71. MILKWEED FAMILY. Order ASCLEPIADACE^. 

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

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

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

 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 common genera may be distiit- 

 guished as follows : — 



Corolla 6-parted, reflexed: five hoods to the stamens, with a horn in each, {AscUpias) Milkweep. 

 Corolla, &o. as in Milkweed, but the hoods without any horn, (Acerates) Gkeen-Milkweed. 



