180 PRACTICAL BOTANY. 



409, A dwarfy evergreen, much branched and tufted. 

 Pod 3- (or 4-) celled. Flowers small, white or rose-color, 2-5 

 in a cluster, from a terminal, scaly bud. Leaves coriaceous, 

 elliptical. Loiseleuria procumbens, Desv. 



A twining, shrubby plant. Anthers sagittate. 

 Pod 2-celled. Leaves ovate, or lanceolate, shining, sliort- 

 petioled. Flowers large, showy, yellow, fragrant, 1-5 to- 

 gether in the axils. Corolla open, funnel-form, somewhat 

 oblique. Style short, with 2 stigmas, each 2-parted. 



Gelsemiuiu sempervirens, Ait. 



410, (355.) Styles and stigmas of the 2 ovaries sepa- 

 rate. Pods utricular, 1- to 2-seedcd, distinct. Stigmas 

 thick. Creeping herbs. Leaves alternate, round-kidney- 

 shaped, pubescent. Peduncles a.villary, 1-ilowered. Corolla 

 small, greenish-white. Dichondra repens, Forst. 



Stigmas and sometimes styles united into one. 

 Leaves entire. Pods elongated 411 



411, Pollen in ordinary grains. Filaments distinct. 

 Anthers sometimes somewhat coherent with the stigma. 



412 



Pollen in masses. Anthers always united with 



the stigma. Filaments commonly monadelphous,- rarely 



distinct. Pods often with warty projections. Seeds with 



a silky tuft. Leaves opposite, Avhorled, rarely scattered. 



414 



41S, Seeds comose. Leaves opposite 413 



Seeds naked. Leaves alternate. Corolla-tube 

 bearded inside, and at the summit also outside. Anthers 

 longer tlian the filaments. Leaves short-petioled, ovate- 

 lanceolate. Flowers pale blue, in terminal panicled cymes. 

 Amsonia Tabemsemontana, Walt. 



413. Corolla bell-shaped, with 5 triangular appendages 

 in the throat. Filaments short, broad, fiat. Style none; 

 siigma large, ovoid, slightly 2-lobed. Leaves ovate or ob- 

 long. Apocynum. 

 Corolla funnel-form, not appendiculate. Filaments 

 slender. Calyx with 3-5 glands at its base inside, its lobes 

 taper-pointed. Anthers arrow-shaped, with an inflexed tip, 

 adherent to the stigma. Twining, slightly woody plants. 

 Leaves oval-lanceolate. Flowers pale yellow, in cymes. 



Forsteronia difformis, A. D. C. 



