264 THE FLORA. 



8 L. Canadcn'se. Canada T. Leaves linear, obtuse. Flowers small, blue, loosely 

 racemed. Stem erect. 



8 L. Elat'ine. Pointed T. Leaves ovate-hastate. Flowers small, yellow, and pur- 

 ple. Stem prostrate. 



3. GRATI'OLA. Hedge-hyssop. 



Calyx nearly equally 5-parted. Corolla upper lip entire or slightly 

 2-cleft, lower 3-cleft. Fertile stamens 2, mostly with 3 sterile filaments. 

 Pod 2-celled, 4-valved, many-seeded. Low herbs with opposite leaves. 

 Peduncles axillary, 1-flowered, usually with 2 bracts near the calyx 

 June-August. 



Flowers on peduncles. Plants weak, smooth, or viscid.... a 

 6 Flowers sessile or nearly so. Plants rigid, bristly-hairy. 8.... 8, 9 

 a Sterile filaments thread-like, tipped with a small head....b 

 a Sterile filaments none, or very minute and pointed.... 5-7 



b Leaves entire or nearly so. Plants smooth 1,2 



b Leaves toothed. Plants generally viscid-downy. Flowers white 3, 4 



1 G. officina'lis. Officinal H. Stem erect. Leaves clasping. Fls. whitish. S. 



2 G. au'rea. Golden H. Stem ascending, branched. Leaves sessile. Flowers 



yellow, showy. 



5 G. visco'sa. Viscid //. Leaves ovate-lanceolate. Sepals and bracts lanceolate. S. 



4 G. ramo'sa. Branching H. Lvs. linear-lance. Bracts minute. Sepals linear. S. 



5 G. sphaerocar'pa. Mound-fruited H. Peduncles not longer than calyx. Pod 



globular. W. [calyx. S. 



C G. Florida'na. Fl/n-ida H. Peduncles long. Corolla four times longer than the 



7 G. Virginia'na. Virginian H. Peduncles long. Cor. twice longer than calyx. 



8 G. pilo'sa. Hairy H. Leaves ovate, toothed. Corolla scarce longer than calyx. S. 



9 G. subula'ta. Awl-lv. H. Leaves narrow, entire. Cor. thrice longer than calyx. S. 



4. VERONICA. Speedwell. 



Oalyx 4-parted. Corolla with a wheel-shaped, spreading, 4-cleft bor- 

 der, the lower segment smallest. Stamens 2, inserted into the tube, pro- 

 jecting. Sterile filaments 0. Pod flattened, mostly obtuse or notched at 

 the apex, 2-celled, few or many-seeded. Mostly herbs, with opposite 

 leaves. Flowers small, solitary, axillary, or racemed, blue, flesh-color, or 

 white. March-September. 



Erect, tall (H-4f.). Flowers in dense terminal spikes 1, 2 



i Low, weak (3-12'). Leaves opposite. Corolla tube very short. . . .a 



a Racc-mes mostly opposite, from the axils of the leaves, sky-blue.... 8, 4 

 a Racemes mostly alternate, from the axils of the leaves, light-colored.... 6, <J 

 a Bacetnes terminal, or the flowers axillary and not racemed b 



