406 XCI. SCROPHULARIACEjE. VERONICA. 



4. V. SCUTELLATA. Skull-cap or Marsh Speedwell. 



Glabrous, ascending, weak ; Ivs. linear or lance-linear, sessile, acute, re- 

 motely denticulate ; roc. in alternate axils, very loose ; pedicels divaricate ; caps. 

 compressed, broadly obcordate. Tj. slender and weak, in swamps and marshes, 

 N. Eng. and Western States, and Brit. Am., common. Stem 1016' high. 

 Leaves (2 3' by 2 3") much longer than the internodes. Peduncles and ped- 

 icels filiform, the latter (6 9") six times longer 'than the bracts. Flowers 

 rather large, flesh-color, with purple lines. Jn. Aug. 



5. V. OFFICINALIS. Officinal Speedwell. 



Roughish-pubescent ; st. prostrate, branched; Ivs. briefly petiolale, and 

 subsessile, obovate-elliptic or oblong, obtuse, serrate, mostly narrowed to the 

 base ; rac. dense, many-flowered ; pedicels shorter than the calyx ; caps, puberu- 

 lent, obovate-triangular, slightly emarginate. Tj. in dry woods and open fields, 

 Can. to Ga. Plant trailing, 6 12' long, with ascending branches. The leaves 

 vary from ovate to obovate, but are generally elliptical, 1 1 \' in length. The 

 flowers are pale blue, forming rather long, axillary, erect, pedunculate spikes. 

 Found in dry woods and open fields. May Jl. 

 * * Raceme terminal. 



6. V. SERPYLLIFOLIA. Thyme-leaved or Smooth Speedwell. 

 Subglabrous, much branched below ; s/s. ascending; Ivs. oval, subcrenate, 



obtuse, lower roundish and petiolate, upper sessile, passing abruptly into ob- 

 long, entire, alternate bracts ; ped. as long as the ovate sepals ; caps, obcordate, 

 broader than long. 1\. Meadows and mountain valleys, in grass, &c., U. S. and 

 Can. Plant varying in height from 3' to 12'. Leaves rather fleshy, 3-veined, 

 orbicular and oval and ovate, 4 12" long, petioles 2". Racemes bracted, 

 rather close in flower, elongating in fruit to 25'. Corolla scarcely exceed- 

 ing the calyx, blue and white, beautifully penciled with purple lines. May 

 August. 



* ** Annual. Flowers axillary, solitary, scarcely racemed. 



7. V. jpEREGRlNA. (V. Marilandica. Willd.} Purslane Speedwell. 

 Ascending, subglabrous ; lowest Ins. petiolate, oval-oblong, dentate-serrate, 



obtuse, upper sessile, oblong, obtuse, serrate or entire, floral ones oblong-linear, 

 entire, longer than the subsessile flowers ; caps, suborbicular, slightly notched,, 

 the lobes rounded. Throughout N. America, in fields or clayey soils. Plant 

 often branched from the base, 4 10' high. Leaves rather fleshy, the upper 

 cauline 6 11" long, floral much smaller. Sepals oblong, longer than the pale 

 blue or white corolla. Capsule hardly broader than long. May, June. 



8. V. ARVENSIS. Field Veronica. Corn Speedwell. 



Puberulent-pilose, simple or branched, erect or assurgent ; Ivs. cordate- 

 ovate, incisely crenate, lower ones petiolate, upper and floral alternate, lanceo- 

 late, crenate, sessile. Frequent in dry fields, N. H. to Car. W. to the Miss. 

 A small, pubescent, pale green plant, 2 6' high. Stem nearly erect, branching 

 from the base, the leaves assurgent. Flowers on short peduncles, corolla shorter 

 than the calyx, pale blue, beautifully penciled with purple lines. May, June. 



/?. 1 (V. renitbrmis. Raf.} Lvs. sessile, reniform, entire. 



9. V. AGRESTIS. Neckweed. Field Speedwell. 



St. procumbent, diffusely branching ; Ivs. cordate-ovate, petiolate, deeply 

 serrate, floral ones lanceolate ; ped. as long as the leaves. In cultivated 

 fields, Can, to Ga. and La. A small, pilose plant, 2 8' long, with a round, 

 leafy, hairy stem, branching mostly at the base. The leaves are roundish- 

 ovate, shorter than their petioles, the upper alternate. Flowers small, light 

 blue, veined, their stalks recurved in fruit. Segments of the calyx fringed, 

 ovate, equal. Seeds concave beneath. May Sept. 



10. V. HEDER.KFOLIA. Ivy-leaved Speedwell. 



Prostrate, pilose ; Ivs. petiolate, cordate, roundish, mostly 3 5-toothed or 

 lobed; ped. scarcely longer than the leaves; sep. triangula'r, subcordate, acute, 

 at length erect. Dry or rocky soils, L. I. to Del. Stem diffusely branched. 

 Leaves rather fleshy, the lower smaller, opposite, upper cauline broadly cor- 

 date or truncate at base, alternate as well as the floral. Calyx somewhat 4- 



