812 
13. MICRANTHEMUM Michx. 
Small smooth depressed and tufted or creeping annuals in mud or 
shallow water, with opposite and entire rounded or spatulate sessile 
leaves, minute white or purplish flowers solitary in the axils of some of 
the middle leaves, 4-lobed or parted calyx, short 2-lipped corolla (upper 
lip much shorter than lower or obsolete; lower lip 3-cleft, middle lobe 
longest), 2 anterior stamens with short filaments having a glandular 
(usually basal) appendage, short style with 2-lobed stigma, and a glob- 
ular thin pod. 
1. M. orbiculatum Michx. Creeping freely: leaves roundish, 4 to 8 mm. long: 
pedicels shorter than calyx: corolla white, hardly equaling the 4-cleft calyx; its 
upper lip or lobe manifest.—Extending into Texas from the Gulf States. 
14. SCOPARIA L. 
Much branched undershrubs or herbs, with small and slender-pedi- 
celed flowers in the axils of opposite and verticillate leaves, 4 rather 
broad imbricated sepals, 4-cleft short-campanulate or nearly rotate 
corolla densely hairy in the throat, 4 stamens with distinct anther-cells, 
slightly clavate style with truncate stigma, and a septicidal pod. 
1. S. dulcis L. Annual or suffrutescent, almost glabrous: leaves from oblong- 
spatulate to narrowly lanceolate, tapering at base, the larger serrate and incised: 
corolla white, 6mm. wide.—Along the Mexican border. 
15. CAPRARIA L. 
Herbs or undershrubs, with rather small white or flesh-colored flowers 
on slender often geminate pedicels in the axils of alternate serrate 
leaves, 5 narrow hardly imbricated sepals, 5-cleft short-campanulate 
or nearly rotate corolla, often 5 stamens, sagittate or horseshoe-shaped 
anthers with cells confluent at apex, style with thickened apex and 
2-lobed stigma, and a loculicidal pod. 
1. C. biflora L. Suffruticose, 6 to 12 dm. high, pubescent or glabrous: leaves 
oblong-lanceolate, sharply serrate above the middle: sepals linear-subulate, equal- 
ing the pod.—Southern Texas, along the coast. 
16. VERONICA L. (SPEEDWELL. BROOKLIME.) 
Chiefly herbs, with mostly opposite or whorled leaves, blue, flesh- 
' color or white flowers, 4 (rarely 3 or 5)-parted calyx, rotate or salver- 
shaped corolla with 4-parted border, 2 exserted stamens (one each side 
of the upper lobe of the corolla), anther cells confluent at apex, entire 
style with single stigma, and a flattened pod obtuse or notched at apex. 
1. V. peregrina L. (NECKWEED, PURSLANE SPEEDWELL.) Glandular-puberu- 
lent or nearly smooth, erect, 10 to 25 em. high, branched: lowest leaves petioled, 
oval-oblong, toothed, thickish, the others sessile, obtuse; the upper oblong-linear 
and entire, longer than the almost sessile whitish flowers: pod orbicular, slightly 
notched, many-seeded.—Low grounds, and a weed in damp cultivated soil, more or 
less throughout Texas, 
