FIGWORT FAMILY 781 



3. E. Parryi (A. Gray) Greene. Stem glandular-]Hiberulent or glabrate, 

 5-10 oni. high; leaves oblong or oblanceolate, 1-2 cm. long; calyx about 8 mm. 

 long; teeth acute, the upper larger, ovate, the rest lanceolate; corolla yellow or 

 pink, 1.5-2 cm. long, narrowly funnelform. Gravelly hills: s Utah — Ariz. L. 

 Son. Ap-Je. 



12. MONNIERA (B. Juss.) P. Br. Water Hyssop. 



Perennial succulent herbs, with creeping or floating stems. Leaves opposite, 

 entire or somewhat toothed, broadest above the middle, palmately veined, ses- 

 sile. Flowers perfect, axillary, solitary, peduncled. Calyx subtended by 2 

 small bractlets; sepals nearly distinct, imequal, the uppermost the broadest. 

 Corolla blue or white, nearly regular, 5-lobed; lobes spreading. Stamens 4, 

 slightly didynamous, included; filaments adnate to the tube of the corolla. Cap- 

 sule ovoid or oval, septicidal, the valves 2-cleft. Seeds numerous. [Herpesles 

 Gaertn.] 



1. M. rotundifolia Michx. Stem more or less densely pilose, creeping or 

 floating, rooting at the nodes; leaves sessile, rounded-obovate or suborbicular, 

 1-2 cm. long; calyx glabrous, 4 mm. long; lobes elliptic, obtuse, the upper larger; 

 corolla white or yellowish, 5-6 mm. long, campanulate; lobes rounded-oval. 

 Herpesles rotundifolia Pursh. Bacopa rotundifolia Wettst. Water: 111. — Va. — 

 Tex.— Mont. Plain. Jl-S. 



13. LIMOSELLA L. Mudwort. 



Low stemless, somewhat succulent annuals, or perennials by means of stolons. 

 Leaves rosulate at the base, narrow, entire. Flowers perfect, solitary on scape- 

 like peduncles. Calyx campanulate, 5-lobed. Corolla nearly regular, open- 

 campanulate, 5-cleft. Stamens 4, with the short filaments adnate to the corolla- 

 tube; anthers confluently 1-celled. Style short; stigma capitate. Capsule 

 2-celled at the base, 1-celled above, many-seeded. Seeds ovoid, rugulose. 



Leaves petioled, with spatulate or oblanceolate blades. 1. L. aquatica. 



Leaves liaear-flliform, or subulate. 2. L. tenuifolia. 



1. L. aquatica L. Small annual, with runners; leaf-blades 0.5-3 cm. long; 

 glabrous; j)edicels 0.5-3 cm. long; calyx 1-1.5 mm. long; teeth triangular, acute ; 

 corolla 2-2.5 mm. long, exserted, white or purplish. Water and mud: Lab. — 

 Colo. — Calif. — B.C.; Eurasia. Plain — Mo7it. Je-0. 



2. L. tenuifolia Wolf. Minute annual, with runners; leaves 1-3 cm. long; 

 pedicels 1-2 cm. long; calyx 1-2 mm. long; lobes ovate, acute, corolla 2.5-3 mm. 

 long. Mud and shallow water: Lab. — N.J. — N.M. — Calif. — B.C.; Eurasia and 

 S. Am. Plain — Mont. Je-N. 



14. GRATIOLA L. Hedge Hyssop. 



Annual or perennial, somewhat succulent herbs. Leaves opposite, entire or 

 toothed. Flowers solitary on axillary pedimcles. Calyx usually subtended by 

 2 bractlets; sepals 5, nearly distinct. Corolla white, yellow, or purplish, 2-lipped. 

 Stamens 2, included; staminodia 2, scale-like or filiform, or wanting; anther- 

 sacs transverse, separated by a dilated membranous connective. Capsule glo- 

 bose or ovoid. Seeds striate. 



Flowers without bracts. 1. G. ebracteata 



Flowers subtended by a pair of bracts similar to the caly.x-lobes. 2. G. virginiana. 



1. G. ebracteata Ben'th. Stem 0.5-2 dm. high, leafy, glabrous or nearly 

 so; leaves sessile, linear or lanceolate, 1-3 cm. long, entire or sparingly denticu- 

 late; sepals foliaceous, 6-8 mm. long, lanceolate; corolla yellowish, equalhng the 

 calyx. Wot ])laces: B.C. — Mont. — n Calif. Suhmoid. Ap-Au. 



2. G. virginiana L. Stem 1-2 dm. high, viscid-puberulent or glabrate below; 

 leaves usually glabrous, oblong-lanceolate to linear, 1-5 cm. long, entire or 

 denticulate, sessile; bractlets 2, linear, 5-6 mm. long; calyx about 5 mm. long; 

 sepals lanceolate; corolla light yellow or nearly white, 8-10 mm. long. Mud and 

 shallow water: Me. — Fla. — Calif. — B.C. Plain — Submont. My-0. 



