S84 SCROPHULAKIACE^. (FIGWORT FAMILY.) 



2. H. rotundifolia, Pursh. Nearly smooth, creeping; leaves round 

 obovate, half-clasping (i-l' long), entire, basally nerved; peduncles twice or 

 thrice the length of the caljjx ; upper sepal ovate ; corolla white or pale blue. 

 — Margins of ponds. 111. to Minn., Mo., and southward. 



3. H. amplexicaulis, Pursh. stems hairy, creeping at base; leaoes 

 ovate, clasping, entire, basally nerved ; peduncles shorter than the calgx ; upjjer 

 sepal heart-shaped ; corolla blue. — Margin of pine-barren ponds, N. J. and 

 .Md. to La. — Aromatic when bruised. 



* * Corolla obscicrelt/ bilabiate, the limb subequall// 5-lobed ; stamens almost equal. 



4. H. Monniera, HBK. Glabrous, prostrate and creeping ; leaves spat- 

 ulate to obovate-cuneate, entire or somewhat toothed, nearly nerveless, sessile ; 

 corolla pale blue. — Piver-banks and shores near the sea, Md. to Tex. 



11. LI MO SELLA, L. Mudwort. 



Calyx bell-shaped, 5-toothed. Corolla short, widely bell-shaped, 5-cIeft, 

 nearly regular. Stamens 4 ; anthers confluently 1-celled. Style short, club- 

 shaped. Capsule globular, many-seeded ; the partition thin and vanishing. — 

 Small annuals, growing in mud, usually near the sea-shore, creeping by slen 

 der runners, without ascending stems ; the entire fleshy leaves in dense clus 

 iers around the simple 1 -flowered naked peduncles. Flowers small, white oi 

 Durplish. (Name from limus, mud, and sella, seat.) 



1. L. aquatica, L., var. tenuifolia, Hoffm. Leaves (with no blade 

 distinct from the petiole) awl-shaped or thread-form. — Brackish river-banks 

 and shores, Lab. to N. J., and far north and west. (Eu., Asia, etc.) 



12. G RATI OLA, L. Hedge-Hyssop. 



Calyx 5-parted. the narrow divisions nearly equal. L^pper lip of corolla 

 entire or 2-cleft, the lower 3-cleft. Fertile stamens 2, included, posterior; the 

 anterior mere sterile filaments, or wanting. Style dilated or 2-lipped at the 

 apex. Capsule 4-valved, many-seeded. — Low herbs, mostly perennials, some 

 apparently annuals, with opposite sessile leaves, and axillary 1 -flowered pedun- 

 cles, usually with 2 bractlets at the base of the calyx. Flowering all summer ; 

 all inhabiting wet or damp places. (Name from gratia, grace or favor, on ac- 

 count of supposed excellent medicinal properties.) 



§ 1. Anthers ivith a broad connectii'e, the cells transverse ; stems mostli/ dijfusely 

 branched, or creeping at base, soft viscid-pubescent or smooth ; corollas 4 - 6'' 

 long ; bractlets foliaceous, equalling the cahjx. 



* Sterile filaments minute or none ; corolla ichitish, with the tube yellowish. 



\. G. Virginiana, L. Stem clammy-puberulent above (4-6' higli) ; 

 leaves lanceolate with narrow base, acute, entire or sparingly toothed ; 

 peduncles almost equnllinc the leaves {^-V long) ; pod ovoid (2" long). — Very 

 common. 



2. G, sphseroC^rpa, Eli. Smooth, rather stout (.5- 10' high) ; leaves 

 lance-ovate or obiong to oval-obovate (1 - 2' long), toothed ; peduncles scarcely 

 longer than the calyx and the large (3") globular pod — N. J. and Md. to Ill- 

 south tp Fla. and Tex. 



