Gratiola. SCROPHULARIACE/E. 281 



HYDRAyxHELiuJi Egense, Poppp. of Brazil, with aspect of Herpestis, was picked up in 

 New Orleans by tlie late J. Hale, and is enumerated in Mann's Catalogue, also by Chapman 

 in Bot. Gazette, iii. 10 : but it is probably a Iballast waif and transient. 



§ 2. Corolla obscurely bilabiate; the limb being almost equally 5-lobed; tube 

 somewhat campaimlate : stameus hardly didynamous : anthers sagittate : stigma 

 capitate. — Brainia, Lam. § Bramia, Benth. 



H. Monniera, HBK. Glabrous perennial, prostrate and creeping, somewhat fleshy : 

 leaves spatulate to obovate-cuneate, entire or obsoletely somewhat toothed, sessile (4 to 8 

 lines long), nearly veinless : pedicels at length longer than the leaves, 2-bracteolate at 

 apex : upper sepal ovate : corolla (4 or 5 lines long) pale blue. — Hook. Bot. Mag. t. 2557. 

 H. cuneifolia, Pursh, Fl. ii. 418. //. Brownei, Nutt. Gen. ii. 42. Gratiola Monniera, L. 

 Afonnlera cuneifolia, Michx. 1. c. — lliver-banks and shores near the sea, Maryland to 

 Texas. (Cosmopolite near the trollies. ) 



17. GRATfOLA, L. Hedge Hyssop. (From the Latin gratia, grace 

 or favor, i. e. Herb-of-grace.) — Low herbs, of wide distribution ; with opposite 

 and sessile entire or dentate leaves, and solitary axillary pedicels, usually 2-brac- 

 teolate under the calyx : H. summer. 



§ 1. GratiolXria, Benth. Anther-cells transverse and separated by a mem- 

 branaceous dilated connective: cajjsule ovate or globular: soft-herbaceous and 

 diffusely branching, either annuals or fibrous-rooted perennials from a creeping 

 base, growing in wet soil. 



* Sterile stamens wanting or reduced to minute rudiments, 

 -i— Calyx ebracteolate : Pacific species. 

 G. ebracteata, Benth. A span high or less, erect, nearly glabrous, obscurely viscid : 

 leaves lanceolate, entire, or sometimes sparingly and acutely denticulate : pedicels slender, 

 in fruit strict : sepals foliaceous, 3 or 4 lines long, equalling the yellowish corolla, mostly 

 surpassing the globular and somewhat 4 angled capsule : seeds oblong. — DC. Prodr. x. 

 695; Gray, Bot. Calif, i. 570. — Oregon and N. California. 



-I— -K- A pair of foliaceous bractlets close to the calyx and equalling it : Atlantic species, one 

 extending westward to tlie Pacific. 



++ Pedicels filiform, equalling or exceeding the leaves: seeds oblong or oval. 



= Corolla golden yellow : capsule ovate-conical, acute, much exceeding the reflexed or spreading 

 calyx. 



G. pusilla, Torr. Minutely viscid, almost glabrous, slender, 2 or .3 inches high: leaves 

 oblong-linear, obtuse, entire {\^ to 4 lines long): corolla 4 lines long; lobes retuse or 

 emarginate : capsule 2 lines long: seeds comparatively large, obliquely obovate-oblong. — 

 Benth. in DC. Prodr. x. 402. — Arkansas and the adjacent parts of Texas, Leavenworth, 

 Wrlijlu, &.C. 



= = Corolla yellowish or whitish, commonly with a tinge of purple: capsule broadly or globose- 

 ovate, equalled by tiie calyx. 



G. gracilis, Benth. 1. c. Glabrous or nearly so, small and slender, erect : leaves from 

 oblong- to linear-lanceolate, entire or sparingly dentate: corolla 3 lines long: capsule 

 globular, but acutish. — E. Texas, Druminond, &c. Little known. 



G. Floridana, Nutt. Glabrous or nearly so, erect, a span or two high : leaves oblong- 

 lanceolate or broader, entire or repand, sometimes remotely dentate, narrow at base (an 

 inch long) : corolla 8 lines long, with yellowish tube 2 or 3 times the length of the calyx, 

 and the rather large white lobes all emarginate: capsule broadly ovate. — Jour. Acad. 

 Philad. vii.103; Benth. in DC. 1. c. (with var.? !n/pn«firf/a, a form verging to next species) ; 

 Chajnu. Fl. 2!)2. — Florida, Georgia, and Alabama. Tennessee, Gattlngp.r. 



G. Virginiana, L. Viscid-puberulent or more pubescent, or below nearly glabrous, 

 divergently branched from the base, a span or. less high: leaves commonly glabrous, 

 oblong-lanceolate, acute, from entire to denticulate-serrate, mostly narrow at base (the 

 larger an inch or two long) : corolla 4 or 5 lines long, with yellowisli tube barely twice the 



