β. hybridus. Low, decumbent, very hirsute.-Near Savannah (Feay). Stems 2 to 4' long, with short internodes. Fls. sometimes shortened.

3 D. noctiflorus Nees.- Cal. segm. linear-lanceolate, thrice shorter than the very long corolla tube. Otherwise as in D. ciliosus.-Ga. (near Savannah, Le Conte) and Fla. (Ruellia tubiflora Le Conte.)

5. CRYPHIACAN'THUS, Nees. (Gr. clandestine, ) Calyx deeply 5-parted, spreading in fruit; corolla bell-funnefelorm, limb equal; stamens 4, included; anthers sagittate; stigma simple; capsule oblong, terete, 12 to 16-seeded from the base; seeds roundish, cordate, compressed, silky, subtended with hooks.-Herbs villous, with corm-like base and fasciculate roots. Ped. 3-flowered.

C. Barbadense Nees. Caulescent; lvs. ovate, cuneate at base and petiolate, entire or undulate-dentate, smoothish or hairy; ped. somewhat cymous, longer than the petiole or even than the leaves; cal. segm. subulate-acuminate, glandular, hirsute ; cor. tube shorter than the limb.- A low, leafy plant, Va. to Fla., Tex. Mex. etc. (Nees). (Ruellia tuberosa and clandestina L.)

6. HYGROPH'ILA, R. Br. (Gr. waters, to love.) Calyx tubular, about half 5-cleft, with narrow, equal segments ; corolla bilabiate, ringent, lower lip convex and rugulous in the midst, trifid; stamens 4, didynamous, not exserted; anther cells divergent-sagittate, violet-colored; stigma simple, subulate; capsule 6-striate, co-seeded from the base; seeds small.-Herbs in swamps, etc, stoloniferous, 4-angled. Fls. clustered in the axils.

H. lacustris Nees. Erect, subsimple, minutely pubescent; lvs. lanceolate, narrowed to both ends, sessile, subentire; verticils many-flowered; cal. smoothish.-Borders of lakes near N. Orleans. (Hale). Stems 1 to 2f high above the water, very straight and simple. Fls. white. (Ruellia justiciaeflora Hook.) .

7. DICLIP'TERA, Juss. (Gr. double, to shut; referring to the 2-valved capsule.) Calyx 5-parted, equal, sessile, in a bracted head; corolla resupinate, bilabiate, upper lip 3-toothed ; stamens 2; anther cells straight, placed one above the other; capsule 4-seeded; dissepiment and walls separating from the back of the valves and curving upwards; seeds discoid, on hooks.-Herbs with the small flowers in axillary, involucrate, finally terminal heads. i

D. brachiata Spr. St. 6-angled, brachiate-branched, glabrous; lvs. ovate-oblong, subentire, obtusely acuminate, contracted at base to a long petiole; hds. fewflowered, sessile or the lower on a leafy peduncle, the upper at length spieate; involucrate lvs. very unequal; capsule oval the valves first curving backwards, then each splitting from the dorsal rib and curving upwards from the base.- Roanoke R., N. Car. (Pursh) to Ga. (Pond) and La. (Hale). Plant 2 to 3f high, lvs. 2 to 3' long, on stalks half as long. Fls. purple, 5 or 6" long.

8. RHYTIGLOS'SA, Nees. (Gr. a wrinkle, tongue; referring to the wrinkled palate.) Calyx 4 or 5-parted ; corolla bilabiate, upper lip narrow, lower 3-lobed, with a rugous, veiny palate; stamens 2 ; anther cells more or less distinct, subtransverse, placed one above the other; capsule compressed, 4-seeded from the middle upwards; seeds tubereulate, with hooks.-Herbs, loose-leaved, with axillary or spicate, bracted flowers.

1 R. pedunculosa Nees. Erect, angular, very smooth; lvs. long-lanceolate, scarely oblique or ensiform, obscurely crenate or wavy, subpetiolate; spikes axillary, subcapitate, on very long peduncles opposite or alternate; bracts and sepals lanceolate, subequal, half as long (3") as the ringent corolla; lower half of the capsule empty, valves recurved when ripe.-River banks, Niagara to Tex. and Ga. Plant 2 to 3f, lvs. 2 to 4' by 6 to 12". Corollas 6 ' long, violet-purple. Caps, same length. Jn. Jl. (Dianthera Americana L. Justicia pedunculosa Mx.)

2 R. ensiformis. Decumbent at base, then erect, very slender, 4-angled. smooth • lvs. linear, oblique or ensiform, very entire, thick, sessile; peduncles subterminal, very long; spikes at length loose-flowered; bracts half as long as the linear subulate sepals which are a third as long as the showy corollas.-E. Ga. to Apalachi-cola, Fla. St, 1 to 2f high, in bogs. Lvs. 3 to 6' by 2 to 3". Ped. twice as

' long. Cor. purple, 1' or more long, resembling those of Arethusa. Confounded with the preceding hitherto, but very different. (Justicia ensiformis Walt. ?)

3 R. humilis Nees. Glabrous, ascending, 4-angled; lvs. oblong or lanceolate, or the lower oval obtusish, subcrenate, attenuate at base to a short petiole; spikes simple, axillary, pedunculate; fls. loose, mostly secund; bractlets much shorter than the subulate calyx lobes, which equal the tube of the small corolla; caps, acuminate, the lower half empty and stalk-like.-S. Car. to Fla. and La. Plant 1 to 2f high, often much lower. Lvs. 2 or 3' long, the spikes at length exceeding them, 5 to 10-flowered. Cor. 5" long, light purple? (Justieia humilis Mx.)

9. CYRTAN'THERA, Nees. ( curved, ) Calyx 5-cleft or parted, equal; corolla ringent, upper lip falcate, lower in 3 narrow segments; stamens 2, recurved at apex, anthers short, nodding, capsule 4-seeded ?-Herbs from tropical America, with showy clusters of flowers.

'C. carnea. Stem stout, tall, half-shrubby; lvs. ample, ovate, subdeltoid or oval-oblong, long-cuneate at base, petiolate; bracts and braetlets lanceolate, acuminate, ciliate, larger than the calyx; fls. in a dense, thyrse-like, terminal head, light purple or flesh-colored, large, many in bloom at once.-In the greenhouse, † (Justicia carnea Hook. C. magnifica Noes.)