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.Acanthaceae Acanthads Continued 1179 clandestine, Acanthaceae Acanthads Continued 1180 ) 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.-Acanthaceae Acanthads Continued 1181 A low, leafy plant, Va. to Fla., Tex. Mex. etc. (Nees). (Ruellia tuberosa and clandestina L.)

6. HYGROPH'ILA, R. Br. (Gr.Acanthaceae Acanthads Continued 1182 waters, Acanthaceae Acanthads Continued 1183 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.Acanthaceae Acanthads Continued 1184 double, Acanthaceae Acanthads Continued 1185 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.Acanthaceae Acanthads Continued 1186 a wrinkle, Acanthaceae Acanthads Continued 1187 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. (Acanthaceae Acanthads Continued 1188 curved, Acanthaceae Acanthads Continued 1189 ) 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.)