XCII. ACANTHACE^. 285 



Corolla ringent, coriaceous, the upper lip compressed, vaulted, 

 with the margin incurved, especially at the apex, membranous 

 and emarginate ; lower lip 3-fid, the medial lobe larger. Sta- 

 mens 2, exserted ; the rudiments of the others adnate to the 

 corolla, appearing as callous, hairy lines rising from the bases 

 of the fertile filaments toward the galea ; anthers 2 -celled, 

 the cells parallel, pointless, one a little higher. Ovary ovate, 

 hairy, 4-ovuled; stigma obtuse. Capsule? — DC. Prod. xi. p. 

 322. 



A Natal shrub, with oblong, acute glabrous leaves, 7-9 inches long, 2\ 

 inches wide, and axillary, peduncled, bracteate spikes. Corolla purple, 

 Telvety, 1 in. long, 



14. JUSTICIA, Linn. 



Calyx 5-parted. Corolla-tube short, straight, upper lip 

 3-fid, concave, not hooded, lower 8 -fid, middle-lobe larger than 

 the lateral, convex, rugose. Stamens 2, fertile, exserted ; 

 anther-cells superposed, lower spurred. Ovary with 2 or more 

 ovules in each cell ; style entire, obtuse. Capsule laterally 

 compressed below, the seeds 2-valved. Seeds tubercled or mu- 

 cronate, with acute hooks. — Justicia, Kostellularia, Adhatoda, 

 Monechma, and Eaphidospora, Nees in DC. Prod. xi. p. 368, 

 384, 411, 426, and 499. 



Herbs or shrubs. Flowers axillary or terminal, solitary, panicled or 

 spicate, often handsome. — About 20 species, chiefly Eastern. 



15. ECTEINANTHUS, T. Anders. 



Calyx 5-parted ; segments subequal, ciliate. Corolla 2- 

 lipped, the upper lip 2-dentate, subfornicate, lower convex, 

 3-fid, cross-ridged. Stamens 2; anther-cells placed one above 

 the other, inserted subtransversely on the apex of the filament, 

 oval, pointless. Stigma acute, entire. Capsule ovate, sterile 

 at base, oblique, 4-seeded. Seeds ovate, compressed, rough- 

 skinned. — T. Anders, in Linn. Soc. Journ. vii. Bot. p. 45 ; Ehy- 

 tiglossa, ex parte, Nees in DC. Prod. xi. p. 335. 



Small undershrubs or herbs, differing from Justicia by the anthers and 

 capsule. Leaves sparse, ovate or oblong. Flowers spiked, axillary and 

 terminal. Bracts small. — 5 species, from Eastern district and Natal. 



16. DICLIPTERA, Juss. 



Calyx 5-parted, equal, sessile in bracteate capitula, the 

 outer bracts mostly 2, opposite, of larger size. Corolla resu- 

 pinate, 2-labiate, the lips flat or concave, the upper 3-toothed, 

 lower 2-deutate or entire. Stamens 2 ; anthers 2-celled, the 

 cells placed one above the other, pointless. Capsules 2-valved, 

 2-celled, short, 4-seeded ; the septum, in the ripe capsules, 



