ACAXTHACEAE. 403 



- l. Anthacanthus spinosus (Jacq.) Xees, in DC. Prodr. 11: 460. 1847. 



Justicia spinosa Jacq. Enum. 11. 1760. 



A shrub, erect or diffuse, 2 m. high or less, the long slender branches 

 pubescent or glabrous, the stiff subulate spines more or less recurved, 4-12 mm. 

 long. Leaves coriaceous, glabrous or nearly so, ovate to oblong, elliptic or 

 oblaneeolate, 3-20 mm. long, obtuse, acute or emarginate at the apex, narrowed 

 or obtuse at the base, the midvein rather prominent, the lateral venation ob- 

 scure, the petioles very short; flowers few or solitary at the axils; peduncles 

 6-10 mm. long; calyx 3-4 mm. long, its lobes lanceolate, acute; corolla purple 

 or violet, puberulent or glabrous, its tube about 8 mm. long, its oblong lobes 

 about as long as the tube; style filiform, about 10 mm. long; capsule about 

 2 cm. long; seeds wrinkled, 2-3 mm. in diameter. 



Scrub-lands and thickets, throughout the archipelago from Great Bahama and 

 Andros to Eleuthera, Watling's Island. Caicos Islands and Inagua : Jamaica ; Cuba 

 to Virgin Gorda, and Martinique. Recorded by Mrs. Northrop, by Coker. and by 

 Lindau as A. acicularis (Sw.) Nees, which is known to us only from Jamaica. Races 

 differ in pubescence, in size and shape of leaves, and in length of spines. Pkicklt Bcsh. 



5. ANDROGRAPHIS Wall. PI. Asiat. Ear. 3: 77, 116. 1832. 



Herbs, erect or diffuse, the small flowers in panicles or cymes, with small 

 bracts and bractlets. Calyx 5-parted. Corolla with a short tube, somewhat 

 expanded above and a 2-lipped limb. Stamens 2 ; filaments sometimes bearded 

 above; anthers 2-celled. Capsule linear to oblong, scarcely stipitate. Seeds 

 6-12, flattened. [Greek, bearded-stamens.] About 15 species, natives of the 

 East Indies. Type species: Andrographis paniculata (Burm.) Xees. 



1. Andrographis paniculata (Burm.) Xees; Wall. PI. Asiat. Ear. 3: 116. 1832. 



Justicia paniculata Burm. Fl. Ind. 9. 1768. 



Annual, erect, glabrous below, glandular above, 3-6 dm. high, simple or 

 branched, the stem 4-sided. Leaves lanceolate or oblong-lanceolate, mem- 

 branous, 4-10 cm. long, acuminate at the apex, narrowed at the base into 

 short petioles; racemes commonly numerous, slender, often branched, or pan- 

 iculate; flowers secund, distant, purple; pedicels slender, 4-8 mm. long; calyx 

 about 3 mm. long, its segments linear-lanceolate, acuminate; corolla 3-4 times 

 as long as the calyx ; capsule about 1.5 cm. long. 



Waste grounds on New Providence : Cuba ; Dominica to Barbadoes ; Jamaica ; 

 Panama; naturalized from the East Indies. Andrographis. 



6. JUSTICIA [Houst.] L. Sp. PI. 15. 1753. 



Herbs, or shrubs, with entire leaves, the flowers variously clustered. 

 Calyx deeply cleft, its segments narrow, nearly equal. Corolla-tube mostly 

 shorter than the 2-lipped limb, the upper lip 2-cleft. the lower 3-cleft. Stamens 



2, borne in the throat of the corolla; anthers 2-eelled; staminodes none; lower 

 anther-sac minutely appendaged. Style filiform; ovules 2 in each ovary- 

 cavity. Capsule oblong. [In honor of James Justice, a Scotch gardener.] 

 Over 100 species, of tropical distribution. Type species: Justicia Adhatoda L. 



1. Justicia carthaginensis Jacq. Enum. 11. 1760. 



Herbaceous, erect, branched, 0.5-1.5 m. hi<jh, the branches and leaves gla- 

 brous or very sparingly pubescent. Leaves ovate or elliptic-ovate, membranous, 

 5-12 cm. long, acuminate at the apex, narrowed or rounded at the base, some- 



