ACANTHACEAE 435 



in pairs, one often much reduced, the bracteoles as long as the calyx. 

 Calyx-limb 5-parted, the segments equal, linear-lanceolate. Corolla pink, 

 the tube slender, the limb deeply 2-lipped, the upper lip entire or emarginate, 

 the lower 3-lobed, recurved. Stamens 2; anthers 2-celled, the cells blunt, 

 superposed. Ovary 4-ovuled. Capsule clavate. (Greek, referring to the 

 2 bracts concealing calyx.) 



Species about 60 in the tropics of both hemispheres, 2 or 3 in the Phil- • 

 ippines. 



1. D. leonotls Dalz. 



An erect or spreading, branched, somewhat hairy herb about 0.5 m 

 high. Leaves ovate to elliptic-ovate, sharply acuminate, 3 to 8 cm long, 

 glabrous or with few hairs. Flowers in rather dense axillary whorls. 

 Bracts green, lanceolate, narrowed below, 10 to 12 mm long, clothed with 

 spreading white hairs, slenderly and sharply long-acuminate. Calyx about 

 B mm long. Corolla pink, about 1 cm long. 



Near San Pedro Macati, rare, fl. Jan., and probably in other months; of 

 very local occurrence in the Philippines. India. 



2. ELYTRARIA Vahl 



Low, simple or branched, erect herbs, the leaves all basal or somewhat 

 crowded near the ends of the stems or branches. Flowers small, white or 

 purplish , sessile, solitary in the axils of the bracts, arranged in cylindric, 

 slender spikes, the peduncles axillary, solitary, bearing from 1 to several 

 spikes at their apices, covered with appressed, small, green bracts. Calyx 

 4-parted, the lobes unequal, acuminate. Corolla-tube cylindric, slender, the 

 limb 2-lipped. Stamens 2, inserted near the throat, included, capsule 

 oblong-lineai?, contracted at the base. Seeds small, few. (Greek "covering," 

 in allusion to the scale-like bracts.) 



Species 3 or 4, or according to some authors 16, in tropical and sub- 

 temperate America, some introduced in other tropical countries, a single 

 one in the Philippines. 



1. E. TBIDENTATA Vahl. ^ 



An erect, simple or branched, glabrous or slightly pubescent herb, 15 

 to 40 cm high. 'Leaves oblanceolate. Usually somewhat crowded toward 

 the ends of the stems or branches, 6 to 11 cm long, acute or acuminate, 

 slightly toothed. Spikes 2 to 6 cm long, solitary or several at the ends of 

 the elongated peduncles, the peduncles slender, stiff, axillary, covered with 

 appressed, lanceolate, acuminate, bracts. Bracts subtending the flowers 

 acuminate, imbricate, 3-toothed, about 4 mm long, their margins lanate. 

 Corolla pink, slender, about 2.5 mm long. 



In dry open places, fl. Sept.-March; apparently of local occurence in 

 the Philippines, but thoroughly naturalized. A native of tropical America, 

 but reported from no other part of the Orient. 



3. JUSTICIA Linnaeus 



Herbs or shrubs with entire leaves and usually small flowers in rather 

 dense terminal or axillary spikes, the bracts large or small, bracteoles 

 linear or wanting. Calyx 4- or 5-parted, the lobes narrow. Corolla-tube 

 usually short, the limb spreading, 2-lipped, lower lip 3-Iobed or nearly 

 entire. Stamens 2; filaments hairy near the base. Ovary 4-ovuled; style 



