Jdlv 3, 1913] Palawan Acanthaceae 1699 



pressed puberulent when young; the soft odorless woody 

 tissue green except the white pith. Leaves horizontal or de- 

 scending, well scattered along the branchlets, opposite, re- 

 curved toward the obtuse or acute point, similarly pointed 

 at the base, broader and more abruptly elliptic or ovately so, 

 the average blades 7.5 cm. long and 4 cm. wide at the 

 middle or just below it but frequently smaller, margins 

 slightly involute in the dry state and entire or obscurely 

 crenate toward the apical point, drying blackish brown, gla- 

 brous; midvein quite prominent beneath and rigid above, 

 appearing as if appressed strigose; the 4 to 6 lateral nerves 

 ascendingly curved especially toward their ends, less prom- 

 inent beneath and evident from above, the fine reticulations 

 beautifully marked with cystoliths; petiole averagir.g 5 mm. 

 long, appressed puberulous. Inflorescence erect, chiefly in the 

 'uppermost leaf axils; flowers several, upon short rigid per- 

 sistent pedicels which are more or less provided by minute 

 bracts; calyx segments pale green, 3 to 4 mm. long, erect, 

 5, united at the base, lanceolate, ciliate along the midvein 

 on the back and toward the sharply acuminate apex, 0.75 

 mm. wide below the middle; corolla albus but with age 

 turning stramineus, 6 to 7 mm. long, tubular below the 

 middle, inflated and deeply bilobed above it, streaked with 

 purple in the throat, puberulent along the veins, one of the 

 lips rather broad and 3-lobulate and red or pink, the other 

 narrowed toward the truncate yellowish tippe<l apex; stamens 

 2, fertile; filaments inserted upon the middle of the corolla, gla- 

 brous, 2.5 mm. long; anther cells 1 ram. long, greenish, the low- 

 er cell caudate at base, the upper ones obtuse, oblique at apex, 

 well exerted by the recurved filament through the sinus of the 

 two lips; ovary glabrous, upon a thickened pedicel, 2 mm. long, 

 bearing a slender and sparsely ciliate 4 mm. long style with a 

 slightly enlarged stigma. Capsule 6 mm. long or longer, 1.5 mm. 

 thick at the middle, bluntly tapering at both ends, smooth and 

 glabrous, angular, loculicidaliy dehiscent, 2-celled, 4-seeded; seeds 

 lenticular, brown, puberulent, in the axils of the sharply pointed 

 raphides. 



Type specimen number 12785, A. D. E. Elmer, Puerto 

 Princesa (Mt. Pulgar), Palawan, March, 1911. 



Collected in dry ground of a wooded fiat at 250 feet altitude. 



