399 LEAFLETS OF PHILIPPINE BoTANY [Vor. I. Arr. 16 
brous, gradually tapering toward the base, 2-lipped; the 
lower one broadly 3-lobed, the upper subentire or emargi- 
nate and nearly as long; stamens 4, inserted a trfle below 
the throat of the corolla tube; filaments glabrous, subequal 
in length; anthers widely spreading, about 0.5 mm. across; 
style exceeding the stamens, glabrous, clavate, or divided 
into a few subequal lobes, circinate in the young state; 
seeds 4, lenticular, about 0.75 mm. across from the side, 
smooth, hard. 
Type specimen 8408, 4. D E. Elmer. Baguio, Province 
of Benguet, Luzon, March, 1907. Quite common in damp 
soil along the trail up to Mount Santo Tomas at 2,000 
meters, The genus has not been reported previously from 
the Philippines. 
Gomphostemma  luzonense n. sp.— Branched herbs, 1 m. 
high; stems pulverulent or the younger portion short pubes- 
cent, quadrangular. Leaves opposite, more crowded toward 
the ends of the stems and branches, the average blade 2 
dm. long, 7 em. wide, the shallow crenate teeth with cu- 
ticular tips, membranous, paler green beneath, glabrous above, 
short pubescent beneath on the nerves and reticulations, apex 
acute, base obtuse, the 5 to 7 lateral nerves of each side 
much ascending, cross bars quite prominent benesth; petiole 
5cm. long, short yellowish pubescent. Inflorescence in the 
leaf axils or in the axils of their scars further down the 
stems, in 1 to 3 whorls; bracts short pubescent, very 
. unequal in size and shape; calyx 8 mm. long, similarly pu- 
bescent on the exterior, the apical portion spreading into 
5 broadly ovate teeth; its nerves carinate toward the apex 
and extended into acuminate recurved tips; corolla white, ` 
2-lipped, the portion exceeding the calyx pubescent on the 
outer sides; the lower lip nearly straight, 6 mm. long, ob- 
long, 3 to 5-nerved, the apex shallowly toothed or emarginate; 
the upper lip strongly reflexed, equal in length but broader 
than 6 mm. at the base, 3-lobed; the lateral lobes shorter, 
rounded, truncate or irregularly jagged; filaments straight, 
loosely united, slightly woolly, unequal, each of the four 
bearing a fertile anther; anther cells elliptic, nearly 1 mm. 
in diameter, downwardly tipped; style glabrous, equalling the: 
