289 LEAFLETS OF PHILIPPINE BOTANY [Vor. I. Art. 16 
which soon falls off; flowers sessile, fleshy, all erect and 
parallel, each small cluster of 9 flowers subtended by glabrous 
broadly rounded involucral bracts; ovaries leaving conspicuous 
circular scars after falling, green when collected, at most 
puberulent, the young fruits elongated ellipsoid, obscurely 
angled and ridged; calyx persistent, rim like, very minute; 
corolla orange red at the base, dull yellow in the middle, 
with purplish or nearly black tips; the thick ligulate segments 
4 in number, 15 mm, long ultimately, the basal 2 mm. 
united, the apical 3 mm. becoming reflexed, glabrous or very 
short puberulous toward the apex on the exterior, very 
gradually tapering from base to the blunt apex; stamens 
opposite the lobes, 4; filaments short, attached a trifle below 
the throat, thick and triangular; anthers versatile, linear, 3 
mm. in length, acute at both ends; style terete, 0.75 mm. 
thick, fleshy, glabrous, barely exceeding the stamens, termina- 
ted by a capitate stigma. 
Type specimen 9115, A. D. E. Elmer, Lucban, Province 
of Tayabas, Luzon, May, 1907. Rare in woods at 750 meters 
on Mount Banahao. Closely related to L. halconensis Merr., 
but the inflorescence of our specimen is  involucrate, the 
individual flowers sessile and only 4-merous. 
POLYGONACEAE. 
Polygonum mearnsii n. sp.—Annual or biennial herbs, 
finely and numerously branched, stems very slender, glabrous; 
nodes surrounded by thin brown setose bracts, which are 3 
to 5 mm. long including the straight hairs. Leaves mostly 
toward the ends of the branchlets, linear lanceolate, 2 to 
4 cm. long, 3 to 5 mm. wide, apex slenderly acuminate, 
usually subfaleate, base acute or acuminate, very thin, flat, 
lighter green beneath, margins and both sides sparsely covered 
with yellowish setose adpressed hairs; true petiole none or 
very short; stipules longer and with longer setae than those 
remaining on the nodes of the stem. Inflorescence terminal, 
suberect, unbranched, 3 to 5 cm. long including the very 
slender peduncle; bracts surrounding each individual flower 
4 mm. long, thin, the nerves extended into 1.5 mm. long setae; 
. pedicels shorter than the bracts, 1 to 2-flowered, 3 mm. long, 
surrounded by an equally long, very thin involucre; perianth 
