X, C, 5 
Merrill: Philippine Plants, XII 
347 
A small, nearly glabrous herb, the stems prostrate and rooting 
at the nodes, 4-angled, obscurely puberulent or glabrous, the 
flower-bearing branches erect, slightly branched, less than 10 
cm tall. Leaves in unequal pairs, the larger ones of each pair 
ovate to broadly ovate, 1.5 to 2 cm long, about 1.5 cm wide, the 
base broad, truncate or sometimes subcordate, rarely somewhat 
decurrent, the apex acute or blunt, margins slightly undulate, 
the smaller leaves of each pair similar but less than one-half as 
large, both surfaces with small, scattered cystoliths; petioles 3 
mm long or less. Spikes terminal and axillary, solitary, slender, 
1 to 5 cm long, less than 0.5 cm in diameter, somewhat inter- 
rupted, the bracts and bracteoles similar, broadly lanceolate, acu- 
minate, 1-nerved, about 3 mm long, 0.8 mm wide, very slightly 
hispid, not ciliate nor glandular. Calyx-segments all acuminate, 
obscurely hispid with short hairs, not ciliate, 3 to 4 mm long, 
one 1.2 mm wide, very obscurely 3-nerved, very obscurely retic- 
ulate above, two narrowly lanceolate, 0.7 mm long, 1-nerved, the 
fourth cleft to within 1.5 mm of the base, the lobes lanceolate, 
1-nerved. Corolla 4 mm long, pale pink, glabrous, the tube not 
constricted, the upper lip 1.5 mm long, 1.1 mm wide, rounded, 
the lower one 3-cleft, the lobes elliptic-ovate, obtuse, nearly 1 mm 
wide. Anthers 0.6 mm long, the cells parallel. 
Mindanao, District of Davao, Santa Cruz, Williams 2955, June 19, 1905. 
A species perhaps as closely allied to Lepidagathis tenuis C. B. Clarke 
as to any other Philippine species, but quite distinct from that form. Well 
characterized by its small size, small, unequal, broadly ovate, short-petioled 
leaves and its slender, nearly glabrous spikes. 
RUELLIA Linnaeus 
RUELLIA PANAYENSIS sp. nov. 
Species R. nudispicae C. B. Cl. affinis, differt brevissime petio- 
latis, inflorescentiis fasciculatis haud solitariis tenuioribus, 
interdum ramosis. 
An erect herb about 20 cm in height, simple or sparingly 
branched, the stems terete, 2.5 mm in diameter or less, ciliate- 
hirsute, the younger parts rather densely so. Leaves oblong- 
ovate, chartaceous, 4 to 9 cm long, 2 to 4 cm wide, somewhat 
olivaceous, shining, apex rounded, base acute or subacute, the 
upper surface glabrous, the lower more or less hirsute with 
short hairs especially on the midrib and nerves, margins entire 
or obscurely undulate ; lateral nerves about 8 on each side of the 
midrib, slender; petioles pubescent, 3 to 5 mm long. Inflores- 
cence mostly spikelike, apical, fascicled, 3 or 4 from each stem, 
8 to 12 cm long, slender, glabrous or very slightly pubescent, 
