17.5 Merrill: Studies on Philippine Rubiaceae, IV 433 
lax, rather distinct on the upper surface, obscure beneath; pet- 
ioles 5 to 8 mm long; stipules 4 to 5 mm long, divided into 7 
linear laciniae, the upper 4 about 3 mm long, the lower ones 
somewhat shorter. Flowers in dense axillary fascicles about 1 
cm in diameter, their pedicels 1 to 1.5 mm long. Calyx about 
2 mm in diameter, the lobes 4, oblong, about 1 mm long. Corolla 
white, 3 mm long, glabrous, the lobes 4, oblong, reflexed, about 
1.2 mm long. Capsule elliptic-obovoid, glabrous, about 2 mm 
long. 
Panay, Capiz Province, Jamindan, Bur. Sci. 3094-0 Ramos & 
Edano, May 27, 1918, in thickets along streams. 
This species belongs in the group with Hedyotis philippensis 
(Willd.) Merr. and is closely allied to H. asperrima Merr. from 
which it is distinguished by its somewhat larger leaves, the 
midrib beneath and the petioles being rather densely white- 
villous, as well as by its different stipules. In Hedyotis as- 
perrima the midrib beneath and the petioles are more or less 
scabrid, not villous, while the laciniae of the stipules are reduced 
to short lateral projections 1 mm long or less. Another dif- 
ferential character is that of the midrib and nerves which are 
not at all impressed in Hedyotis asperrima but which are con- 
spicuously so in H. scaberrima. 
HEDYOTIS SIMPLEX sp. nov. 
Species H. rigidae affinis. Suffrutex erectus, simplex, 40 ad 
60 cm altus, caulibus vetustioribus teretibus glabris, junioribus 
sulcatis vel obscure angulatis, parcissime hirsutis; foliis charta- 
ceis, lanceolatis ad oblongo-lanceolatis, usque ad 14 cm longis, 
glabris, nitidis, utrinque acuminatis vel basi acutis, nervis utrin- 
que circiter 7, adscendentibus, distinctis ; stipulis ovatis ad 
oblongo-ovatis, circiter 12 mm longis, acuminatis, margine lev- 
iter laceratis; inflorescentiis axillaribus, dense multifloris, sub- 
globosis vel hemisphaericis, sub fructu 1 ad 1.5 cm diametro; 
fructibus globosis vel leviter obovoideis, circiter 2 mm diametro, 
parcissime hirsutis, calycis lobis oblongo-ovatis, obtusis, circiter 
1.5 mm longis, leviter hirsutis. 
An erect, unbranched undershrub, 40 to 60 cm high, the older 
stems terete, glabrous, up to 5 mm in diameter, the younger parts 
somewhat hirsute, sulcate or somewhat angled. Leaves char- 
taceous, lanceolate to oblong-lanceolate, somewhat olivaceous 
when dry, glabrous, shining, 9 to 14 cm long, 2 to 3.5 cm wide, 
subequally narrowed to the acute or acuminate base and to the 
rather slenderly acuminate apex; lateral nerves 7 on each side 
