20 
++ Leaves ovate or lanceolate. 
== Foliage in 1 or 2 whorles near the base. 
8. O. nudicaulis Roth. 
== = Foliage scattered along the stems. 
7 Plants about 1 m. high; leaves 8 em. long, 3 cm. wide, 
with prominent parallel veins. 
9. O. auricularia (Linn.) F. Muell. 
$4 7 Plants less than 1 m. high; leaves also smaller, not cons- 
picuously nerved. 
am Inflorescence in small subsessile umbels. 
10 O. lineata (Roxb.) Elm. 
«xn um Inflorescence cymosely paniculate. 
«| Leaves ciliate at least along the edges, with evident nerves. 
12. O. ciliata n. sp. Annual, 1 to 2 dm. high, usually 
erect and branched. Leaves opposite, all cauline, the larger 
one 1 em. wide, 3 cm. long, ovate or lanceolate, acuminate, 
base abruptly norrowed, subsessile, its 5 to 7 parallel veins 
from near the base, subglabrous on both sides, paler beneath, 
short ciliate around the entire margin; stipule connate, 
membranous, fringed with 1 mm. long laciniate teeth.  Inflo- 
rescence paniculately cymose, terminal or subterminal; term- 
inal flowers sessile, lateral ones slenderly pedicelled, subtended 
by a tuft of short glistening bristles; calyx segments 4, green, 
short hipid on the margins, 2 mm. long; corolla 2 mm. 
long, divided into 4 segments; stamens alternating with the 
petals and inserted upon the sinus; anthers introse, nearly 
sessile; style 2-cleft; ovary obovoid, terete, smooth, 2-celled; 
seeds numerous, upon a stalked capitate receptacle in each 
cell, concavely flattened, the dorsal side reticulate, the ventral 
side bearing an elongated attachment scar in the center 
and which is conspicuously radially nerved. 
Type specimen 6615 A. D. E. Elmer, Baguio, Province 
of Benguet, Luzon, June, 1904. In loose soil amongst bowlders 
of the limestone formation. 
«| «| Leaves glabrous, obscurely nerved. 
12. O. paniculata Linn. 
++ ++ Leaves linear or filiform. 
— Root annual. 
