42 DIDYNAMIA ANGIOSPERMIA, Ruellia, 
2. R. Zeylanica, Kon. Mss. B. H. 
Shrubby, scandent. Leaves cordate. Racemes terminal, 
becoming lateral,round. Capsules clavate; seeds one or two 
in each cell, with a thick double, dentate margin. 
Valli upu dali, Rheed, Mal. ix. t, 45. 
A native of Coromandel, and in flower and fruit great part 
of the year. Stem not easily distinguished from the innumer- 
able branches, which spread or climb in every direction to a 
very considerable extent, and by age become ligneous; the 
parts that rest on the ground strike root at the joints ; young 
shoots pretty smooth and somewhat four-sided. Leaves op- 
posite, petioled, cordate, entire, rather obtuse, pretty smooth, 
texture soft, from one to three inches long, Petioles toward 
the apex winged ; length one-third that, al the leaves. _ Ra- 
cemes terminal, but becoming lateral by the time t hes 
ripe, as the branches lengthen on one side thereof, ony 
twelve inches long, slightly incurvate, round. Rachis four- 
sided. Flowers short-pedicelled, solitary, rather remote, 
large, white or pale blue purple; for there are two varieties. 
constituted by the colour of the flowers only. Bractes tern, 
at the base of each pedicel, and one opposite to these on the 
opposite side of the rachis, small, triangular, permanent. 
Calyx to the base tive-cleft. Segments ensiform, acute ; corol 
with short tube, compressed, “campanulate throat, and sub- 
equal border, of five nearly equal, sub-rotund segments. F%- 
laments, the pairs united below the middle. Germ sitting 
in a fleshy nectarial cup, oblong, two-celled, with two seeds 
in each. Stigma rather large, slightly two-lobed, umbilicat- 
ed. Capsules clavate, villous, a full inch long. Seeds one 
or two in each cell, rugose, with thick, double, dentate mar- 
gins, The rest as in other Acanthoidee. 
3. R. racemosa, Roxb. 
Herbaceous, erect, the tender parts eillian: Leaves state 
ed, broad-lanceolate, rather blunt, entire. Racemes termi- 
nal, Corol cylindric, campanulate; divisions of the border 
