414 CIX. ACANTHACEEX. (C. B. Clarke.) [ Ruellia. 
oblong, white-hirsute. Sepals } in., linear-lanceolate, glabrous, densely lineolate. 
Corolla pubescent ; tube long-linear, ventricose for 4 its length. Stamens 4, subequal ; 
anther-cells similar, parallel, minutely white-tailed. Style elongate, branches jy in., 
subequal. Capsule many-seeded.—This recedes from the genus in the subequally bifid 
style; but the corolla-lobes are twisted in bud, and it must be a Ruellia or very 
near it. 
DOUBTFUL SPECIES. 
R. ? INVOLUCRATA, Vahl Symb. iii. 83; leaves short-petioled lanceolate attenuate 
at both ends entire glabrous, spikes small ovoid hirsute, bracts ovate attenuate quadri- 
farious. Nees in DC. Prodr. xi, 150. 
INDIA (Madras ?); Koenig. 
General aspect of Justicia Gendarussa. Leaves 6-8 by l-4 in., shining, con- 
spicuously lineolate above. Spikes as large as a hazel-nut; bracteoles linear, hairy, 
shorter than the bracts. Calyx as long as the bracts. Corolla hairy in the throat. 
Anthers subsagitatte at base. Style simple lanceolate branch. Ovary “ pluri-ovulate. 
—Described by Nees from Koenig’s specimen. The number of the ovules uncertain, 
and it is impossible to guess the genus, 
R. ? GLANDULOSA, Roth Nov. Sp. 312; shortly villous, leaves petioled ovate- 
lanceolate subserrate, racemes axillary short subsecund, bracts minute linear-subulate 
glandular-villous. Nees in DC. Prodr. xi. 153. Ruellia glabra, Heyne. 
Inp1a (Madras ?); Heyne. 
Stem 4-angled, geniculate. Leaves lin. or a little longer; petiole 3 in. Racemes 
nearly horizontal; peduncle solitary, shorter than the petiole, 5- or 6-fld. ; bracts at 
the apex of the pedicels 2. Sepals 4 in., equal, linear-subulate, glandular-villous. 
Corolla scarcely longer than the calyx, unequal, pubescent.— The combination of 
minute bracts with a corolla hardly longer than the calyx has defeated all attempts 
to ascertain the genus of this plant. 
XI. ECHINACANTEUS, Nees. 
Erect herbs or undershrubs. Leaves opposite, ovate or oblong, acute; 
toothed. Cymes lax, short, few-fld., or long compound, axillary, upper form- 
ing a terminal panicle; pedicels short or 0; bracts small, linear; bracteoles 
small or 0. Sepals 5, long, linear, subequal. Corolla tubular-ventricose, 
nearly straight, widened about the middle; lobes 5, subequal, rounded, 
twisted to the left in bud. Stamens 4, didynamous, included; anthers sub- 
similar, 2-celled; cells oblong, parallel, base spurred or not. Ovary with 6-8 
ovules in each cell; style linear, stigma simple linear. Capsule oblong- 
linear, 8-16-seeded nearly from the base; retinaculastout, hooked. Seeds 
compressed, discoid, densely hairy, the hairs starting out on applying 
water.—Species 5, all Indian. 
The character of the genus has been here widened to include plants closely 
resembling Echinacanthus except that the anther-cells are muticous. 
* Anther-cells spurred at the base. 
1. E. attenuatus, Nees in Wall. Pl. As. Rar. iii. 90, and in DC. 
Prodr. xi. 168; leaves oblong or ovate subdentate, sepals linear viscous- 
pubescent, corolla 1} in. puberulous. T. Anders. im Journ. Linn. Soc. ix. 
459. Ruellia attenuata, Wall. Cat.2345; Nees in Wall. Pl. As. Rar. iii. 83 
(not Strobilanthes attenuatus, Nees in DC. Prodr. xi. 193). 
CENTRAL and EASTERN HIMALAYA; Nepal, Wallich; Tambur River, alt. 
2-4000 ft., J. D. H. Sikkim, alt. 4000 ft., Treutler, &c. 
Stems 1-2 ft., pubescent upwards. Lower leaves 3} by 2 in., broadly elliptic; 
