416 CIX. ACANTHACEE. (C. B. Clarke) —|Echinacanthus. 
elliptic crenate or toothed, cymes lax compound zigzag pubescent, 
corolla % in. 
KnuasrA Mrs., alt. 4200 ft. ; Cherra Coal-hill, Clarke. 
An undershrub, 6-15 in., very woody, much branched, densely covered on all sides 
with cymes. Leaves 1 by 4 in., narrowed at both ends (many 1-3 in. ovate), blackish; 
hairs scattered, very fine, often gland-tipped ; petiole in. Cymes as of E. Andersoni; 
bracts din., linear; pedicels often 4 in.; bracteoles 1-4 in., linear. Sepals 3 in., linear, 
finely glandular-pubescent. Corolla light-purple, nearly glabrous. Filaments 
glabrous except near the base, where they are shortly connate; anthers subequal, 
2-celled; cells oblong, muticous, connective not excurrent. Ovary glabrous; style 
very sparsely hairy, stigma long narrowly lanceolate ; ovules 3 in each cell. Capsule 
not seen.—This may prove to be E. parviflorus, T. Anders., but it is not likely that 
T. Anderson would have put that species in Echinacanthus without remark, had the 
anther-cells been muticous. 
XII. PETALIDIUM, ees. 
Minutely hairy undershrubs. Leaves ovate or narrowly oblong, entire or 
toothed. Flowers sessile or nearly so, solitary, usually crowded on abbre- 
viated lateral branches; bracts 0; bracteoles large, ovate, reticulate-nerved 
becoming scarious. Sepals subequal, linear-lanceolate. Corolla-tube straight, 
ventricose nearly from the base; lobes rounded, twisted to the left in 
bud, patent in flower. Stamens 4, didynamous; anthers subsimilar, 
2-celled ; cells parallel, spurred at the base, Ovary with 2 ovules in each 
cell; style long-linear, stigma unequally 2-lobed. Capsule clavate, com- 
pressed parallel to the septum, 2- or 4-seeded ; placenta dehiscing elastically 
from the bottom of the capsule, raising the discoid seeds with them.— 
Species 12, one Indian, the rest African. 
The above character is drawn chiefly from the Indian species; the number of 
African species received since the Gen. Pl., vol. ii., pl. 2, was published, may neces- 
sitate widening of the generic character. 
P. barlerioides, Nees in Wall. Pl. As. Rar. ii. 82, and in DC. 
Prodr. xi. 114, excl. syn. Eranthemum barlerioides, Roxh.; leaves ovate 
crenate, bracteoles $ in., corolla 1 in. Bot. Mag. t. 4053; Dalz. & Gibs. 
Bomb. Fl. 185; T. Anders. in Journ. Linn. Soc. ix. 461. Ruellia 
barlerioides, Roth Nov. Sp. 310; Wall. Cat. 2389. R. bracteata, Roxb. Fi. 
nd. iii. 47. 
N.W. HIMALAYA and N. Deccan PENINSULA, alt. 1-3000 ft. ; extending from 
Canara and the Concan to Rajmahl and Rajpootana, frequent; reappearing in the 
OUDE and Kumaon dry Terai, alt. 1500 ft. 
Stems several, 2-3 ft., terete. Leaves 2-4 in., acuminate, hoary or dusky puberu- 
lous; petiole 3—} in.; leaves on the shortened flower-bearing spurs 1-1 in. Bracteoles 
ovate or elliptic, acute. Sepals } in., linear, puberulous or pubescent. Corolla 
narrow-campanulate, pale-blue or white, yellow-tinged; palate with long deflexed 
fulvous hairs within. Filaments and anthers minutely sparsely hairy (all but 
glabrous). Ovary glandular upwards, style shortly hairy. Capsule À in. usually 
2-seeded. Seeds shaggy, hairs somewhat elastic when wetted ; retinacula (with the 
placente) stout, rigid.— Eranthemum barlerioides, Roxb., placed here by Nees 
(and T. Anderson), is either Eranthemum Parishii or very near it, and came from 
the Andamans, 
XII. PHAYLOPSIS, Willd. 
Prostrate, perennial herbs. Leaves opposite, petioled, ovate, entire or 
obscurely crenate. Spikes terminal, l-sided, dense; bracts orbicular, closely 
