430 CIX. ACANTHAOGEE, (C. B. Clarke) — [Strobilanthes. 
Subgenus 3. EUSTROBILANTHES. Calyx subequally deeply 5-fid. Stamens 4. 
Series A. Bracteate. Bracts persistent. Flowers spiked or opposite, not 
mostly alternate. 
* Flowers capitate or shortly spicate. 
+ Seeds glabrous. Species 21-32, of Ceylon and Deccan. 
tt Seeds hairy. 
{ Species 33-46, of Ceylon and Deccan. . 
€'€| Species 47-56, of N. India and Malay Peninsula. 
** Flowers strobilate. 
T Seedsglabrous. Species 57-64, of Ceylon and Deccan. 
tf Seeds hairy. Species 65-78. . = 
*** Spikes elongate often much interrupted. Species 79-87. 
Series B. Nudate. Bracts caducous. Flowers capitate or opposite, pot 
mostly alternate. 
* Heads in fruit capitate. Species 88-100. . 
** Heads in fruitelongateor flowers distant. Species 101-119. 
Series C. Alterniflore. Flowers mostly distant alternate, or panicled. 
Species 120—136, of N. India and Malaya. .. 
Series D. Paniculate. Bracts persistent. Flowers panicled or interruptedly 
spicate. Capsule wide, very acute. Species 137-145, o 
Ceylon and S. Deccan. 
Residuary. Species 147-154, not seen. 
Subgenus 1. Buterwa. Calyz 2-lipped to the base; one lip 3-fid less 
than one-third the way down, the other 2-fid or 2-partite.—(Spikes strobili- 
form; bracts prominent, imbricate. Stamens 4. Seeds (where known) 
elastically hairy when wetted.—Species of Pegu and Tenasserim.) 
1. S. rufescens, T. Anders. in Journ. Linn. Soc.ix. 472 ; leaves ovate 
acute crenate more or less rufous-hairy, spikes dense strobilate hirsute, 
bracts broadly ovate, calyx 2-partite both segments very shortly toothed. 
Ruellia rufescens, Roth Nov. Sp. 304. R. comosa, Roxb. FI. Ind. wn. 43, 
and Ic. Ined. in Herb. Kew. R. ulmifolia, Wall. Cat. 2360. | Butersea 
ulmifolia, Nees in Wall. Pl. As. Rar. iii. 84, and in DC. Prodr. xi. 196. 
Peau ; Brandis.—Distr1B. Moluccas (Roxburgh). 1: 
A shrub; branches perfectly glabrous, or intensely shaggy with red hairs 1—5 !T- 
long. Leaves 13-4 in., often unequal, base obtuse or rounded, hirsute on both surtaces 
in the type examples, nerves 6 pair; petiole 1-13 in. Spikes 1-2 m., short- 
peduncled ; bracts 4 in., fulvous-hirsute ; bracteoles scarcely } in., sublinear. Calyx 
š in. 2-partite to the base, rufous-ciliate towards the apex; segments very shortly 
toothed, one 2-toothed, the other 3-toothed with the middle tooth broader subemargt- 
nate. Corolla 1 in., pale-purple, cylindric base of the tube rather shorter than the 
moderately ventricose part. Capsule lin., densely pubescent, 4-seeded. Seeds less 
than 5 in., orbicular, fine elastically white-hairy, areoles 0. . 
Var. rubiginosa ; leaves larger thinner glabrate lineolate above, bracteoles To Hl 
ovate,— Tenasserim ; Helfer (Kew Distrib. n. 6118). Chittagong; Clarke.—Stems 
thinly shortly rufous-hirsute ; leaves 53 by 23 in., base shortly acuminate, crenate, 
green, herbaceous; nerves beneath thinly rufous-hairy.— Helfer's example is unlike 
those of Ruellia ulmifolia, but very like the figure of R. comosa, Roxb. Clarke's 
examples have the stems sparsely or densely rufous-hirsnte, the leaves glabrate lineolate 
above or rufous-hirsute; the corolla is 1} in., pale-purple, nearly , glabrous with 
glabrous filaments, altogether as in Roxburgh's picture. 
2. S. acuminatus, T. Anders. in Journ. Linn. Soc. ix. 473, partly; 
leaves lanceolate acuminate at both ends crenate nearly glabrous, spikes 
oblong short-peduncled glandular, bracts ovate shorter than the calyx, 
calyx sub-2-partite one lip shortly trifid the other bifid nearly to the base. 
S. subflaccidus, Kurz in Journ. As. Soc. 1873, pt. ii. 94, ez deser. Adena- 
