482 cix. ACANTHACEJE. (C. B. Clarke.) [Acanthus. 



7. A. long-ibracteatus, Kurz in Flora 1870, 363, and in Journ. As. 

 Soc. 1870, ii. 79 ; leaves long-petioled ovate or elliptic-oblong acute at both 

 ends remotely toothed pubescent, spikes terminal linear-oblong, bracts lan- 

 ceolate spinous-mucronate, corolla in. 



PEGU ; Brandis (fide Kurz). 



Annual, 3-5 in. ; stems terete, decumbent or ascending, densely puberulous. 

 Leaves 2 in., membranous, setulose between the teeth, sparsely hairy above, nerves 

 beneath pubescent. Spikes as in A. leucostachyus ; rachis pilose; bracts ^ in., 

 pubescent, lower entire, upper with 2 or 3 spinous teeth on each side; bracteoles as 

 long as the bracts, linear. Calyx \ in., adpressedly pubescent and nervose ; lower 

 segment deeply 2-fid, lobes lanceolate acuminate. Corolla 5-lobed, minutely hirsute 

 in the throat. Copied from Kurz. Notwithstanding the narrow bracts and small 

 corolla, I suspect that this is Kurz's subsequently described A. longipetiolatus. 



XXII. BARX.ERXA, Linn. 



Undershrubs or herbs, spinescent or unarmed. Leaves opposite, entire. 

 Flowers showy, purple blue yellow or white, sessile, solitary or in dense or 

 sublax spikes ; bracts and bracteoles large, small or 0. Sepals 4, in oppo- 

 site pairs, outer pair very much the larger, anterior often emarginate bifid 

 or deeply 2-lobed. Corolla-tube elongate, sometimes very long, funnel- 

 shaped upwards ; lobes 5, subequal, ovate, or elliptic, imbricate in bud. 

 Stamens 2 with oblong 2-celled anthers ; 2 small, rudimentary, or rarely 

 with a few grains of pollen ; rudimentary 5th often present. Disc large, 

 often a toothed cup half enclosing the ovary. Ovary 4-ovulate ; style long, 

 shortly bifid or subentire. Capsule ovoid or- oblong, 2- or 4-seeded below 

 the middle. Seeds compressed, ovate, hairs wavy silky close-adpressed non- 

 elastic (except in B. Gibsoni}. Species 60, tropical, mostly Old World. 



Barleria lupulina, Lindl. in Bot. Reg. 1483, is frequently cultivated in India, 

 and appears as ail escape. 



Barleria rubra, Hum., and JB. spicata, Roxb., are entered in Steudel's Nomencla- 

 ture as Indian : but it is not known from what source obtained. 



Subgenus 1. Prionitis. Capsule ovoid, beak solid, 2-seeded close to 

 the base. 



1. B. Prionitis, Linn. ; Nees in Wall. PL As. Ear. iii. 93, and in 

 DC. Prodr. xi. 237 ; leaves elliptic acuminate at both ends spine-tipped 

 glabrous or sometimes tawny sericeous beneath, flowers in terminal spikes 

 yellow, bracts large elliptic spine-tipped, bracteoles very small bristles or 0. 

 Burm. Fl. Ind. 135; Blume Bijd. 805; Wall. Cat. 2510; Soxb. Fl. Ind. 

 iii. 36 ; Decne. in Nouv. Ann. Mus. iii. 388 ; Wight Ic. t. 452 ; Dalz. # Gibs. 

 Bomb. Fl. 189; T. Anders, in Journ. Linn. Soc. ix. 490. 'B. Hystrix, 

 Linn. Mant. 89; Wall. Cat. 7145; Nees in Wall. PL As. Rar. iii. 93, and 

 in DC. I. c. 239. B. pubiflora, Benth. in Flora 1849, 558. Prionitis Hys- 

 trix & pubiflora, Miq. Fl. Ind. Bat. ii. 809, 810. Rumpli. Herb. Amb. 

 vii. 13. Rheede Sort. Mai. ix. t. 41. 



Tropical India ; from the HIMALAYA to CEYLON and MALACCA, probably in most 

 cases introduced. DISTEIB. Tropical Asia and Africa. 



A bush, 2-5 ft., sometimes planted for a fence ; usually very prickly, rarely nearly 

 unarmed; densely scabrid liueolate, sometimes puberulous. Leaves 4 by 1 in., 

 entire ; petioles of the lower leaves usually distinct sometimes |-1 in. Flowers 

 axillary, 1-3-nate, uppermost spiked; bracts ^-1 in., entire, the lower larger, fplia- 

 ceous. Sepals broadly lanceolate, acuminate, 2 outer -f in., 2 inner | in. Corolla 

 l|-lf in., glabrous or puberulous. Stamens 4, 2 minute or sterile. Disc annular. 



