455 



GENUS XXXVIII. DILIVARtA. 



nidynamia Anslospermia. Sex: Si^i 



Gen. Char. Calyx 4.parted, upper and lower seg-ments larger,, 

 entire, callous at the base : corolla 1-lipped, lip 3-Iobed, palate! 

 convex thickened, upper margin quite entire : stamens four, didy- 

 namous : all the anthers l-celled, barbato-ciliated at the margin, 

 adnate : filaments agreeing with each other. Straight : capsule 

 2.celled, compressed, 4.8eeded from the base to the middle, sides 

 chartaceous, dissepiment, woody, l-fiirrawed, separating from the 

 valves, dilated a* the top, obliqneljr truncated : seeds cordate- 

 ovate, compressed, tubercled : retinacula thick, obtuse, straightish. 

 — Shrubs growing oil banks of Streams, erect : leavieS usually 

 thorny and toothed : a,pikes leafless : flowers furnished with 

 bracts and occasionally with bracteoles, showy- 



(1) D. iticiFOLiA. (Juss.) 



Jdent. Juss. Gen. p. 103. — Dec. prod. XI. p. 268. 



Syn. Acanthus ilicifolius, Roxh. fior: Ind. III. jp. 32. 



£nffrav. Rheede Mai. II. t. 48. — Wight's Icon. t. 459. 



Spec. Char. Shrubby, spinous or unarmed, glabrous : leaves 

 elliptic, serrately dentate, spinous : spikes many-flowered : flowers 

 bracteate and bracteolate, large, blue. 



Sea shores and backwaters, flowering nearly all the year. ' 



GENUS XXXIX. ACANTHUS. 



JDldynamla Angioapermia. Sex: Sytti 



Deriv. Vram /fkantha, a apine : some of the species being 

 spiny. 



Gen. Char. Calyx 4-parted, upper and lower Segments" much 

 larger, the latter 2-cleft at the apex : corolla 1-lipped, lip 3-clefH 

 or ?-lo.bed and sometimes auricled at the base, upper margin 

 quite entire, in a few 5-lobed : stamens four, sub-didynamoiis-:- 

 Ipwer filaments inflexed at the top : all the anthers l-celled, cili- 

 ated, upper ones erect,, lower ones transverse in the hook of <^ 

 filament : capsule, 2-celled, compressed, 4-seeded from the base to 

 the middle, aides chartaceous. — Herbs or shrubs ; leaves usually 

 pinnatifid, spinous : spike terminal, bracteate,' leafless : flower^ 

 bltrish or white, large, 3-braoteate, common bract bristly-ciliato. 



