422 cix. ACANTHACE^;. (C. B. Clarke.) [Dcedalacanthus. 



capitate or oblong dense, bracts leaf-like glabrous often undulate- crenate, 

 corolla 1 in. blue. 



MALAY PENINSULA; Tenasserim, Heifer (Kew Distrib. D. 6176), Beddome; 

 Tavoy and Moulmein, Parish. 



Whole plant lineolate with raphides. Stems erect, elongate, tetragonous, leafy 

 upwards. Leaves 5 by 2| in., tip long acuminate, base shortly acuminate ; nerves 

 7-8 pair; petiole 0-1 ^ in. Flowers often appearing densely clustered at the nodes on 

 shortened axillary spurs ; bracts 1-lf in., leafy, imbricated usually densely sometimes 

 laxly; bracteoles \ in., linear-lanceolate. Calyx 3 in., divided half-way down; lobes 

 narrow-lanceolate, whitened, puberulou?. Corolla-limb f in. diam. Anthers included. 

 Capsule 1 in., glabrous. This much resembles D. suffruticosus, but the leaves are 

 conspicuously lineolate. T. Anderson has overlooked the true bracteoles ; they are 

 exactly similar in size, form and situation to those of other species. The bracts 

 (bracteoles of T. Anders.) are 1 to each flower ; when they are opposite on the spike 

 and the flower in the axil of one is aborted, they appear superficially 2 to each flower; 

 as is the case often in D. montanus and several other species and genera. 



XV. HE1VUGRAPHIS, Nees. 



Herbs or shrubs. Leaves opposite, toothed or subentire. Flowers 

 sessile, in heads or spikes, rarely solitary ; heads terminal or quasi- 

 axillary on shortened branchlets, rarely (in H. fiava) panicled ; bracts 

 imbricated, large, 1-fld. ; bracteoles small, narrow, or 0. Calyx 5-partite 

 nearly to the base ; segments 5, subequal, linear-lanceolate or lanceolate. 

 Corolla long-tubular, lower half cylindric, upper funnel-shaped or ventri- 

 cose ; lobes 5, rounded, subequal, sinistrosely contorted, blue or yellow. 

 Stamens 4, didynamous, included or uearly so ; anthers oblong, 2-celled, 

 muticous, sometimes triangular, bases acute. Style long, stigma of one 

 linear and one very short lobe ; ovules 3-8 in each cell. Capsule linear 

 or linear-oblong, 6-20-seeded nearly from the base. Seeds compressed, 

 discoid, brown when dry, apparently glabrous with a white margin, when 

 wetted densely hairy with white long unicellular hairs, each with numerous 

 annular thickenings. Species 20, Indian, Malayan, a few Chinese and 

 Japanese. 



Sect. 1. Corolla tubular- ventricose, limb blue. Longer filaments gla- 

 brous in their upper half or very nearly so. 



1. K. dura, T. Anders, in Journ. Linn. Soc. ix. 461 (excl. syn. "Ruellia 

 crispa) ; bristly, leaves spathulate-elliptic crenatje, bracteoles 0, calyx \ in. 

 subscarious. Euellia urens, Heyne in Herb. Rottler ; Roth Nov. Sp. 302; 

 Roxb. Ic. Ined. K. dura, Nees in DC. Pro.dr. xi. 146: Dalz. & Gibs. 

 Bomb. Fl. 186. 



DECCAN PENINSULA; Kurnool (in Madras), Beddome ; Bombay, Jacquemont ; 

 Central India, Edgeioorth Belgaum, Ritchie ; Nilgherries, Hohenacker, &c. 



Stems 1-2 ft., branched, diffuse, often almost prickly from white deflexed bristles. 

 Leaves If by in., obtuse, harshly scabrous ; petiole \ in. Ileads many-fld., with 

 white and often much brown hair ; bracts f in., oblong or spathulate. Calyx divided 

 nearly to the base ; segments linear, green with scarious margins, setulose. Corolla 

 | in., subequal, blueish-purple, ventricose portion about as long as the cylindric. 

 Longer filaments laxly hairy below. Capsule % in., 6-8-seeded. Nees erroneously 

 maintains (DC. Prodr. xi. 146) that R. urens of Heyne, Roth and Roxburgh is the 

 same as their R. latebrosa. 



2. K. hirta, T.Anders, in Journ. Linn. Soc.ix. 462 ; softly hirsute, leaves 

 small ovate crenate, bracteoles 0, calyx in. green. Ruellia hirta, Vahl 



