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roots at the nodes. Stem erect or ascending, slender, simple, obtusely 

 tetragonous and silicate in the faces, hispidulous-pilose, with short or long 

 internodes. Leaves opposite, furnished with long and slender petioles, 

 ternately pinnate to bipinnate, thin, thinly pilose above, hispidulous-pilose 

 along nerves beneath, the rachis and petiole hispidulous-pilose with patent 

 hairs ; lateral leaflets subsessile or very shortly petiolulate, or sometimes ap- 

 parently petiolnlate, but all distinctly petiolulate and larger in the terminal 

 leaflet, ovate, oblong-ovate, elliptical, ovate-lanceolate, or lanceolate, but 

 often orbicular or ovate-orbicular in those of the inferior leaves, the apex 

 obtuse or shortly acuminate with an obtuse point, or sometimes more 

 or less prolonged in the superior, more or less obliquely acute, obtuse 

 rounded-obtuse, or rounded at the base, but obtuse to rounded or trun- 

 cate or sometimes subcordate at the base in the terminal leaflets, pauci- 

 lobate-crenato or crenate or serrato-crenate, green above, paler beneath. 

 Raceme terminal or axillary, slenderly stalked, simple, angustate, erect but 

 erect patent in the axillary ones ; rachis slender, straight, obtusely tetragon- 

 ous and sulcate in the faces, pubescent with glandular or eglandular 

 hairs ; verticillaster loosely disposed, sessile, 6-10-flowered, patent ; bract 

 small, lanceolate, the lowest one usually exceed the flower, the upper ones 

 much shorter than the flower and ciliated. Flower small, 8-12 mm. long 

 exclusive of the stamens and style, shortly pedicellate. Calyx oblong- 

 cylindrical and slightly enlarged above, 5J-7^ mm. long, hispidulous with 

 patent glangular or eglandular hairs externally and pilose partly internally, 

 11-nerved being the 5 upper and the 6 lower, unequally shortly bilabiate, 

 the back with 2 longitudinal ciliated narrow wings and a longitudinal 

 middle rib and usually tinged with purple colour ; the upper lip entire and 

 obtuse- or acutish-pointed, slightly " curved upwards, hardly shorter than the 

 lower lip which is aculeate-bidentate. Corolla deep-violet or pale-lilac, ex- 

 serted, bilabiate, pilose above externally, annulate with dense and short hairs 

 in the tube internally ; the tube cylindrical, slightly exserted, hardly curved 

 upwards ; the lip shorter than the tube ; the upper lip horizontal, slightly 

 concave within, oblong or elliptical, emarginate; the lower lip more or less 

 shorter than the upper lip, rounded, trilobed, the lateral lobes orbicular or 

 ova to-orbicular, the midlobe larger and longer, broadly and shortly cuneate, 

 truncate or emarginate-truncate at the apex. Stamens long exserted ; fila- 

 ment glabrous; the anterior anther-cell linear, coarctate, purple or dark- 

 purple ; the posterior abortive anther-cell minute ; connective filiform, 

 glabrous ; rudimentary stamens 2, minute, included, capitate at the top. 

 Stvle long, filiform, higher than stamens, glabrous ; stigma 2-fid with nn- 



