Thimhetujia. didynamia angiospermia. 35 



four- winged. Leaves opposite, petioled, spreading, cordate, 

 often angle-lobed, pointed, from five to seven nerved, a little 

 scabrous from small stiff while hairs on both sides; floral 

 leaves of the racemes small, otherwise like the rest. Peti- 

 oles erect, nearly as long as the leaves-, swelled near the base, 

 channelled, scabrous. Stipules none. Perf/aic/es axillary, so- 

 litary, or paired ; or in brachiate pairs, i. e. two or three pairs 

 on terminal racemes, which if not supported, become beauti- 

 fully bowing, like elegant festoons. Peduncles of the axilla- 

 ry flowers, and pedicels of the raceme, round, somewhat cla- 

 vate, as long as the petioles, one-flowered. Floicers very 

 large, being about four inches broad when expanded, colour 

 a beautiful light blue. Bracles none. Calyx ; spathe two- 

 valved, obliquely-oblong, the under margins being more 

 rounded and open; the upper almost straight, and slightly 

 united, sometimes their whole length, though in general only 

 near the apex, striated, pointed, a little hairy, and mark- 

 ed with small black dots, they are about as long as the 

 tube and throat of the corol. Corol one-petalled, campanulate, 

 sitting- on a nectarial ring*. Tube short and conical ; throat 

 ample, with a long-, vaulted concavity on the upper side, 

 where the stamens and style are lodged; on the opposite 

 side is a large corresponding convexity, which is elegantly 

 streaked with deeper and lighter blue. Border five-parted; 

 divisions nearly round, Jhe superior two erect, the inferior ones 

 expanded. JSTectary a large lobate body, surrounding the 

 base of the germ, the corol inserted into it. Stamens within 

 the throat. Filaments four, inserted on the mouth of the 

 tube, interior pair much curved, and although longer than the 

 other pair, yet from the curvature, their anthers are not more 

 elevated than those of the other, or posterior pair ; oblong, 

 ovate, compressed, rugose. Anthers converginii-, equal, li- 

 near, erect, two-celled, margins of the cells bearded, as in 

 Acanthus; each of the cells of the interior anthers, armed with 

 a curved, sharp, rigid, white spur, exterior cell of the inner 

 anthers armed in the same manner. Genn conical, somewhat 



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