3^3 



of the parietal placenta: style terminal, filiform, 'simple : stigma 

 entire or S-lobed: capsule 2-celled, of various conpistence, 

 onguiculate or rostrate, bursting elasti^sally : dissepiment op- 

 posite the valves, separating in two pieces through 'the axis! 

 (the middle spmetitnes'open), usually adnata to.thp valves, hut 

 sometimes separating from them: seeds usually compress^!, 

 1-2 or several in each cell, attached to cup-shaped, subulate 

 or hooked processes (retinacula) of the. placenta : testa coria-* 

 ceous, fibrous or loose, often tuberculate, sometimes pilose ; 

 albumen none: embryo curved or straight: cotyledons large, 

 roundish : radicle taper, descending, and at the same time cen-< 

 tripetal, curved or straight. — Herbaceous plants or shrubs: 

 stem and branches , nodosely jointed ; leaves often beset with 

 white hair-like lines under the epidermis which, after breaking 

 the cutula, effervesce on the application of an acid : leaves op- 

 posite or raii-ely in fours, exstipulate, entire or serrated, rarely 

 showing a • tendency to become lobed, sometimes in unequal 

 pairs : inflorescence terminal or axillary, in spikes, racemes, 

 fascicles, or panicles: flowers usually opposite on the spikes 

 or sometimes alternate, furnished with three bracts of which 

 the lateral peiir ^ire now and then defjqi^nt : bracts pften large 

 and foliaceous, and then the. calyx is usually much dimiiiishe4 

 ^n size. 



GENUS I. THUNBERGIA. 



Sldynaniia AnK(oaperuiia. Sex,: Syst: 



Beriv. In honor of C3iarles P. Thnnberg, F. R. S., a celeVat- 

 •ed Traveller and Botanist. 



Gen. Chae. Calyx short, cup-shaped, truncated or many. 

 toothed, teeth as many as ten when present : bracteoles two at 

 the base of the calyx, larger than the calyx and covering, the 

 flower valvately befoi-e its expansion : corolla campaiiulately 

 funnel-shaped, throat inflated, limb 5-oleft, spreading, nearly 

 equal : stamens four, didynamous : anthers erect, adnata, cells 

 parallel, ciljately baar,ded at the margin, Q,ije a little aliorter,^ 

 the base and the same produced into an awn-shaped spur : stigmc\ 



