596 



CLXIV. GESNERACE^E. 



Lifferta. Flower. 



/'tiilarnphia, 

 Transverse set tion of 

 ovary (mag.)' 



Pentaraphia. 

 Ovary cut vertically (mag.). 



I'tntaraphia. 



Seed cut \ertically 



(mag.). 



Achimenes lonyiflora. 

 Flower. 



COROLLA perigynous or hypogynous, monopetalous, 

 anisostemonous, irregular, 5-lobed, (estivation imbricate. 

 STAMENS usually 4, didynamous, inserted on the corolla. 

 OVAEY inferior or semi-inferior or free, 1-celled, pla- 

 centation parietal ; OVULES anatropous. EMBRYO albuminous or not. 



Usually herbaceous, rarely sub-woody or woody. LEAVES usually opposite or 

 whorled, simple, exstipulate. FLOWERS $ , irregular, in a raceme or spike or cyme, 

 sometimes fascicled ; peduncles often 1- or 2-flowered. CALYX persistent, 5-partite, 

 lobes unequal. COROLLA inserted on the receptacle, or on a fleshy disk between the 

 ovary and the receptacular cup, monopetalous, tubular, infundibuliform or campanu- 

 late, more or less oblique, usually gibbous at the base ; limb lengthened in front, 

 5-fid, 2-lipped, upper lip 2-lobed, lower 3-lobed, aestivation imbricate. STAMENS 

 inserted on the corolla-tube, usually didynamous, the fifth (posterior) being arrested 

 or absent, sometimes reduced to 2 by arrest of the 2 anterior or 2 lateral ones ; 

 anthers very often cohering, 2-celled (or 1-celled either by confluence of the cells or 

 by the arrest of one), terminal, or lateral by the bifurcation of the connective, dehis- 

 cence longitudinal. OVARY 1-celled, free or semi-inferior, rarely inferior, girt or 

 crowned with an annular or interrupted or unilateral disk ; placentas parietal, 2, 



