328 



THE JOURNAL OF BOTANY 



AA. Corolla-lobes imbricate or contorted (Hillie^). 

 B. Lobes contorted (or one external in CalycopJtyllum). 

 One or more calyx-lobes expanded as an attractive leaf- 

 member. 

 Flower zygomorpliic (Peru) 



Flower regular. 



Calyx becoming deeply two-lipped . . 

 Calyx truncate . . 

 Calyx-lobes all subequal, unexpanded 

 Stamens unequal 

 Stamens equal. 

 Stigma clavate. 

 Calyx caducous : seeds bearded . . 

 Calyx persistent : seeds not bearded 

 Stigma bifid . . 

 IB. Lobes imbricate. 

 Flower regular. 

 Corolla urceolate . . 

 Corolla not urceolate. 



Placenta semicircular, adnate to septum : filaments 



free, inserted on the corolla-tube 

 Placenta stalked, pendulous : filaments connate 

 below, almost epigynous (West Indian plant) 

 Flower zygomorpliic. 



Style clavate : flowers large : placenta bell-shaped, 



stalked 

 Style with two linear arms : flowers small, linear 

 corolla-lobes : placenta semicylindric, adnate to 

 septum 



Henriquezie^. 



Calyx 4-merous, the limb circumi=ciss 



Calyx 5-lobed, the lobes separately deciduous 



Condamine^. 



Calyx-lobes unequal, one or more expanded as an attractive 

 leaf-organ. Corolla terete. 

 Corolla-lobes glabrous within ; stamens aflixed at middle 



of corolla. Seeds small, unwinged . . 

 Corolla-lobes tomentose within ; stamens aflixed at base 

 of corolla- Seeds appreciably wmged (chiefly North 



Am.) 



Calyx-lobes all similar. 

 Corolla-tube elongated, angled, lobes reduplicate-valvate. 

 Corolla subcampanulate, considerably widened above. . 

 Corolla tubular, not appreciably widened above 

 Corolla-tube not elongated, terete, lobes simply valvatc. 

 Calyx deciduous, anthers dehiscing longitudinally 

 Calyx persistent. 



Anthers dehiscing longitudinally. 

 Flowers not small (2-5 cm.) in few-flowered 

 racemes ; calyx entire ; corolla-tube twice as 

 long as lobes (Hayti plant) 

 Flowers very small, in many-flowered inflore- 

 scences ; corolla-lobes almost free 

 Anthers dehiscing by pores. 



Pores terminal, at apex of anther . . 

 Pores lateral, below apex 



Cajnrojia 



[including Mona- 

 deJphanthus, with 

 united filaments] 



Schizocalyx 

 Calycophyllum 



Fcrdinandusa 



Hillia 



Cosmibuena 



Ravitia 



Si)rucea. 



Exostemma 

 Solenandra 



Coutarea 



Molopantlu'.ra 



Henriqiiezia 

 Flatycarpum 



Pogon(q)us 

 P'mcliiicya 



Portlandia 

 Isidurca 



Condaminea 



Picardica 



Cldmarrhis 



Rust la 

 Tresaiithera 



