550 CXLIV. APOCYNE^J. 



acuminate or mucronate, often sagittate, sometimes slightly coherent, dehiscence 

 longitudinal ; pollen granular, applied directly to the stigma. CARPELS 2, sometimes 

 distinct, sometimes cohering into a 2-1-celled ovary, sometimes 3-4, at first undi- 

 vided, separating after flowering into 3 or 4 long stipitate ovaries, united at their 

 tips by the persistent base of the style (Lepinia) ; style single, uniting the ovaries, 

 usually thickened towards the top, often dilated into a disk below the stigma ; stigma 

 generally bifid ; ovules usually numerous, anatropous or semi-anatropous. FRUIT 

 various. SEEDS usually compressed, often comose. EMBRYO straight ; albumen 

 cartilaginous or fleshy, sometimes scanty or ; position and direction of the radicle 

 various. 



SUB-ORDER I. CARISSE^E. Ovary 2-celled ; placentation on the septum. Fruit a 

 berry. 



PRINCIPAL GENERA. 



Hancoruia. Vnhea. Melodious Carissa. Connm. 



Ambelania. Pacouria. Collophora. Carpodinus. 



SUB-ORDER II. ALLAMANDE^E. Ovary unilocular. Placentas 2, parietal. Cap- 

 sule 2-valved. 



GENUS. 

 "Allamanda. 



SUB-ORDER III. OPHIOXYLE^E. Fruit fleshy. Drupes 2, 1 often aborted. 



PRINCIPAL GENERA. 



Tanghinia. Ophioxylon. * Cerbera. Oclirosia. 



Hunteria. Alyxia. Thevetia. Hauwolfia. 



SUB-ORDER IV. EUAPOOYNE.E. Fruit with 2 follicles, sometimes fleshy, pulpy, 

 generally dry, often reduced to one by abortion, rarely united into a capsule. 



PRINCIPAL GENERA. 



[The following genera do not fall into any of the above defined sub-orders. 



Ovary 1 -celled ; placentas parietal. Fruit a berry. Willughbeia, Lan- 

 dolphia. ED.] 



For tbe affinity of Apocynea with Loganiacets eee this faraily. They are only distinguished from 

 Awtepindea by the itamens, and from Gentianete by their milky juice, usually woody stem, and the distinct 



