8 DISTEIBUTION OF THE &ENEEA. 



Class II. SYMPHYANTHEREJE : stamens connivent, each with 2 parallel anther- 

 cells introrsely fixed upon a much longer horny connective, usually membranaceous or 

 cuspidate at the apex, and terminating below in 2 longer or shorter forks, the pollen- 

 cells adhering to the clavuncle of the style, all thus held together in a cone. 



Tribe 11. TABERNiEMONTANEiE : 2 follicles, ovoid or oblong, often pointed, dehiscing along their 

 ventral suture, whose introflexed margins are seminiferous : pericarp thick, fleshy or cori- 

 aceous : seeds many, attached or suspended each by a more or less elongated fleshy funicle 

 resembliug pulp ; seeds ovate, dorsaUy convex and striated, channelled on the ventral face, 

 with a callous hilum in the middle, and there affixed to near the end of the funicle, the 

 other end of which is suspended from the suture; testa coriaceous : embryo heterotropous, 

 in corneous albumen, with foliaceous cotyledons and a superior terete radicle. 

 Peschiera, Anacampta, Stemmadenia, Rejoua, 



Bonafousia, RUgospira, Merizadenia, Orchipeda, 



TaberrKsmontana, Phrissocarpus, Anartia, Voacanga. 



Taberna, Codonemma, Geissospermum, 



Tribe 13. Maiouetie^ : 2 follicles, linear, oblong, or terete, dehiscing along their ventral 

 suture, the margins of which are thickened introrsely into a solid resilient placenta, semi- 

 nigerous on both sides : seeds many, compressed or cylindrical, oblong, imbricated, sub- 

 winged at the extremities with the lateral margins incurved, peltately affixed by a median 

 hilum : embryo heterotropous, linear or oblong, in thin albumen, with a superior radicle : 

 seeds quite glabrous. 



Malouetia, Amsonia, Hostmannia, Blaberopus, 



Thyrsanthus, Rhazya, Ellertonia, Dissuraspermum. 



Gonioma, Lepimia, ■ Alstonia, 



C. Seeds anatropous without an apical coma. 



Tribe 13. RoBBiEiE : 2 long follicles dehiscing along their ventral suture, the margins of which 

 expand internally into 2 septiform membranaceous placentas bearing many imbricated 

 seeds, which are oblong, compressed, suspended from the ventral face, marked by a longi- 

 tudinal median hilum; generally clothed with many long, soft hairs, some extending far 

 beyond the summit, which is often prolonged into a slender rostrum, sometimes very long 

 and covered plumosely with many fine setaceous hairs, often mistaken for a coma : embryo 

 in thin albumen, with a superior radicle. 



■Robbia, Chariomma, Rhabdadenia, Urechites, 



Elytropus, Adenium, Laubertia, Epigynum. 



Skytanthus, Eriadenia, 



Tribe 14. OdontadeniejE : 2 elongated follicles (or 1 by abortion) dehiscing along their ventral 

 suture, the margins of which are invariably expanded into 2 broad septiform placentae 

 studded extrorsely with numerous nodules in longitudinal series, each supporting a seed : 

 seed long, terete, erect, narrow at its two extremities, everywhere bare ; embryo terete, in 

 albumen, with a basal radicle. 



Odontadenia. 



