BUBIACE^. 



349 



Cephalanthus (fig. 345-348) may be considered as Nauclea with an 

 imbricate corolla, a descending ovule, cocci -with monospermous 

 endocarp, and seed without wing, but surrounded by a fleshy aril 



Cephalanthus oceidentalis . 



Fig. 345. Flower (4). Fig. 347. liong. sect. 



of firuit. 



Fig. 348. Seed (|). 



Fig. 346. Long, 

 sect, of flower. 



which extends from the umbihcus to the funicle itself (fig. 347, 348). 

 They are shrubs of warm and temperate. America, "southern 

 Africa " and tropical and North America, with opposite leaves and 

 mixed, capituliform, terminal and axillary inflorescences. 



Ourouparia (fig. 349-354) has the inflorescence of Namlea and 

 Cephalanthus, axillary and almost always pedunculate. Very often, 

 the flowers aborting, there remains only the peduncle, which is 

 transformed to an axillary hook, with inferior cavity. The axes of 

 various grades of cymes forming the inflorescence may be contracted 

 and very short, but they are often elongated, especially in the fruit 

 which consists of elongate septicidal capsules, with their bipartite 

 valves. The imbricate seeds are furnished at both ends with a long 

 wing, entire or bilobed. They are climbing shrubs, sustained by 



