GENERA OF UNCERTAIN POSITION. 341 



lopment of the seed in Kigelia by Messrs. Bentham and Hooker 1 , 

 who describe the seeds as somewhat compressed, with a coriaceous 

 testa intruded between the lobes of the cotyledons ; they are 

 thus almost bilocular, the cotyledons being broad, flat, plicately 

 bilobed, with a short centrifugal radicle 2 , thus offering a great 

 contrast to the long fleshy radicle figured by Delessert. 



Cannot we reconcile these differences by inferring that the de- 

 scription of the authors of the ' Genera Plantarum ' applies only to 

 the genus Tripinnaria, DC. (non Persoon). This genus is not 

 mentioned by Bentham ; it was almost confounded with Kigelia 

 by the elder DeCandolle. On this supposition w r e may regard 

 the details given by Delessert as a true explanation of the deve- 

 lopment of the seed in Kigelia ; and if Tripinnaria be accepted as 

 a genus distinct from Kigelia, we may embody in its generic cha- 

 racter the details given by Bentham and Hooker under Kigelia*, 

 viz. : — flowers large, red, arranged laxly on a pendent panicle ; fruit 

 large, subterete, indehiscent, 18 inches long, 6-7 inches in diameter, 

 pendent from a peduncle 6-7 feet long, — characters very different 

 from those figured by Delessert in Kigelia cethiopica 4 . 



From these details we may readily trace the analogy between 

 the embryo of Kigelia, with folded flattened cotyledons, and that 

 of Senapea, with fleshy plano-convex cotyledons; and, regarding 

 these circumstances as mere generic differences, we may thus 

 safely place Senapea in Crescentiacece near Kigelia. 



The Crescentiacece would thus combine six genera : — 1. Ores* 



centia; 2. T?armentiera\ 3. Minguartia ; 4. Kigelia; 5. Tripin- 



naria ; 6. Senapea. 



Man AG a. 



This genus of Aublet has nowhere been recognized. Managa 

 guianensis, Aubl. 5 , is a tree headed by a branching cope, with alter- 

 nate branches furnished with alternating entire coriaceous leaves, 

 acute at both ends, and petiolated. The inflorescence was not 

 seen ; but several globular fruits (3 to 5) proceed from the axils 

 or extremities of the branches, each upon a distinct pedicel, and 



1 Gen. Plant, ii. p. 1053. 



5 " Testa coriacea inter lobos cotyledonum intrusa, fere 2-locularia ; coty- 



ledones lata com plica to-2-lobae, lobis planis ; radicula brevis, centrif uga." 



8 Gen. Plant, ii. p. 1053. 



4 Deless. Icon. v. tab. 03 A. 



5 PI. Guian. rol. ii. Suppl. p. 3, tab. 360. 



