CLXVII. CKESCENTIE^J. 603 



TRIBE II. TECOME^}. 

 Septum perpendicular to the valves, Dehiscence loculicidal. 



PRINCIPAL GENERA. 



* Spathodea. * Pandorea. Argylea. Tapebuja. 

 Zeyhera. * Catalpa. * Tourretia. * Tecoma. 



* Jacaranda, Stereospermum. 



TEIBE III. 

 Capsule with 2 cells, the posterior only opening along its median line. 



GENERA. 

 * Incarvillea. *Ampbicome. 



TRIBE IV. EOCREMOCARPE^E. 

 Capsule 1 ^celled ; valves 2, placentiferous in the middle. 



GENUS. 

 * Eccre'mocarpus. 



Biynoniacece are more or less nearly related to most monopetalous hypogynous anisostemonous 

 regular-flowered families. We have indicated their affinities with Scrophularine<e. They similarly 

 approach Acanthacete, as also in the 2-celled ovary, -2-valved capsule and exalbuminous embryo ; but 

 AcanthacetK differ in the contorted aestivation of the corolla [in some only], the campylotropous ovules, 

 and the retinacula of the seed. Their winged seeds alone separate them from Sesamea, and they 

 further differ from Pedalinece in being capsular. They are also allied to tribe Cyrtandre<s of Gesneracea; 

 (which see). Finally, they offer an evident resemblance to the genus Cob&a, in Polemoniacea, in 

 the hypogynous corolla, the disk, many-celled ovary, the free seminiferous septum of the capsule, winged 

 seeds, and compound leaves ending in a tendril ; but in Cob&a the leaves are alternate, the corolla is 

 regular, isostemonous, and contorted in aestivation, and the embryo is albuminous. 



The wood of some climbing Biynoniacea represents in section a sort of Maltese cross, resulting from 

 the unequal development of the layers of liber (Biffnonia cruets and B. capreolata). This family, remark- 

 able for the beauty of its flowers, principally inhabits the tropics, especially of America. Some species 

 are used in native practice, as TJruparaiba (Biffnonia J^eucoa-i/loti), of tropical America, the bark of which 

 is supposed to be an antidote to the Manchineel. The leaves of many species of Jacaranda contain an 

 acrid and astringent principle, whence they are employed in Brazil as a prophylactic against glandular 

 diseases. 



[CLXVII. 



D.C. CRESCENTIACE^E, Lindl.) 





Small TREES. LEAVES alternate or fascicled, simple, exstipulate. FLOWERS 

 from the old wood. CALYX inferior, undivided, rupturing irregularly. COROLLA 

 hypogynous, monopetalous, inferior, sub-2-lipped, lobes imbricate in aestivation. 

 STAMENS 4, inserted on the corolla, didynamous, fifth between the posterior pair and 



1 This Order is omitted in the original work. 



