102. BIGNONIACE.E. 



2-sexual, zygoniorphic in racemes or panicles Avith inconspicuous 

 bracts (sometimes solitary or clustered on the old wood in exotic 

 genera). Calyx spatliaceous or 2-5-lobed. Corolla usually tubular 

 below, then ventricose, subregular or 2-lipped, lobes usually sub- 

 equal and imbricate, rarely valvate, in bud. Stamens -i didynamous, 

 often Avith the 5th present as a staminode, rarely {Oroxyhim) 5 

 perfect, usually inserted anteriorly in the corolla; anthers 2-celled, 

 usually included, cells parallel or divaricate. Disc usually con- 

 spicuous, rarely 0. Ovary 2-celled (or, in Crescentiese, which are all 

 exotic, 1- celled) ; style long, stigma of 1-2 elliptic or linguiform 

 lobes. Ovules many, 1-niore-seriate in each cell, anatropous. Fruit 

 elongate and capsular and 2-valved (in indigenoiis genera), the valves 

 separating from the often swollen axis, rarely (some exotic genera) 

 indehiscent. Seeds flat or trigonous, prominently winged, exalbu- 

 minoiTS; cotyledons flat or folded. 



Germination (in the few cases observed) epigeal with the expanded cotyledons 

 deeply 2-lobed and petioled. 



I. Ovary 2-locular. Fruit capsular, 2-valved (genera 1-9) :— 



A. Capsule septifragally dehiscent, the valves parallel to the 



compressed septum {BlgnoniecE) : — 



1, Trees with 2-3-piunate leaves : — 



Small tree. Fls. dark red, corolla very broad. St. 5 . 1. Oroxyliini. 

 Tall tree. Flowers white with long slender tube . 2. Ilillingtonia. 



2. Exotic climbers with showy flow^ers, leaves 3-foliolate 



or 2-foliolate and the terminal converted into a 

 tendril 3. Blgnonla. 



B. Capsule loculicidally dehiscent, the valves transverse to 



the septum, or septum (with placentae) terete corky : — 



1. Exotic climbers or with branches rooting at the nodes, 



leaves pinnate, never ending in a tendril . . .4. Teeoma. 



2. Trees or erect shrubs : — 



«. Leaves simple i. Teeoma 



{Tecomella). 

 b. Leaves compound : — 



i. Staminodes short or : — 

 * Calyx not spathaceous : — 



! Leaves 1-pinnate (rarely in Teeoma sub-2-pin- 

 nate) -. — 

 Exotics. Calyx equally 5-toothed. Septum 



compressed 4. Teeoma 



{Stenolobium), 

 Indigenous. Calyx 3-o-lobed. Septum terete, 



seeds grooved between the wings . . 5. Sfereogpermiim. 

 !! Leaves 2-3 pinnate. Septum terete. Seeds 



flat, not grooved between the wings . . G. Eadermachera. 

 ** Calyx spathaceous: — 



Corolla with elongate tubular base white . . 7. Dolichandrone. 

 Corolla broadly campanulate, red, tubular 



base very short 8. SpatJiodea. 



ii. Staminode very long, clavate at tip : — 



Exotic tree with pretty 2-pinnate leaves and blue 

 flowers 9. Jaearanda, 



II. Ovary 1-locular or if 2-locnlar then flowers clustered on the 



old wood. Exotics {Cresceyitiece) : — 



A. Calyx spathaceous. Ovary 2-locular. Leaves 3-foliolate 10. Farmenfiera. 



B. Calj'x not spathaceous. Ovary 1-locular : — 



Leaves pinnate. Racemes on very long pendulous 



peduncles 11. Xigelia. 



Leaves simple, alternate. Flowers clustered or solitary . 12. Crescentia _ 



(p. 6G0). 



649 



