376 cvii. BIGXONIACE.E. (C. B. Clarke.) [Nyctocalos. 



ORDER CVIT. BIGNONIACEJE. (By C. B. Clarke.) 



Trees (Nyctocalos a large climber, Amphicome a herb). Leaves opposite, 

 rarely whorled (in Amphicome alternate), 1-2-3-pinnate or sometimes 

 undivided. Panicles or racemes terminal, rarely on short lateral branches ; 

 bracts inconspicuous ; flowers showy, hermaphrodite, irregular. Caly.r 

 gamosepalous, campanulate (in the Indian species), valvate, spathaceous or 

 2-5-lobed. Corolla tubular- ventricose ; mouth 2-lipped ; lobes 5, subequal 

 or slightly unequal, bilabiately imbricate in the bud. Stamens 4, didyna- 

 mous, rudiment of the fifth often present (5 subequal in Oroxylum) ; 

 inserted at the point where the corolla-tube is suddenly swollen ; filaments 

 linear, glabrous or hairy only at the base ; anthers 2-celled, included or 

 rarely shortly exserted ; cells elliptic or narrowly oblong, dehiscing by longi- 

 tudinal slits, parallel or divaricate. Disc usually cushion-like or annular. 

 Ovary subsessile, 2-celled ; style long glabrous, stigma of 2 elliptic lobes ; 

 ovules in many rows (in Amphicome in 1-2 rows) grouped in a double series 

 in each cell, "anatropous. Capsule mostly elongate, loculicidally or septici- 

 dally 2-valved ; septum in fruit enlarged, deciduous together with the 

 placentas. Seeds compressed discoid (rarely subtrigonous) prominently 

 winged, exalbuminous. Species 450, in the tropics of the whole world, a 

 few in the warm temperate zones of both hemispheres. 



Herb. Leaves alternate, 1-pinnate 11. AMPHICOME. 



Large climber. Leaves opposite, trifoliolate 1. NYCTOCALOS. 



Tree. Leaves opposite, 2-3-pinnate. Stamens" 5 perfect . 3. OEOXYLUM. 

 Trees. Leaves opposite. Stamens 4 perfect. 



* Leaves undivided. 



Leaves narrowly oblong, glabrous 4. TECOMA. 



Leaves roundly ovate, pubescent 10. DIPLANTHEEA. 



** Leaves l.-2-pin?iate> 



Calyx large. Capsule winged 9. PAJANELIA. 



Calyx spathaceous, cleft to the base on one side 5. DOLICHANDBONF. 



Calyx irregularly 3-5-lobed 6. HETEEOPHEAGMA. 



Calyx shortly lobed or truncate. Septum of the capsule 



cylindric, spongy 8. STEBEOSPEEMTJM. 



**** Leaves 2-3-pinnate. 



Corolla-tube narrowly linear, very long 2. MILLINQ-TONIA. 



Corolla-tube cylindric-ventricose 7. MAYODENDBON. 



Siffnonia macrostacJiya, Iceta and glauca> Wall. Cat. 650-i, 6505, 6506, were 

 collected in Ava, not in British India. Bignonia oxyphytta, DC. Prodr. ix. 169, is 

 said to be from India in Wallich's Herbarium. There is no plant under that name 

 now in Wallich's Herbarium, nor is it likely that any tree of the genus Bignonia is 

 wild in India. 



I. NYCTOCALOS, Teysm. $ Sinn. 



Large glabrous climbers. Leaves opposite, 3-foliolate ; leaflets petioled, 

 entire. Peduncle terminal, long, few-fld. Calyx tubular- campanulate, 

 truncate or with 5 short teeth. Corolla large, white; tube very long; 

 segments 5, round. Stamens (in the Assam species) 4, didynamous, 



