102. BIGNONIACE^. [3. Bignonia. 



3. BIGNONIA, L. 



(Limited according to Bentham and Hool^er.) 



Usually widely scandent shrubs Avith opposite 3-foliolate leaves or 

 the terminal leaflet converged into a tendril (rarely leaves ternately 

 or sub-pinnately decompound) ; leaflets nearly always entire. Stipules 

 or a stipiiliform leaflet rarely present {Panterpa, Miers). Flowers 

 large or mod.-sized, showy, in terminal or axillary cymes or panicles. 

 Calyx campanulate or tubular, mouth straight or oblique, truncate 

 or shortly 5-toothed or -lobed or sinuate, rarely shortly unequally 

 split or the ribs produced into subulate teeth. Corolla-tube often 

 elongate, usually widened above, straight or incurved with a more 

 or less 2-lipped limb ; upper lip 2-lobed, lower 3-lobed or -partite, 

 lobes broad spreading. Stamens didynamous, inserted near base of 

 corolla-tube, included or rarely shortly exsert, anthers glabrous, cells 

 finally divaricate, rarely {Pyrostegia, Presl.) mature parallel. Disc 

 pulvinate, annular or sub-cupular or {Cydista, Miers). Ovary 

 2-celled, ovules 1- or densely sub-2-3-seriate. Capsule compressed 

 parallel to the septiim, septifragally dehiscent, often leaving a 

 filiform portion of the wall detached or attached to the septum. 

 Seeds 1- or scarcely 2-seriate on the margins of the septum, flattened 

 with broad wing (sometimes wanting at the base and apex). 



A large American genus which is now usually yet further split up into several 

 genera such as are indicated in brackets above and in the following Key. I have 

 collected no specimens, and the following is a very incomplete account of some of 

 the most commonly cultivated in gardens in the provinces : — 



I. Tendrils short S-clawed (£/f/HOHw) \. tivguii-cafi. 



II. Tendi'ils slender, not clawed (sometimes in lower 3- 

 foliolate leaves) : — 



A. Disc present, conspicuous : — 



1. Corolla-lobes valvate in bud. Tendrils 3-fid '.Pyro- 



stegia) : — 

 Corolla tubular-funnel-shaped, lobes very short . . 2. ignea ivenu-da). 



2, Corolla-lobes imbricate : — 

 a. Tendrils simjile. 



Capsule slender linear (Armhidea) .... None described. 



Capsule broad, rough or echinate {Clyfostoma} -. — 



Flowers rose with darker stripes . . . .3. caUisfegioideH. 



Flowers purple 4. noterophilum. 



5. Tendrils repeatedly 3-fid (Doxaw^Aa) . . . . None described. 



B. Disc 0. Tendrils simple. Ovarj- scaly ( Q/rfe's^a)*:— 



Flowers rose or purple 5, cBquinocfiaUg. 



Flowers flesh-coloured or pale lilac, darker-veined . . 6. incamata. 



Flowers primrose-yellow 7. Chamherlaynii. 



Flowers pale mauve to crimson, throat primrose . . 8. magnijica,* 



1. B. unguis-cati, L. Syn. B. gracilis, Lodd. 



A shrub extensively climbing by means of its 3-fid claw-like 

 tendrils, with a pair of rich green shining broadly oval acuminate 

 leaflets aboiit 2" long and a profusion of bright-yellow flowers about 

 2" across or more. 



Native of Central America to Southern Brazil and the Argentine, Flowers two 

 or three times in the year. 



* The correct sub-genus of magnifica is not known to me as material is not avail- 

 able to determine it. 



651 



