BIGNONIACEAE 427 



paniculate, rarely solitary or fascicled, irregular, mostly large and showy, 

 perfect. Calyx gamosepalus, campanulate or tubular, or split down one 

 side and spathe-like, long or short, sometimes 2- to 5-lobed or toothed. 

 Corolla long or short, tubnlar-ventricose, the limb often campanulate, 

 spreading, often 2-lipped, 5-lobed. Stamens 4, in 2 pairs, or 5 perfect, 

 or the 5th represented by a staminode. Disk cushion-like or annular. 

 Ovary 2-celled; ovules many. Fruit on elongated, dehiscent capsule with 

 numerous winged seeds, or oblong, cylindric, or globose, indehiscent, with 

 wingless seeds imbedded in pulp. 



Genera 100, species 450 or more, tropics generally, 9 genera, mostly in- 

 troduced, and about 18 species in the Philippines. 



1. Leaves 2- or 3-pinnate. 



2. Leaflets small, less than 1 cm long 1. Jacwranda 



2. Leaflets large, 5 to 15 cm long; flowers dark-purple; capsule up to 



1 m in length 2. Oroxylum 



1. Leaves simply pinnate, or simple. 

 2. Fruit dehiscent; seeds winged. 



3. Leaflets toothed; flowers yellow, 4 to 4.5 cm long; cultivated. 



3. Tecoma 

 3. Leaflets entire; flowers 10 cm long or more. 



4. Flowers white, up to 18 cm long 4. Dolichandrone 



4. Flowers red, 10 cm long; cultivated only 5. Spathodea 



2. Fruits indehiscent; cultivated only. 

 3. Leaves pinnate ; flowers and fruits on very long pendulous peduncles. 



. 6. Kigelia 

 3. Leaves simple or 3-foliolate, fascicled >t the nodes; flowers axillary 

 or cauline, solitary or fascicled; fruit very large, globose. 



7. Crescentia 



1. JACARANDA Jussieu 



Glabrous or somewhat pubescent trees with opposite, bipinnate leaves, 

 and numerous small leaflets. Flowers blue or purple, in terminal panicles. 

 Calyx small, bell-shaped or shortly tubular, 5-toothed. Corolla-tube en- 

 larged above, straight or curved, the limb somewhat 2-lipped, 5-lobed. 

 Stamens 4, in . 2 pairs, included, with a staminode about as long as the 

 stamens. Disk thick, cushion-like. Ovary sessile, 2-celled. Fruit an ob- 

 long, ovate, or suborbicular capsule, loculicidally dehiscent, compressed. 

 Seeds compressed, surrounded by a hyaline wing. (A Brazilian name.) 



Species about 30, all native of tropical America, 1 introduced and cul- 

 tivated in Manila. 



* 1. J. OVALIFOLIA R. Br. (/. mimosaefolia D. Don). 



A small or medium-sized glabrous tree. Leaves bipinnate, 20 to 25 cm 

 long; pinnae 7 to 14 pairs, 9 cm long or less; leaflets oblong-rhomboid, 6 to 8 

 mm long, the terminal one larger. Inflorescence terminal, cymose. Flowers 

 pale-blueish-purple. Calyx small. Corolla 5 cm long, the tube slender and 

 curved below, inflated above, the limb 2-lipped, one lip 2-lobed, the other 

 3-lobed. 



Cultivated for ornamental purposes, Singalon, Cementerio del Norte, etc., 

 fl. Oct.-May; of recent introduction here, a native of tropical America. 



