548 civ. bignoniace^e. [Oroxylum. 
the Peninsula till I introduced it into Singapore about 1908, but 
there is a specimen from Malacca in Maingay’s herbarium; it 
appears to be Burmese in origin. 
Trees. 
Stamens 5; leaves tripinnate very large; capsules 
3 to 4 ft. long.1. Oroxylum 
Stamens 4; leaves 1- to 3-pinnate. 
Calyx spathaceous split on one side; corolla 
white, tube long.2. Dolichandrone 
Calyx lobed or truncate. 
Capsule winged; flowers large in a large erect 
panicle. 3 - Pajanelia 
Capsule not winged. 
Seeds trigonous; wings corky; flowers 
medium . . . . . .4. Stereospermum 
Seeds flat; wings hyaline ; flowers medium 5. Radermachera 
Calyx sub-globose irregularly 3- to 5-lobed; 
flowers large, light yellow . . .6. Heterophragma 
Leaves simple, large, panicle head-like; 
flowers yellow.7. Diplanthera 
Climber; leaflets 5; flowers in axillary and terminal 
umbels, white and pinkish . . .8. Pandorea 
1. OROXYLUM, Vent. 
Slender tree hardly branched. Leaves at the top of the bare 
stem, 3-pinnate very large; leaflets numerous, entire. Flowers 
large in an erect terminal raceme. Calyx large, leathery, cam- 
panulate, truncate. Corolla leathery, tube widely ventricose, 
lobes 5. Stamens 5, insert near base of tube; anthers 2-celled. 
Ovary contracted at base. Capsule flat sword-shaped, very large, 
bivalved. Seeds numerous, flat with large thin wing. Species 1, 
tropical Asia. 
(1) O. indicum Vent, Dec. Gen. Nov. 8; Prain, Journ. Soc, 
Beng., l.c. 376. 
Tree 30 to 40 ft. tall, not branched unless cut back. Leaves 
5 ft. long and as wide; leaflets very many, ovate acuminate, rather 
thin, base unequal except the terminal one cuneate. Raceme 3 to 
6 ft. long, erect, flowers opening one at a time. Calyx 1 in. long 
with 5 short lobes. Corolla 3 in. long, 1*5 in. wide, dull brown pink 
outside, creamy within. Capsule pendent about 4 ft. long, 3-5 in. 
wide. Seeds thin, papery, 3 in. long, 1-5 in. wide, flat sub-rect¬ 
angular, very numerous. Hab. By rivers and in lowland swampy 
country very abundant and conspicuous. Malacca, Selandor. 
Pahang along river. Selangor, Kampong Kerling (Goodenough); 
common all over the mining districts. Perak, Teluk Anson. 
Penang, Pulau Betong (Curtis). Perlis, Kanga. Distrib. Indo- 
Malaya, Siam. Native name : Bulai. 
2. DOLICHANDRONE, Fenzl. 
Tree. Leaves opposite, pinnate. Flowers in terminal racemes 
or panicles, few, large. Calyx spathaceous cleft down the front. 
