Materials for a Flora of the Malayan Peninsula. 225 



densely rusty- velvety externally. Corolla 1*5 in. across, petals 1 in. 

 long, oblong, yellow, the thickened base very densely hairy on bofch 

 sides, the blade glabrous. Statnens 10, free, filaments equal, pubescent 

 at the base. Ovary densely villous, style sparsely pubescent through- 

 out, the stigma large peltate glabrous. Pod 4-5 in. long, l-25-l*4 in. 

 across, rigid, 1-5-seeded, narrowed at both ends, faintly puberulous 

 and not veined externally. Csesaljpinia Fmlaysoniana Grab, in Wall. 

 Cat. 6971. 0. dasyracUs Miq. Flor. Ind. Bat. Suppl. 292. 



Perak ; Goping, Scorteclmii, 1994! Trang, Ktmstler IS94< \ 8172! 

 Malacca; common, Griffith! Maingay 560! Eolmberg 884! Derry 

 1049 ! DiSTRiB. Sumatra. 



The native name in Malacca is " Batai " or *' Kayu Butai." 



There is a third species of Peltophorum in Sumatra (P. grande), a very tall tree 

 •with white flowers tinged with pink. 



55. C^SALHNIA Linn. 



Robust erect trees, shrubs, or woody prickly climbers. Leaves large, 

 abruptly bipmnate. Flowers showy, yellow, in copious axillary racemes. 

 Calyx deeply cleft, with the disc confined to its base, the lobes imbri- 

 cated, the lowest the largest, cucullate. Petals spreading, usually orbi- 

 cular with a distinct claw, the uppermost smaller than the others. 

 Stamens 10, free, declinate ; anthers oblong, uniform, versatile. Ovary 

 sessile or subsessile, few-ovuled ; style filiform, sometimes clubbed at 

 the tip, stigma terminal. Pod oblong or ligulate, thin and flat, or 

 thicker and subturgid, indehiscent or dehiscent, smooth or (in subgen. 

 Guilandina) armed all over with wiry spines. Species about 40, widely 

 spread in the tropics of both hemispheres. 



Pod armed with abundant wiry prickles ; petals narrow 

 (Guilandina) : — 



Leaves stipulate, leaflets small, bracts squarrose ... 1. C.Bonducella. 



Leaves without stipules, leaflets larger, bracts ascending ... 2. C. Bonduc. 

 Pod unarmed, petals broad : — 



Pod dry, thin-valved with narrow sutures (Euc^salpinia) : — 

 Leaflets few, coriaceous, large ; pods short, seeds soli- 

 tary or rarely 2 (§ Nugaria) ... ... ... 3. C. Nuga. 



Leaflets many, membranous or subcoriaceous, small ; pods 

 longer than broad, seeds 5-8 : — 



Stamens long, far-exserted ; petals long-clawed (§ Cassal- 



pinaria)... ... ... ... .. 4, C. jpulcherrima. 



Stamens short, little-exserted ; petals short-clawed 

 (§ Sappania) : — 

 Petals orbicular, flowers "75 in. across : — 



Stipules 0, petals subequal, pod wingless broadly 



blunt-pointed with recurved beak ... ... 5. G. Sappan. 



225 



