1897.] G. King — Materials for a Flora of the Malayan Peninsula. 75 



Petiolules shorter than stipels, flowers white, bran- 

 ches of panicle strict, leaflets ovate-lanceolate acnte 5. 8. dubius. 

 Petiolules and leaflets beneath glabrous : — 



Leaflets thickly coriaceous (oblong, stipels obscure 



rigid) flowers purple, calyx densely rusty-pubescent... 6. S. crassifolius. 



Leaflets chartaceous, flowers white, calyx glabres- 



cent or puberulous : — 



Leaflets oblong, stipels obscure rigid, calyx glabres- 



cent, branches of panicle strict ... 7. 8. Maingayi. 



Leaflets oblanceolale, stipels manifest flexnous, 



calyx finely puberulous, branches of panicle lax ... 8. S. Ridleyi. 



1. Spatholobus ferrugineus Benth. PI. Jungh. 238. A robust 

 woody climber 30-60 feet long with a stem 3-6 in. thick ; branchlets 

 densely rusty-tomentose, brown beneath the tomentum, cylindric. Leaves 

 9 in. long ; leaflets 3, coriaceous dull green puberulous above, every- 

 where rusty-pubescent beneath, terminal ovate apex obtuse base rounded, 

 5-6 in. long 3 in. across, lateral obliquely elliptic 4"5-5"5 in. long as wide 

 as terminal, lateral nerves 5-7 pairs ascending and midrib prominent 

 beneath, cross-nerves and fine reticulate venation very distinct ; petiole 

 3-4 in. long rusty-pubescent, petiolules *25 in. also densely rusty ; stipels 

 subulate small ; stipules broad-based triangular "25 in. long, very densely 

 rusty, deciduous. Inflorescence 8-10 in long, in lax axillary panicles 

 with stout densely rusty-pubescent somewhat flattened peduncles, 

 branches 4-6 in. long again paniculate the bracts at their bases triangu- 

 lar subpersistent ; pedicels distinct "2 in. long in fascicles of 2-5, 

 bracteoles shorter than buds. Calyx densely rusty-pubescent '2 in. 

 long, teeth deltoid shorter than tube subequal except the rounded slight- 

 ly emarginate upper. Corolla claret-coloured to dark-blue, '25 in. long, 

 standard oblong deeply notched. Pod 3-5 in. long, softly velvety, 

 semi-trausparent except at the seed-bearing tip, - 7 in wide below *3 in. 

 wide at seed-bearing apex. Miq. Flor. Ind. Bat. I, 204. JDrebbelia 

 ferruginea Zoll. in Nat. en Geneesk. Arch. Ill, 79. 



Perak ; very common at low elevations, Wray 1941 ! 2008 ! 2381 ! 

 3258 ! Scortechini 213 ! 1466 ! Kunstler 3566 ! 6862 ! 7904 ! Penang ; 

 Govt. Hill, King ! Abrams ! Curtis ! Malacca ; Maingay 530 ! Griffith ! 

 Berry 1203! Goodenough 1437! Singapore; Hullett 211 ! Ridley 3609! 

 Distrib. Sumatra, Java, Borneo. 



From Singapore comes also a form collected twice by Mr. Ridley (n.5578! 

 n. 6394!) with a close red-silky tomentum beneath. This bears to ordinary 8. ferru- 

 gineus very much the relationship that Butea sericophylla Wall, bears to S. Roxburghii 

 (Butea parviflora) and it has not therefore been here separated as a variety, thongh 

 it is certainly a very distinct "form" of S. ferrugineus. While very near S. 

 gyrocarpus this species is quite readily separable by its nearly always rather smaller 

 leaves ; its always different tomentum ; its always larger flowers with much longer 

 pedicels, and its differently shaped more persistent bracts. The fruits are however? 



