Materials for a Flora of the Malayan Peninsula. 75 



Petiolules shorter than stipels, flowers white, bran- 

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

 Petiolales and leaflets beneath glabrous : — 



Leaflets thickly coriaceous (oblong, stipels obscure 



rigid) flowers purple, calyx densely rusty-pubescent... 6. 8. crassifolius. 



Leaflets cliartaceons, 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. 8. Bidleyi. 



1. Spatholobus ferrugineus Benth. PI. Jiingli. 238. A robasfc 

 woody climber 30-60 feet long with a stem 3-6 in. tliic-k ; branclilets 

 densely rasty-tomentose, brown beneath the tomentum, cyliiidi-ic. Leaves 

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

 where rusty-pubescent beneath, terminnl ov^ate 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 subperdistent ; 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-transparent except at the seed-bearing tip, '7 in wide below '3 in. 

 wide at seed-bearing apex. Miq. Flor. Ind. Bat. J, 204. Drehbelia 

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



Perik ; very common at low elevations, Woai/ 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 (d. 5578! 

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

 gineus very much the relationship that Bafea sericophylla Wall, bears to 8. Boxhtirgliii 

 {Butea parvifiora) and it has not therefore been here separated as a variety, though 

 it is certainly a very distinct "form" of S. ferrugineus. While very near 8. 

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

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

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



75 



