Materials for a Flora of the Mahryan Peninsula. 105 



long, 1*25 ia. wide, glabrous on both surfaces, lateral nerves 10 pairs 

 prominent on both sides running almost to margin of blade, raclus 3-5 

 in., glabrous as are the petiolules '2 in. long. Flowers in lax axillary 

 panicles 6-8 in. long, sparingly branched, branches 2-5 in. long or less, 

 spreading, nodes tumid but not produced into stalks, bearing one or more 

 unequal filiform pedicels, rachis and pedicels sparsely adpressed-puberu- 

 lons, the pedicels '2 in. long ratlier longer than the calyx, bracteate at 

 their base, 2-bracteolate close under the calyx. Calyx campanulate '12 

 in. long, subglabrous, purplish, margin sinuate-toothed, Corolla appa- 

 rently white, "35 in. long, standard orbicular ecallose. Stamens mona- 

 delphous. Ot'ci?*?/ sparsely hairy ; ovules about 4. Derris uliginosa YX^. 

 ,Loureirii Benth. in Journ. Linn, Soc. lY, Suppl. 108 in part. Pongamia 

 uliginosa Wall. Cat. 5879 (E only) not of DC. 

 Penang ; Wallich ! 



Nearly related to D. marginata Bth. from which it cliflFers mainly in having 

 shorter pedicels 2-bracteolate close under the calyx, and in liaving rather smaller 

 leaflets witli more numerous nerves. It seems also very nearly related to the next 

 species from which it differs in its shorter panicles and its leaflets with more numer- 

 ous and more prominent nerves. It is besides nearly related to D. amosna but differs 

 in having thinner leaves, and laxer panicles with spreading not fastigiate branches. 



10. Derris floribunda Benth. Journ. Linn. Soc. lY, Suppl. 105. 

 A stout rambling shrub with glabrous whitish branches. Leaves 4-5 in. 

 long, leaflets 3-5, pale-green, thinly coriaceous, broadly elliptic-oblong, 

 base rounded, apex shortly and obtusely acuminate, 2-2*5 in. long 1-1 '5 

 in. wide, glabrous on both surfaces, lateral nerves 4 pairs very faint 

 beneath not visible above, rachis 3-4 in. long, glabrous as are the 

 petiolules 25 in. long. Flowers in long lax axillary panicles sometimes 

 15-18 in. long, sparingly branched, the branches 4-6 in. long, spreading, 

 nodes distant tumid, sometimes pi-oduced into stalks bearing 2-6 unequal 

 filiform pedicels, rachis a,nd pedicels sparsely spreading-puberulons, the 

 pedicels '4 in. long, 2-bracteolate at base of calyx. Calyx campanulate 

 •12 in. long, purple-brown, margin crenate. Corolla white, "3 in. long, 

 standard orbicular ecallose with a green spot above the long claw. 

 Stamens monadelphous. Ovary sparsely puberulous, ovules 2-3. Bra- 

 chypterum florihimdum Miq. Flor. Ind. Bat. I, 139. 



Perak; Larut, Scortechini 2180 ! Distkib. Java. 



The Perak specimens have pedicels rather more glabrous than the Java ones ; 

 otherwise they agree very closely. Miquel refers the plant doubtfully to Bra- 

 chypterum ; to the writer it seems as if its affinities were rather with DipterocJerris ; 

 unfortunately the pod is still unknown. The Perak plant is 2-ovuled, the Java 

 one 3-ovuled, in all the flowers examined by the writer. 



11. Derris amcena Benth. PI. Jungh. 252. A large glabrous 

 climber reaching 50 feet, with black branches. Leaves Q-S in. lono- 



105 



