342 Flora of the Malayan Peninsula. 



Calyx without wings or ridges : — 

 Calyx-segments narrow . . . . . . 7. Vandellia. 



Calyx-segments broad . . . . . . 8. Aktanema. 



Stamens only 2 posterior fertile, inserted within corolla-tube ; 

 anterior pair reduced to staminodes on corolla-throat : — 



Calyx 4-lobed, the outer lobes very broad . . . . 9. Cubanga. 



Calyx 5-lobed, the lobes all narrow . . . . . . 10. Bonnaya. 



Corolla with upper lip or 2 upper lobes inmost in bud ; rarely 

 lobes imbiucate : — 



Corolla-tube very short ; lobes 4, sub-equal, imbricate ; stamens 



4, sub-equal . . . . . . . . . . 11. Scopakia. 



Corolla-tube elongated ; lobes 5, 2-labiate : — 



Calyx tubular, 5-lobed . . . . . . . . 12. Steiga. 



Calyx spathaceous, split in front . . . . . . 13. Centeantheka. 



1. WiGHTIA, Wall. 



Large epiphytic climbers, eventually becoming trees. Leaves mostly 

 or all opposite, quite entire, coriaceous. Flowers in usually axillary, 

 often thyrsoid racemes ; large, rosy or purple, pubescent. Calyx cam- 

 panulate, irregularly 3-5-lobed. Corolla-tube incurved, upper lip erect, 

 2-lobed, lower spreading, 3-fid. Stamens 4, didynamous, ascending, 

 exserted ; anthers oblong, sagittate, cells parallel. Style long, tip 

 incurved ; stigma simple. Capsule oblong-ovoid, septicidal, many- 

 seeded, valves long, separating from the placentiferous axis, which is 

 2-partite or entire. Seeds linear, ascending, nucleus slender, testa 

 membranous, broadly winged all round ; albumen ; embryo straight. 

 — DiSTEiB. Species 3, all S.E. Asiatic. 



The species of this genus exhibit the primarily epiphytic but subsequently arboreal 

 habit characteristic of many species of Ficus. Though often loosely spoken of as 

 parasites, and though, as a matter of fact, they frequently strangle the trees on which 

 they become established, epiphytes of this class are not parasites in the physiological 

 sense. 



WiGHTiA BOENEENSis, Hook. f. in Ic. Plant. XV. 35, t. 1444 

 (1883). A tree, 20 feet in height and upwards, commencing life as an 

 epiphyte and flowering most freely in that condition. Leaves opposite, 

 thinly coriaceous, glabrous as are the lenticellate branchlets, drying 

 brown, margin entire, outline elliptic, apex obtusely acuminate, base 

 cuneate, narrowed to the petiole, main-nerves 2-3-jugate ; length 3 to 

 4 in., breadth 1-25 to 1-75 in. ; petiole -75 in. long. Flowers opposite or 

 whorled on the rachis of axillary or terminal racemes, pedicels slender, 

 rigid, spreading, -5 in. long ; rachis stout, glabrous, erect, 6-10-flowered, 

 3 to 6 in. long. Calyx campanulate, margin entire, "4 in. across. 

 Corolla trumpet-shaped, incurved, purple, densely beset with a fine 

 stellate tomentum, 2 in. long, lobes rounded, throat slightly enlarged. 

 Stamens inserted near base of corolla ; filaments slender, far-exserted ; 



