Ptyssiglottis.] cvi. acanthace^. 605 
(5) P. flava Ridl. Leda flava Ridl. Journ. Roy. /Is. Soc. S. 
By. 61, p. 36. 
Herb about 3 ft. tall. Leaves ovate, shortly acuminate, base 
narrowed, rather fleshy, silvery; nerves 8 pairs, prominent; 4 in. 
long, 2 in. wide; petioles *5 in. long. Panicle terminal of 3 to 4 
strict branches scurfy. Flowers numerous. Bracts linear acute, 
•1 in. long. Calyx as long; sepals linear subulate. Corolla yellow, 
•2 in. long, tube thick. Stamens 2; anther-cells parallel. Hab. 
Rare in swampy woods, Perak, Tapah near Temoh (Ridley). 
(6) P. chrysea Ridl. 
Stem unbranched, woody, creeping ascending, 1 ft. long, erect, 
part 6 in. long. Leaves rather fleshy lanceolate or elliptic acumin¬ 
ate, base shortly narrowed, glabrous, -5 in. long, 1*75 to 2-25 in. 
wide; petioles -3 to -4 in. long. Spikes 2, terminal, one-branched, 
2*5 in. long, many-flowered. Bracts minute persistent. Calyx 
dilate at base, lobes lanceolate acuminate. Corolla yellow, -25 in. 
long, tube straight cylindric, lips -i in. long; anther-cells parallel 
oblong on the same level. Hab. Mountain woods. Rare. Selan¬ 
gor, Ulu Gombak (Ridley). 
(7) P. rubro-lutea Ridl. 
Slender creeping ascending plant with long internodes 6 in. 
tall, pubescent. Leaves in equal pairs elliptic-lanceolate, blunt, 
base narrowed, scurfy pubescent beneath with many raphides, 
2 to 3 in. long, -6 to 1 in. wide; petioles slender, -2 in. long. Raceme 
terminal, 4 in. long. Flowers about 10, solitary or paired, sessile. 
Sepals linear acuminate, glabrous. Corolla -25 in. long, glabrous, 
lips equilong, lower broader with short lobes, upper lobe and tube 
brown red, with two pale stripes, lower yellow. Stamens 2, fila¬ 
ments glabrous; anther-cells ellipsoid, not spurred one above the 
other. Capsule -5 in. long, base slender, tip clubbed very shortly. 
Seeds 2. Hah. Kelantan, Chaning Woods (Ridley). 
(8) P. radicans Moore, Journ. Bot. 1922, p. 358. Leda 
radicans Clarke, l.c. 692. 
Creeping and rooting; stems 10 in. long, branched pubescent. 
Leaves ovate-rhomboid or nearly rounded at base, 1-5 in. long; 
petioles -25 to *5 in. long. Inflorescence terminal depauperate 
of 2 to 3 distant flowers. Sepals -125 in. long, linear pubescent. 
Corolla *5 in. long. Stamens 2; anther-cells nearly at equal 
height. Hab. Rare and little known in forests, Perak, Ulu Selama 
(Scortechini). 
Excluded Species 
Leda andrographioides Clarke, l.c. 692. Singapore (Ridley) is 
Jusiicia vasculosa Wall. 
31 . POLYTREMA, Clarke 
Slender, more or less creeping and ascending herb. Leaves 
opposite, equal or unequal. Cymes axillary, small, few-flowered. 
