CVI. ACANTHACE^E. 
Polytrema.] 
607 
(4) P. sequale Ridl. 
Slender, creeping, ascending, wiry herb, branched, glabrous, 
1 ft. tall. Leaves opposite, equal elliptic acuminate or ovate 
acuminate, base narrowed, blunt; nerves 6 pairs; 2 to 3 in. long, 
1 to 1-5 in. wide; petioles -i in. long. Flowers solitary or 2 on 
a short peduncle -2 in. long or less. Sepals linear-acuminate, 
glabrous, -25 to -4 in. long. Corolla -5 in. long, white with a yellow 
patch on the lower lip. Capsule *5 in. long. Seeds 4, flat orbicular 
pustulate. Hab. Forests, Negri Sembilan, Bukit Tangga. Selan¬ 
gor, Batu Caves. Pahang, Gunong Senyum (Evans). 
var. minor. Whole plant 6 in. tall. Leaves elliptic-lanceolate, 
1*5 in. long, -5 in. wide; petioles -3 in. long. Apparently a dwarf 
form. Hab. Rahman, Bukit Besar (Gwynne-Vaughan). 
(5) P. repens Ridl. Journ. Roy. As. Soc. S. Br. 57, p. 86. 
Prostrate creeping herb throwing up erect stems 3 in. tall; 
stems slender pubescent, internodes 2 in. long. Leaves equal, 
ovate, sub-acute, base round, 1 in. long, 75 in. wide, pale beneath; 
petioles 75 in. long. Cymes terminal on the branches, 1*5 in. 
long, pubescent. Bracts linear subulate, -12 in. long, pubescent. 
Sepals linear acuminate, hairy. Corolla -5 in. long, white, tube 
trumpet shaped, dilate at base, pubescent. Hub. In hill woods, 
local. Perak, Ulu Temengoh (Ridley). 
(6) P. cupreum Ridl. Journ. Roy. As. Soc. S. Br. 50, p. 124. 
Small, creeping plant with elliptic rounded or ovate leaves, 
equal, brown, glabrous or sub-pubescent beneath, -5 to 1 in. long 
and as wide; petioles -5 in. long. Flowers 3 or 4 on a short ter¬ 
minal cyme (often cleistogamous). Sepals linear acuminate, 
pubescent, brown. Corolla -5 in. long, pale rose with a yellow 
patch on the lower lip; lobes oblong truncate. Anther-cells 
oblong acute, parallel. Ovary pubescent. Capsule -5 in. long, 
4-seeded. Hab. Perak, Telok Pinang near Ipoh (Ridley). A rare 
and pretty plant. 
32 . SFHINCTACANTHUS, Benth. 
Shrubs. Leaves broad, membranous. Flowers small in spikes 
or spike-like panicles, axillary and pseudo-terminal. Bracts 
small. Calyx 5-fid nearly or quite to base; lobes subulate acumin¬ 
ate. Corolla-tube thick (or ovoid, tubular constrict at mouth); 
limb 2-lipped, upper lip erect, 2-lobed, lower as long or slightly 
longer, 3-lobed. Stamens 2, fixed to the mouth of tube, shorter 
than upper lobe. Anthers oblong; cells 2, equal, parallel muticous. 
Stvle filiform; ovules 2 in a cell. Capsule oblong clavate, base 
solid, retinacula strong. Seed orbicular coarsely pustulate. 
Species 4 or 5, India, Cochin China, Malay Peninsula, China. 
(1) S. malayanus Ridl. Journ. Roy. As. Soc. S. Br. 86, p. 306. 
Shrub 2 ft. tall; stems pale fawn-colour. Leaves lanceolate 
acuminate, glabrous above, sparsely hairy beneath especially on 
