68 
CLVI. PALMACE^. 
\Rorthalsia. 
Sheaths unarmed; leaflets narrow obcuneate. 
Flowers *25 in. long; spadix few, branched; 
stem '2 in. through . , . . (8) K. tenuissima 
Flowers -i in. long ; spadix many, branched ; 
stem *4 in. through . . . . (9) K. polystachya 
Stems moderately stout; leaves red tomentose 
on back. 
Leaflets narrow elongate, 3 in. long, oblan- 
ceolate . . . . . . (lo) K. flagellaris 
Leaflets linear-oblong, 12 to 18 in. long . • (n) K. rubiginosa 
(1) K. echinometra Becc. Males, ii. 66. t. 7; Ridl. Mat. ii. 215. 
Stem 50 to 100 ft. long, -5 in. through. Leaves 8 to 10 ft. long, 
Ochrea inflated, oblong, 4 in. long, armed with black needle-like 
spines 3 in. long; leaflets 26, linear-lanceolate acuminate, i ft. 
long, I in. wide, backs white. Spadix large, branches 6 in. long. 
Spikes 4 to 6 in. long, *25 in. thick. Fruit oblong, brown, -5 in. 
long. .Scales rhomboid lacerate. Hub. Damp places in forests, 
rarely flowering. Singapore, Bukit Timah; Chan Chu Kang, 
Negri Sembilan, Seremban (Moorhouse); Bukit Kandang (Cantley). 
Perak, Thaiping Hills to 3200 ft. altitude. Distrih. Borneo. Native 
name: Rotan Hudang. 
(2) K. scaphigera Mart, Hist. Nat. Palm. iii. 211; Ridl. Mat. 
ii. 216; Becc. Males, ii. 67, t. 5. Calamosagus scaphigera Griff. 
Palms of Brit. Ind. 30, t. 184A. 
Stems 30 to 60 ft. long, -5 in. through or less. Ochrea swollen, 
elliptic, 1-5 to3in. long. Leaves 3 ft. long; flagellum very .slender; 
leaflets 12, obcuneate, whitish beneath, 6 to 7 in. long, 2 in. wide. 
Spadix I ft. long; branches few, about 3; spikes 8 in. long, *25 in. 
through. Flowers orange. Fruit oblong, -5 in. long, beaked, yellow, 
scales as broad as long. Hab. Common in forests. Singapore, 
Garden Jungle; Bukit Timah. Johor, Ulu Kahang (Holttum). 
Malacca (Griffith); Sungei Hudang. Sungei Ujong (Cantley); 
Perak, Asam Kumbang (Wray); Thaiping Hills (Kunstler). Native 
name: Rotan Semut. 
Ants live in the swollen ochreae. 
(3) K. Scortechinii Becc. in Hook. fd. F.B.I. vi. 475. 
Ochrea elongate, inflated, armed with short scattered spines, 
with sheath 6 to 8 in. long; leaflets linear or oblanceolate cuneate, 
14 to 16 in. by i’5 to 2 in., white beneath, acute, toothed. Hab. 
Perak (Scortechini). 
This plant is probably a form of K. scaphigera. I have not seen it. 
(4) K. Machadonis Ridl. Mat. ii. 216. 
Stem slender, ochrea cylindric, 1-5 in. long, thorny; petioles 
I ft. long, very thorny, thorns short; leaflets remote, 12, obcuneate 
rhomboid, bidentate, with a long point 6 in. long, 3 in. wide. Hah. 
Perak, Kamuning (Machado). 
I have only seen a young plant but it seems very distinct from K. scaphi¬ 
gera. 
