40 
CLVI. PALMACE^. 
\pcBmonorops. 
(10) D. carcharodon Ridl. Mat, ii, 178. 
Plant unisexual. Stems tall stout. Leaves large; petioles 
8 in. long, base swollen with scattered grey spines; flagellum 3 ft. 
long, hooks in sevens or eights; leaflets linear, 10 in. long, *5 in. 
wide, bristly on ribs and tip. Peduncle narrow, 6 in. long. Spathe 
7 in, long, beak i ft. long, flat narrow, spines numerous, grey flat 
broad. Male spadix short dense. Calyx broad cup-shaped, 
obscurely toothed. Fruit globose, scales cinnamon brown, longer 
than broad, tips deep brown, edges pale. Hah. Damp low-lying 
forest, not common, Singapore, Chan Chu Kang; Chua Chu Kang. 
Selangor, Batu Tiga. Native name : Rotan S’pat. 
This is referred erroneously by Beccari to D. angustifolius. 
(11) D. hygrophilus Mart. Hist. Nat. Palm. iii. 204, t. 177; 
Becc. Ann. Bot. Card. Calc. xii. 62, pi. 13. Calamus hygropliilus 
Griff. Palms of Brit, Ind. 96, t. 213c. 
Tall rattan 2 in. through. Leaves large; petiole stout, sheath 
dark coloured, covered with flat triangular spines; leaflets linear, 
1 ft long, ‘5 in. wide, base narrowed, bristles few; flagellum 
stout, hooks in almost complete whorls. Spathe fusiform, 18 in. 
long, gradually narrowed to both ends, densely covered with flat 
thin spines, grey, *5 in. long, in short bars. IVIale spadix red, 
scurfy, large. Hah. Damp thickets and river banks. Malacca 
(Griffith); Bukit Sadanen (Derry). Selangor, Batang Berjuntai 
and Petaling (Ridley), Perak (Scortechini), Gunong Hijau 4300 ft. 
altitude (Burkill). Native names: Rotan Ayer; Rotan Chichi 
Landak. 
(12) D. congestus Ridl. Mat. ii. 179. 
Stem very stout, 1-5 in. through, bright yellow. Leaves very 
long; petioles stout, gibbous at base, with strong flat spines; leaf¬ 
lets distant, 18 in. long, 1*5 in. wide, linear acuminate, bristly at 
tip; flagellum long with semicircular clusters of black hooks. 
Spadix in fruit 2 in. long, dense compact. Fruit cylindric, dark 
brown, scales raised, deep grooved, edges scarioiis. Hah. Singapore, 
Stagmount (Ridle}^) (extinct here and not seen elsewhere). 
Beccari considered this to be a form of D. leptopus Mart., but it is very 
distinct. 
Dubious Species. 
D. PSEUDO-SEPAL Becc. in Hook. fit. F.B.L vi. 465; Ann. Bot. 
Gard. Calc. l.c. p. 79, pi. 25. Stem 12 to 15 ft. long, 75 in. 
thick. Leaves 3 to 4 ft. long; leaflets distant, few, 7 in. long, 
•5 in. wide, narrowed to base, acuminate; petioles i ft. 
long, thorns on back stout, on edges very small, spines on 
sheath long, flat, i in. long. Spadix fruiting short slender, 
3 in. long. Fruit globose, 75 in. through, yellow, scales in 
5 or 6 rows, as long as broad, grooved. Hah. Perak, Batang 
Padang district (Kunstler). 
Kare and iirsufficiently known. 
