178 Materials for a Flora of the Malayan Peninsula. 



coll.) ; Province Wellesley : Bukit Jura (Kidley) ; Perak : (Scortechini) 

 Gunong Malacca (King's coll. 7135) ; Kedah : Gunong Jerai (Ridley). 



The commonest species in the south of the peninsula in woods. 

 Native name, " Rotan Sumang." It is not valued for any purpose. 

 I am quite unable to distinguish D. intermedins Mart. Calamus inter- 

 medins Griff, though Beccari keeps it separate and describes a variety 

 D. intermedins var. iiudinervis. Griffith, the original describer of it, was 

 dubious as to its being distinct, and the two very slightly different 

 forms pass readily into each other. Both grow side by side in the 

 gradens and garden jungle, and as usual in this group there is a great 

 variation in the size of spathe, dimensions of spines and bristleness of 

 the leaves according to the age of the plant and its habitat. 



8. D. CARCHARODON, el. sp. Unisexual, leaf large, petiole 8 inches 

 long, somewhat swollen at the base armed with scattered flat grey 

 thorns not very close at base, above with short flat broad spines ; 

 rachis with strong claws in fours ; flagellum 3 feet long, claws in groups 

 nearly encircling it, 7 or 8 in a group ; leaflets linear acuminate 10 inches 

 long ^ inch wide close equidistant, bristly on all the ribs and tip. 

 Spathe with a narrow peduncle 6 inches long, body swollen 7 inches 

 long, beak 12 inches flat narrow, spines numerous flat grey broad, somo 

 very slender at base and apex, a few spines on the beak, 2nd spathe 

 inches long, beak 2-3 inches, spines few scattered on the back, upper 

 spathes about 6, hardly or not beaked, unarmed. Male inflorescence 

 short and dense. Calyx broad and short cup-shaped ribbed obscurely 

 toothed. Corolla lobes hardly twice as long oblong obtuse ribbed. 

 Female inflorescence, flowers larger more ribbed, corolla lobes shorter 

 in proportion. Fruit globose, shining, sales shining cinnamon brown, 

 much longer than broad, margins pale, apices deep brown blunt. 



Singapore: Chan Chu Rang (Ridley 4269, 6279), Chua Chu Kang, 

 Bukit Timah, Selangor Batu Tiga (Ridley 11983). Native name Rotan 

 S'pat. 



9. D. HYGROPHILUS, Mart. Hist. Nat. Palm. III. 204, t. 177. 11. 

 A tall stout rattan, stem 2 inches through. Leaves large, petiole very 

 stout back rounded, upper face flat, covered at tho base with numerous 

 short flat \ inch long triangular spines, numerous also on the edge 

 and mixed with short thorns, mouth of sheath oblique, a slightly raised 

 gibbous ridge at base of petiole, the whole sheath dark coloured covered 

 with short triangular flat spines erect or appressed to the stem in 

 undulating rows ; rachis very stout armed with recurved thorns along 

 the edge in pairs ; leaflets linear acuminate alternate or subopposito 

 12 inches long i inch wide, narrowed at the base, bristles short scanty 

 on the nerves of tho back ; flagellum stout long with almost complete 

 whorls of strong hooks. Spathe and spadix 18 inches long fusiform 

 gradually narrowed at both ends. Outer spathe densely covered with 

 fiat thin spines, pale at the base grey at tho tip, \ inch long arranged 



