Materials for a Flora of the Malayan Peninsula. 185 



Singapore: N. Selitar, Bukit Timah (Ridley) ; Muar: (Fox 11297) ; 

 Selangor : Ginting Bidai (Ridley 7092 Pahang Track ; Perak : Goping 

 (Kunstler 576) ; Larut Hills : (Ridley, King's Coll. 2735) ; Bujong 

 Malacca (Ridley 9811); Penang : (Lewis); Kedah: GunongJerai (Rid- 

 ley). Endemic. Native names, " Rotan S'grah," " Rotan Dadok." 



22. D. elongatus, Bl. Rumphia III. p. 16. Leaf large about 4 

 feet long, rachis trigonous hooks solitary or in pairs ; petiole with strong 

 scattered flat pale spines along the edges and recurved ones on the 

 back ; leaflets linear acuminate 12 inches long f inch across equidis- 

 tant setulose on nerves and tip. Flagellum slender 2 feet long, hooks 

 small in clumps of 5 and 6. Peduncle about 6 inches long and very 

 stout armed with slender acute spines on the edge, some nearly ^ an 

 inch long surrounded with shorter ones in circles. Lower spathe persis- 

 tent coriaceous oblanceolate 4 inches long, the back armed with slender 

 spines like those on the peduncle. Upper sheaths thinner, spiny. 

 Male spadix not seen. Female spadix stout a foot or more long, branch- 

 es few and stout, branchlets angled scurfy. Spathellules tubular 

 with a saucer-shaped top acute. Flowers distinctly pedicelled, pedicel 

 thick. Calyx cup-shaped, ribbed. Corolla lobes more than twice as 

 long, lanceate. Styles stout. Fruit i inch long, turbinate, scales rhom- 

 boid, as broad as long in about 10 rows, cinnamon-brown with paler 

 edges. Seed flattened sub-globose with deep rumination pits. D. Kunst- 

 leri, Becc. Fl. Brit. Ind. VI. 469. 



Singapore : Chan Chu Kang, North Selitar, etc. (Ridley 1667) ; 

 Pahang: Kwala Tebiau (Ridley); Selangor: Bukit Kutu (Ridley); 

 Perak : Ulu Bubong (King's Coll. 10204), (Scortechini 652), Thaiping 

 Hills (Ridley) ; Penang Hill : (Curtis 2150, Ridley 10343) ; Balik Pulau 

 (Ridley 7905) ; Kedah : Gunong Jerai (Ridley). Distrib. Borneo. 



Near D. hystrix but with quite different fruit and a peculiar thorny 

 peduncle. Identified by Dr. Beccari. 



23. D. PERIACANTHUS, Miq. Fl. Ind. Bat. III. 593. Stem about 

 40 feet long, 1 inch through covered with raised rings in pairs of bris- 

 tles and long thorns, the upper ring deflexed, the lower one erect. 

 Leaf about 5 feet or more long, flagelliferous, petiole over a foot long 

 armed with long erect thorns 3 inches long, pale arranged in half whorls 

 and with half whorls of black bristles ; rachis armed with distant groups 

 of hooks ; flagellum rather slender, leaflets rather unequally distant 

 linear broad 12 inches long f inch wide, bristly on back, edges and tips. 

 Male spadix over 2 feet long, peduncle rather slender) 18 inches with 

 tufts of bristly spines along the edge. Spathes several thinly coriace- 

 ous, the lowest 18 inches or less long 1 inch wide, covered with long 

 brown or black bristles in tufts, lanceolate, the upper ones thin, smooth 

 unarmed. Branches of spadix crowded rather thick numerous. Spa- 

 thels tubular scurfy. Spikes alternate 1 inch long. Flowers closely 

 distichous. Spathellules flat, saucer-shaped. Bracts cup-shaped, rib- 



