174 Materials for a Flora of the Malayan Peninsula. 



Peduncle not ancipitious armed ... 21. D. geniculatus. 



Fruit turbinate •• • ••• 22. D. elongatus. 



Stems with thick collars at the internodes 



covered with black bristles. 

 Male flowers in short spikes 1 crowded 



distichous ••• ••• ... ... 23. D. periacanthus. 



Male flowers in long lax spikes ... 24. D. verticillaris. 



1. D. ANGUSTIFOLIUS, Mart. Hist. Nat. Palm. III. 329. Stem 

 stout about 30 feet long -l| inch through, greenish yellow covered 

 with purple scurf, spines black crowded 2 inches long, those round 

 the mouth an inch longer, sheath not swollen or wrinkled. Leaves 

 12-14 feet long, petiole yellowish with purple red scurf, back rounded, 

 channelled above, armed with long black spines scattered over it 

 especially on the edges, rachis green-purple scurfy with distant spines 

 i inch long on the back ; leaflets very close narrow linear acuminate 13 

 inches long f inch wide, dark or light green, bristles rather long on the 

 two lateral nerves above and the edges, a few on the midrib and tip 

 above, numerous and close beneath. Spadices bisexual peduncled. 

 Outer spathe canoe-shaped 6 inches long, grey dotted with red, with 

 numerous flat black spines with pale bases along the keels and in trans- 

 verse rows, beak 4 inches long, 2nd spathe narrower with a few small 

 black spines on the keels, beak 3 inches, inner spathes papery unarmed. 

 SpadixdenseG inches long. Flowers smaller than in D. grandis I inch 

 long, one male and our female together, on each branchlet. Mule, 

 calyx very short cup-shaped ribbed brown. Petals three times as long, 

 linear oblong brown ribbed. Stamens 6, filaments short with a broad 

 fleshy base narrowed upwards, bases connate. Pistillode small. 

 Female flower. Calyx as in male, petals shorter. Stamens (apparently 

 fertile) 3. Filaments flatter and thinner, styles thick, fruit globose £ inch 

 long, scales about 8 rows, light chestnut with silvery edges, apex blunt 

 dark brown, grooved | inch across. Seed flattened black, albumen 

 densely ruminate. Miq. Fl. Ind. Bat. III. 89. Hook. fil. I.e. 464. D. 

 Sepal Becc. Fl. Brit. Ind. VI. 465. Calamus augustifolius Griff. Calc. 

 Journ. Nat. Hist. V. 89. Palm. Brit. India 95. t. 213 A. B. 



Singapore : Garden Jungle (Ridley 5123) ; Malacca : (Griffith) ; 

 .Tohor : Sungei Tebrau ; Selangor : Dusun Tua (Cantley) ; Negri Sembilan : 

 Tampin Hill ; Perak : (King's Coll. 4133) Gunong Tambang (Scorte- 

 chini) ; Ponang : Balik Pulau (Ridley 7900). Endemic. Native name 

 " Rotan Minyak." 



The types of Boccari's D. Sepal are very poor specimens but are 

 almost certainly this species. 



2. D. CALICAHPUS, Mart. Hist. Nat. Palm. III. 326, t. 1766, VI. 

 A tufted palm emitting no climbing stems. Leaves numerous crowded 

 about 6 or 8 feet long sheath strongly armed with close set grey spines 

 l£ inch long; petiole flattened with greyish spines 1 inch long or less, 



