Dcvmonorops.] cLVi. palmace^ 35 
so bulky and spiny that collectors are apt to bring home mere scraps of the 
plant which are utterly unreliable. They can only be properly studied in 
the forests. 
§ I. Cymbospaihac. Spadix fusiform, the outer spathe spiny covering it 
and all the upper spathes, and completely falling off during flowering. 
Spadices short compact unisexual, rarely bisexual. 
Spadix bisexual; male and female flowers in pairs, 
scandent. 
Fruit yellow, globose . . . . . (i) D. angustifolius 
Fruit brown, globose . . . . . (2) D, Scortechinii 
Fruit tawny, ovoid elliptical . . . . (3) D. Sepal 
Spadices unisexual. Plants with no climbing 
stems, forming a bush. 
Outer spathe densely covered with hair-like 
spines. (4) D. calicarpus 
Outer spathe with few scattered spines . . (5) D. microthamnus 
Scandent stems long. Outer spathe completely 
covering the others. 
Outer spathe abruptly long-beaked, spines 
slender, black acicular; spadix in 
fruit elongate. 
Stems short; spathe under i ft. long, beak 
longer than body . . . . (6) D. monticolus 
Stems tall, spathe over i ft. long, beak shorter (7) D, Lewisianus 
Spathe fusiform; peduncle long, spines very 
slender, greenish . . . . (8) D. aciculatus 
Spathe large (when adult), spines scattered, 
dagger-shaped .... (9) D. grandis 
Spines broad grey, beak i ft. long . • (10) D. carcharodon 
Outer spathe gradually tapering at both ends (n) D. bygrophilas 
Spadix in fruit very short and dense, thorns 
and stem yellow . . . . (12) D. congestus 
Dubious. D. pseudosepal Becc., D. imbelHs Becc. 
Piptospatha. Outer spathe not covering the others; panicle diffuse. 
§2. 
large. 
I. ResimfertB. Fruit exuding dragon's blood. 
Stem unarmed slender with low transverse ridges (13) D. 
Stem strongly spiny, stout. 
Leaflets in distant pairs, broad . . . (14) D. 
Leaflets equidistant ..... (15) D. 
II. Non-resinifer(V. Fruit not resinous. 
Stems with few scattered spines; peduncle long, 
thorny ..... 
Stems very thorny with strong spines at mouth 
of sheath. 
Leaflets equidistant; fruit oblong 
Peduncle spiny short; leaflets linear. 
Spines irregularly scattered on sheaths. 
Dwarf plant 2 to 3 ft. tall. 
Branches elongate; fruit brown, not 
beaked ..... 
Branches very short; fruit yellow 
brown; scales edged black . . 
Tall plant; fruit yellow edges, erose beaked (20) D. 
Spines in short transverse crests on sheaths; 
tall plant . . . . . (21) D. 
micracanthus 
didymophyllus 
propin Quus 
(16} D, leptopus 
(17) D. hystrix 
(18) D. Kunstleri 
(19) 
D. 
scapigerus 
elongatus 
vagans 
2^ 
