30 ANNALS OF THE BOYAL BOTANIC GARDEN, CALCUTTA. 
Leaflets closely set, bearing long bristles on 3 nerves above, 
margins closely spinulous. Outer spathe armed with large flat 
spines often confluent by their bases and almost pectinate. Seed 
orbicular, flattened. 
70, D. Kurzianus. 
Leaflets very closely set, rather large (50—52 cm. long, 2—5 cm. 
broad); first and second spathe armed on tbe body and on the 
beak almost to the apex with very long narrowly laminar or 
sub-setiform spines. 
7]. D. malaccensis. 
y. Leaflets very narrow, 15—17 mm, in width at most, very regularly and 
very closely set (about 10—15 mm. apart). 
l. Onter spathe armed with short rigid triangular spines. 
12. D. hygrophylus. 
2. Outer spathe armed with broad, elongated, flat, elastic, often laciniate 
spines, 
§ Leaves of the upper and fertile part of the plant almost without 
a petiolar part. Spathes with deeply laciniate spines. Scales 
of the fruit straw coloured. 
73. D. stenophyllus. 
$8 Leaves of the upper and fertile part of the plant with a 
more or less elongate petiole. 
* Fruit globular but conically beaked; its scales of a 
uniform cinnamon-brown colour. 
14. D. fissus. 
** Fruit scales usually with a darker or discoloured margin and 
a black apex and often with a light speck behind the 
apex. Leaflets very narrow, very closely set at a very 
Me wide angle. 
Outer spathe armed with broadly laminar, strongly laciniate 
spines. Second spathe unarmed. 
15. D. Binnendijkii, 
Outer spathe rather gradually narrowing into the beak, 
armed with long laminar usually not laciniate spines 
Second spathe unarmed or néarly so.  Fruit-scales not 
spotted at the apex. — 
76. D. angustifolius. 
Outer spathe as in the preceding. Second spathe rather 
densely spinous. Fruit-scales blackish at the apex with 
de m an intra-marginal light spot. 
E o: 17. | D. trichrous. 
