ANNALS OF THE ilOTAL BOTANIC GARDEN, CALCUTTA,
( a ) Mouth of t h e l e a f - s h e a t h s s m o o t h , or a r m e d w i t h s p i n e s Vixriously d i r e c t e d.
* Fruit resiniferous.
t Leaf-sheaths armed with feeble, acicular, deciiluoua spines. Dragonblood
secretion very abundant.
Leaf-siieaths armed with slender feeble seriate spines. Leaflets
liueav-lanceolate, 30 cm. long, 2 cm. broad, bristly on 3
nerves on both surfaces. Fruit ovoid, shortly beaked or
mammiliate. Seed somewhat flattened, ovoid.
38. D. Draco.
Leaf-sheaths armed with feeble, seiiate, easily deciduous spines.
Leaflets very narrow (7—9 mm. in width\ smooth above,
and with 3 bristly nerves beneath.
39. D. Dfaconcellus.
Leaf-sheaths armed with numerous, very slender, often seriate,
easily deciduous spiculae, resting on bulbous permanent bases.
Leaflets linear-lanceolate, finely and closely ciliate on 3
nerves on both surfacea.
40. D. micracanthus.
t t Leaf-sheaths armed with rather strong permanent spines, of which
some at least are flat and elongate.
§ Female epikelets with bifarious flowers.
© Leoflets equidistant or nearly so, never geminate.
+ Scandent.
Leaflets with 3 bristly sjjinulous nerve» on the upper
surface and the mid-costa alone bristly beneath.
Fruit strongly resiniferous, ovoid-pyriform or with
a broad base and a more Or less conical apex.
Seed conical.
47. D. propinquus.
Leaf-sheaths with 3 bristly nerves on the upper
surface. Fruit spherical, comparatively large,
sparingly resiniferoua.
42. D. ruber.
Leaflets not bristly on the upper surface, or only
very slightly on the mid-costa. Fruit broadly
ovoid with a broad base, slightly resiniferous.
43. D. maitanensis.
BECCAKI. THE SPECIES OP DAE.MONOKOPS. 35
+ + Not scandent.
Fruit very slightly resiniferous. Leaflets sub-unequidistant,
but not regularly geminate.
44. D. gracilipes.
©O Leaflets distinctly grouped or geminate.
Outer spathe elongate-fusiform, almost entirely enclosing
the inner ones. Fruit- ovoid with a broad base
abundantly resiniferous.
45. D. Mot/eyi.
Spathes deeply and broadly spoon-shaped, each slightly
protruding beyond that immediately below. Fruit
broadly ovoid, slightly resiniferous.
46. D. didymophyllus.
§ § Female spikelets with spirally set flowers.
Leaflets equidistant, linear, with bristles on 3 nerves above
and only on the mid-costa beneath. Female flowers
with a very slender involucrophorum. (A very peculiar
species of doubtful position, its fruit being unknownj
47. D. sparsifiorus.
' Fruit not resiniferous.
Leaf-sheaths woody, very hard, armed with robust rather short spines.
Fruit small, ovoid-elliptical with a round base,
48. D. /eptopus.
Leaf-sheaths armed with thinly laminar, sub-foliaccous, laciniate spines.
Fruit narrowly elliptical, acute at both ends.
49. D. oxycarpus.
more or less armed with flat
(i) Mouth of the leaf-sheaths
Fruit never resiniferous.
* Fruit ovoid or oblong.
erect spines.
t Stem short, erect.
Spadix a small dense panicle on a slender, very long, peduncular part.
50. D. microstachys.
+ + Stem scandent.
§ Fruit elongate ovoid, or globular-ovoid.
Leaflets equidistant, closely ciliate on 5 nerves beneath. Scales
in 15 series.
57. D. Hystrix.
Asn. Box. Bot. G-íkd., Calcutta, Yol, SIL
I