138 | ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA, [D. Hystrix 
Not essentially differing from the specimens coming from the Malay Peninsula 
are some with fruit and leaves, collected by  Teijsmann at Rio; these have an 
oblong fruit, 18-20 mm. long, including the perianth, and 11 mm. broad, and have 
. the spikelets at times branched, and each branchlet with 3-5 flowers. 
I consider as belonging to D. Hysíriz some fruits of a Sumatran  Daemonorops 
which I have seen in the Herbaria of Leyden and Utrecht, but especially a 
fruiting spadix collected by Teijsmann at Muara dua in the Residency of Palembang 
(No. 3592 Herb. Hort. Bot. Bogor.. This spadix, however, has the peduncular part 
densely prickly all round as in D. oblongus, 
Oxservations.—According to Griffith, D. Hystriv is an extensive climber. Sir 
George King’s collector assigns 3°5-5 m. to the plants from which he had gathered 
his Herbarium specimens. Apparently the plants of D. Hystriz begin to flower when 
still very young and have a short stem, but this may acquire with time a great 
length. It is however a very polymorphic species, and varies not only as to the 
general size of the plant, but also as to the degree of spinescence of the leaf-sheaths, 
petioles and spathes, and also as to the dimensions of and relation between the 
length and breadth of the fruit, D. Hysíriz is very closely related to D. oblongus 
and JD. Korthalsii, the first being its representative form in Java, and the second in 
Borneo. In D. Aystriz the spines round the mouth of the leaf-sheaths are longer, 
broader, and usually more numerous than in D. oblongus in which the peduncular 
part of the spadix is a good deal more densely armed, and the spines are more slender 
more closely set and oftener confluent than in D. Hysiriz; the leaflets of JD. oblongus 
have on the under surface 3-5 rather remotely bristly nerves, while in D. .Hysíriz the 
. B5 nerves are covered with a continuous line of very minute and closely set bristles ; 
further the fruit of D. Hystriz is never so elongate and cylindraceous as that 
of D. oblongus. For the differences with D. Korthalsii see the observations on that 
species, and regarding C. hirsutus see the observations on C. oblongus. 
What Griffith has written at p. 81 of his large work belongs to D. Aystriz to 
the heading that begins: “The following additional particulars,” etc., which particu- 
lars are referable to a species with fascicled leaflets, which I have been unable to 
identify. 
Pirate 55.—Daemonorops Hystrix Mari. (Forma typica) The upper part of a 
leaf-sheath and base of the petiole with a young female spadix in situ; two very 
young female spadices; an entire-panicle with full grown fruits; the upper end of a 
leaf (undersurface); seeds, from raphal and anti-raphal side; seed longitudinally cut 
through the chalazal fovea. and the embryo. From specimens in Herb, Beccari 
collected by Ridley in Singapore. 
Darmonorops HysrRIx var. Minox Bece. in Hook. f. Fl. Brit. Ind. vi, 469. 
Calamus Hystriz var. Griff. l c. 
DescRiPTION.— Smaller, 1-3 m, high.  Sheathed stem 1-2 cm. in diameter. Leaves 
60-70 cm. in length including the petiole and cirrus; leaflets 14-15 cm. long, 9-10 
