áNNALS OP THE EOrAL BOTANIC GARDEN, CALCUTTA.
ID. acanthobolus
The specimen collected by me bears only an iinopened male spadis and
Lobb'a has a spadix with very young fruit. The two spadices on first inspection
appear quite different; but the outermost spathes of both are quite identical, and
moreover the leaf which accompanies Lobb's specimen agrees in every particular
with that of the male plant.
In the Calcutta Herbarium, the parts belonging to Daemonorops cristaius and
Calamus fermgineus, both collected by Lobb in Borneo, had bean mixed tocrether,
and the spadix of one was glued on the same sheet with the leaves of the°other'
and vice versa. On account of this shifting of parts, I haye described in the
Records of the Botanical Survey of I odia a Daemomrops divevsispinus, which must be
eliminated, being estabUshed upon the female spadix of Baemonorops crisiatus aud th&
leaves of Calamus ferrugineus. Further material forwarded from Calcutta, after the
publication of my paper on Calamus in the "Records," has enabled me to recognise
the error,
PLATE 83.—Daemonorops cristatus Bece. Portion of the sheathed stem with an
entire leaf and a male spadix before the anthesisj from P. B. tlo. 1925 in Herb.
Beccari.
PLATE 84.—Daemonorops cristatus Beco. Base of a leaf and; upper portion of a
leaf-sheath; au entire spadix with very youug fruit; upper end of a leaf. This is
the spadix described by me (Rec. Bot. Surv. Ind. ii, 229; as that of D.
diversisj)inu3, from a specimen collected by Lobb in Borneo (Herb. Calcutt,).
77. DAEMONOEOPS ACANTHOBOLUS Becc. in Rec. Bot. Surv. Ind. ii, 228.
D. ffemculaius var. sphaeroaarpus Becc.I in Rec. Bot. Surv. Ind. ii, 228.
D. accedem (non Bl.) Miq. Prod. Fl. Sum., p. 256.
DESCEHTIOS.—Not scandent. Stem erect, short. Leaf-sheaths 2-5 cm. in diameter,
rusty-furfuraceous, not gibbous above, very obliquely truncate at the mouth, armed
and ornamented, especially ou the upper part of the dorsum, with a few
sub-parallelj oblique, semi-circular, spiniferous, deflexed, membranous crests, formed by
the confluent bases of a few, very long (as much as 6-7 cm.) light coloured, flat,
narrow, veiy acuminate spines, and by numerous, 8m;ill, brown spiculao filling the
spaces between; the mouth obliquely truncate, setigerous on the ventral side. Ocrea
inconspicuous, glabrous. Laavei elongate, l'o-l'7 m. long in the pinniferous
p a r t ; very shortly cirriferous or terminating in gradually smaller and abortive
leaflets; petiole at first fugaciously furfuraceous, later almost polished, robust
and elongate, 50-70 cm. loQg} 12—14 mm. broad, concave on the upper
surface at its base only, then plano-convex, and from the middle upwards
unequally biconvex, i.e., more convex on the lower than on the upper
surface, armed on its lower part almost regularly, and at rather short
intervals, on the not very acute edges, with extraordinarily long, straight,
very rigid or woody, very acumiunate, erecto-patent, spiky spines, each of
these often accompanied at their bases by 1-2 smaller and divergent spines;
higher up the spines are shorter, horizontal or deñexed; the upper surface and the
dorsum are smooth; rachis in its lower portion armed, beneath, on the sides, and
D. acantiioboius] BJICRALIL. THE SPECIES OF DAEMO:^'OEOPS. 193
along the centre, with small solitary claws, which become S-nate higher up and
occasionally â-nate on the sub-cirriform upper end; on the upper surface the racliis
is smooth all over; in its lower portion it is convex, and has broadly grooved
side-facoB wherein the leaflets are inserted, »bile higher up comes an acute, salient angle
and flat or slightly concave side-faces; leailtls 'very nnmerons, equidistant, 2-5-3 cm.
apart, rather firmly papyiaoeons, green and almost glossy above, paler beneath,
enstform or very narrowly lanceolate, usually broadest below their middle, and thence
tapering towards a rather acute base, gradually acuminate above to a finely subulate
and, at the apex, bristly tip; on the upper surface the mid-costa is very slender
but very sharp, and has a few bristles only towards the apex. The secondary nerves
are smooth and very slender, so that the npper surface is not or only very
md.,ti„ctly 3.,:ostukte; on the under surface the mid-costa is very minutely and
very closely cihate, and one slender nerve on each side of it is also occasionally
and sparingly br.stly-spnmlons; transverse veinlets very numerous, continuous, and
very sharp on both surfaces; margins smooth near their base, .preadingiy ciliated
from the middle upwards, the lower margin on the upper surface very minuteiv
iMtod when seen under a lens; the intermediate leaflets are 3,5-30 cm. long, and
17-20 mm. broad 40-35 cm. lonç, including a pedicellar part 20
cm. in length, slender, flattened, softly furfuraceous, slightly broadenii,.- in the
upper part, armed ou the margins with slender spines, which are deflexed in
preflo»t,en, but afterwards are ascendent; primary spathos concave, narrowly elliptical
cymhform, acuminate, gradually tapering towards the base, firmly papyracLas 'of ,
ha»l-nut-brown colour, glabrous and finely striate internally, furfuraceous ex ernallv
ano mere or less furnished on the back with ligh.-ooloured, flabby, transversely
seriate bristles; the outermost spathe is longer and naiTower than the inner
and each of the latter gradually protrudes beyond that immediately below i f the
flowering panicle when not quite free from the spathe. is slender aud strict
¡«tar the partial inflorescences are spreading, but they are afl scantily floweredpartial
infloresccnces about 6 iu :number, the lower are the largest, 10-12 cm. 1„„;
and are divided mte 3-4 branchlets, which carry only 5-6 spikelets in all
secondary spa.hes small, br.cte.form, prolonged at one side into a broad tria,^g.l„
„embranous pom ; t o lowest spikelets are about ,5 mm. long, have 5 - r f l o™
m all, and are densely covered with a soft eottouy-furfuraceous rusty scurf 7 e
axes are thickish, zig-mg sinuous ; spatiiels very shortly wi.lelv and . . i • „
infundibular produced at one side to ' a broad, ^ r i a n g ! L , " b S i , r io r T u r u ™ ' e
cupular, rather deep entire, or obsoletely posticously bideutate, ou a' level r t e
involucrophorum or .slightly shorter. > „ „ oblong, comparatively largo 7-8
mm. long, 2-5-3 mm .„ diameter, obsole.ely trigonous, bluutish, often sligb-iy curved
ho calyx campanulate shortly and broadly 3-toothed, faiutly striiely-veined
the eorolta two aud a half times as long as the calyx, smooth exterùrUy ftLfc
more or less persistently rusty-f.rfuraceous, erect, rigid, f e r m L Î a r a ti
elongate, narrowly ovo.d, acuminate panicle, borne on a strtmr v d î ,
two-edged, quite unarmed, pedunc.ilar part ; one s p e ^ e n ha thi, f ',
35 cm. long, I cm. broad at the uppiîr eid, . . . d ' ' r e ; h . f L : ' ' : t t le b T s f ^ i i T ^
flowering pan.ele 7o cm. long, carrying about 9-10 partial inflorescences ; of the iatter
the uppermost are, however, small and rudimentary; the main axi 1 st.Wb/
irregularly angular, not swollen at the nodes; the lower partial i u f l o r e s c e n c e r t;
ANN. EOY. BOT. GARD,, CALcuirA, VOL, XII.