156 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [0. depressiusculus 
most persists and is flat or slightly concave (at least in its upper part), is 
spathulate-cuneiform, and gradually narrows from near the upper end towards the base, 
internally it is glabrous and polished, externally grey and rusty-furfuraceous, armed more 
or less on the back, and especially near the base, or at least on its two very obsolete 
keels, with solitary or fascicled, spreading, often shortly seriate, blackish spiculae; inner 
spathes smaller, deciduous, slightly spinulous .along the dorsum but quite smooth 
in the cultivated plant; the pedicellar part of the spadix is rather short, armed with 
fascicled, subverticillate, spreading, needle-like spines; the flowering panicle is strict or 
very slenderly cupressiform; all the axial parts are covered with a rusty-furfuraceous 
indumentum; the main axis is subterete in its lower part, irregularly angular higher 
up, and bears 8-10 partial inflorescences which are much branched, appressed to the 
. main axis, 10-12 cm. long, and cupressiform on the whole; secondary spathes scale 
like, scarious, extended at one side into a broad triangular point; the branchlets 
have 8-9 spikelets on each side, which are bifariously set, but all turned outwards- 
the lower spikelets are the largest, 1 cm. long, and have 8-10 sub-unilaterally set; 
flowers in all, the others successively shorter, and with fewer flowers; their axes 
are filiform, angular, indented at the insertion of each flower; spathes very small, 
very shortly produced at one side into a small rounded limb; the involucre has no 
distinct limb and is reduced to a circular rim, Male flowers oblong, obtuse, very 
small, 3-3:5 mm. in length; the calyx very small and short, divided almost 
down to the base into 3 small triangular acute teeth; petals oblong, strongly 
striately veined. Female spadix. not seen entire by me; female spikelets 4 cm. long 
with comparatively numerous, approximate, bifarious flowers (7-8 on each side); the 
axes rather slender, sinuous, acutely 3-gonous and covered with a thin adherent 
rusty-brown indumentum; spathels very shortly annular, slightly produced at one 
side into a small triangular point; involucrophorum  pedicelliform, short and thick, 
about 1 mm. long, with a distinct axillary callus, and without a distinct limb; 
involucre almost on a level with the involucrophorum, discoid, orbicular, slightly-eonvex B 
also without a distinct limb; areola of the neuter flower very small, punctiform. 
Fruiting perianth almost flat. Fruit rather small  globular-depressed, mucronate- 
umbonate in the centre, 12-13 mm. in diam; scales arranged in 18 longitudinal 
series, rhomboidal, almost as broad as long, narrowly grovved along the centre, 
straw-coloured especially in the central part but reddish at the edges, their point 
not produced, obtuse, the margins entire very narrowly scarious. Seed conspicuously 
depressed, subreniform, minutely pitted, slightly and almost equally convex on both 
surfaces, 10 mm. long, 8'5 mm. broad, 6 mm. high, very deeply ruminated; the 
chalazal fovea small, pit-like, narrow and deep, situated on the raphal side not far 
above the base; embryo almost central on one of the surfaces. 
HanrraT.—Sumatra. The type specimen was collected in Sumatra by Teijsmann, 
but the exact locality is not known. I consider as belonging to D. depressiusculus, 
a fruiting spadix collected in the forests near Mount Sibajak, in the Battuk country, 
Residency of Deli in W. Sumatra, and sent by Mr. Vriens to Professor Martelli in 
05. 
1905 
OnsERVATIONS.—l have received the fruits of the true Calamus depressiusculus Teijsm. 
et Binn. from the Herbarium of Utrecht; these I have described, and upon these the 
