C. deerratus | BECCARI, MONOGRAPH OF THE GENUS CALAMUS. | 151 
their margins pale, very finely and minutely erosely ciliate. Seeds (immature) 
usually 3, with smooth surface, convex back and two flat ventral facets, occasionally 
one or two of the seeds tending to abort. 
Hasrrat.—Java (Kurz in Herb. Munich and Zeysmmann in Herb, St. Petersb.)— 
Javanese name “Hooy buluk-buk”—vide Blume, Rumphia iu, 30. 
OpsERVATIONS.—I have seen of this only one leaf, apparently a radical one and 
deprived of its sheath, and some portion of a spadix bearing not quite ripe fruits ; 
these specimens were sent to the St. Petersburg Herbarium by Teysmann. Another 
more incomplete specimen, perfectly like the preceding, is preserved in the Herbarium 
at Munich, sent there by Kurz. On these specimens alone is based the description 
above, but I consider as conspecific with the specimens mentioned another which I 
have received from the Leyden Herbarium, In this the spikelets are 8-12 cm. 
long, the fruit is perfectly globular or a trifle longer than broad (10-12 mm. in 
diam. ), rounded at both ends, but surmounted by a very short beak; the scales are 
in 23 rows and have a very narrow intramarginal line. In all the ripe fruits 
which I have examined I have found only a single seed fully developed; of the 
other two seeds only inconspicuous traces were found. The seed has an even, 
dark, opaque, not alveolated nor pitted surface, is orbicular, somewhat depressed, 
9-9:5 mm. in diameter, somewhat concave on the raphal side and with a shallow 
chalazal fovea; the albumen is equable and the embryo is situated near the base of 
its ventral and convex face. A leaf in the Leyden Herbarium, labelled ** Java: 
Hooy belock-buk, Hasskarl,” apparently belongs to the fruiting spadix just described, 
but is armed on the back along the middle of its rachis with a few small short 
solitary and remote claws. 
PLATE 18.— Calamus Burckianus Bece. Partial inflorescence with unripe fruits 
and apex of a leaf seen from the upper surface with a small portion at its base 
seen from the lower; these parts are from Teysmann’s specimen in the St. 
Petersburg Herbarium. ‘The spikelet with mature fruits, the seeds and the portion 
of leaf on the left-hand side are from the specimens in the Leyden Herbarium 
described in the observations, 
13, CALAMUS DEERRATUS Mann & Wendl. in Trans. Linn. Soc. xxiv, 429, t. xl, 
F; H. Wendl in Kerch. Les Palm. 236; Drude in Bot. Jahrb. xxi. 
iii; Beco. in Rec. Bot. Surv. Ind. ii, 199; Wright in Fl Trop. Afri, 
viii, 109 (partly). | 
DescairTion.—Scandent, rather slender, or of moderate size, 5-10 metres long. 
Sheathed stem 18-25 mm. in diam,  .Leaf-sheaths rather thickly coriaceous, more or 
less partially fugaciously scaly-furfuraceous, gibbous above, rather densely armed with 
brown, rigid, flat, very thin, lanceolate, subulate spines which arise from a broad 
but not tumescent base and are often divided or laciniate or with the margins 
deeply cleft, spreading or slightly deflexed, solitary or aggregated in small series ; 
the spines are more abundant, longer (as much as 2 cm. long) and more distinetly 
seriate on the ventral side of the upper portion of the sheaths, where from a 
horizontal position they gradually become erect near the base of the petiole. Ocrea 
