Z. clemensiana. ; ZALACCA. 81 
Probably to this “supposed” species is referable a specimen collected by Teijsmann 
at Priaman, also in the Province of Padang (No. 2029 in Buitenzorg Herbarium 
and labelled Z. Wallichiana. Mart. ; which certainly is the species so named by 
Miquel l. c. 
Osservations.—It is one of the forms which are to be grouped with Z. edulis 
Reinw; but I remain somewhat uncertain about its value, its male spadix not 
being known, because in the group to which it belongs, the different species are 
very much like each other as to the fruit, whereas the male spadices and the 
male flowers afford good diagnostic characters. 
Z. sumatrana is apparently distinguishable from Z. Blumeana and Z. edulis by 
the leaves having regularly alternately arranged and equidistant large elongate 
leaflets ; by the rhachis being spinous only along the dorsum; but principally by 
the fruit having a long and narrow tapering base; also by the obsoletely and i 
irregularly angular seeds, broad and somewhat flattened, rounded above, and atten- 
uate below; and by the scale distinctly keeled along the centre. | 
PLATE 48—Zalacca sumatrana Becc.—Intermediate portion of a leaf; one spike 
with some of its not quite mature fruits ; two entire fruits ; two fruits open, showing 
the seeds “in situ” enveloped in their integument ; seeds divested of the integu- 
ment; one cut through the embryo and the apical pit. The! type specimen in 
Herb. Becc. The fruits were preserved in alcohol. 
Latin Diagnosis. Zalacca sumatrana Bece. sp. nov.  Frondium segmentis amplis, 
valde elongatis, regulariter et alterne aequidistantibus, rachi tantum in dorso 
spinosa; fructibus obpyriformibus, basi longe angusteque attenuatis; seminibus 
anguste oblongis et irregulariter obtuseque angulosis, apice rotundatis, basi attenuatis. 
5. ZALACCA CLEMENSIANA Becc. Notes on Philip. Palms in Philip. Journ. Science 
(Botany) iv, (1909), 618. 
Description.—Leaves very large, 5 or more metres long, the  petiolar part 
densely armed with large, broad-based, long spines; rhachis in the intermediate 
portion acutely trigonous, with a line of long spines along the centre beneath, 
Leaflets interruptedly fasciculate ; the fascicles in the intermediate portion usually 
alternate and formed by 3 or 4 leaflets on each side of the rhaehis. somewhat 
pointing in different ways, elongate-lanceolate, rigidly papyraceous, green and shining 
above, ashy-coloured beneath, slightly sigmoid at the base; the apex briefly faleate, 
abruptly and asymmetrically tapering into a long filamentose tip; the margins 
minutely spinulous. from the middle upwards; transverse veinlets very sharp 
and prominent on the upper surface. much less visible on the. lower; the 
mid-costa prominent and smooth on both surfaces; the lower and intermediate . 
leaflets about 60 cm. long and 6—7 em. wide, distinctly 3-costulate; upper 
leaflets smaller and with the side coste slender and evanescent upwards; the 
leaflets of the end more distinctly falcate and more sigmoid than the others, 
and more or less united. Male spadices arising erect from the axillas of the 
expanded bases of the petioles, 60—90 cm. long, inclusive of a short pedicellar | 
part, and bearing 5—7 branches, the one above the other, 5—8 em. apart, 
i 
ANN. Roy. Bor. GARD., CALCUTTA, VOL. XII. 
ì 
