4 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. [C. Schweinfurthil. 
bears the locality of Falaba and is the type of €. falabensis Rece. Probably to this 
last species belong also Sco/t-Hiliot’s Nos. 4738 and 5121. 
20. CALAMUS ScuwEIrNFURTHII Becc. 
Good specimens of this plant, with spadices bearing male flowers and fruits, 
have been collected by Dr. Milbraed, in the district of Beni, in the region of 
Ruwenzori, in January 1908 (No. 2193 in Herb. Berol. The sheathed stem of 
the adult plant is 15-18 mm. in diameter. The leafsheaths are armed with scat- 
tered, small, black, laminar spines which have a bulbous light-coloured base. 
The Jeaves of the full grown plant are 85 cm. long on the whole, of which 
12-15 cm. are taken by the petiolar part; this is flat on the upper and convex 
on the lower surface, where it is armed along the centre with elongate claws; the 
margins are acute and armed with spines, horizontal or pointing in different ways. 
Leaflets about 30 on each side, slightly inequidistant, 2-5 em. apart on each side 
in the lower part of the rachis, closer (1-2 cm. apart) and almost equidistant from 
the middle upwards; those near the base are 25-30 cm. long, 10-12 mm. broad; 
those of the middle 20-25 em, long, 15-18 broad, the upper ones gradually 
and slightly shorter, otherwise as already described. Male spadices very similar to 
those of C. deerraius, simply decompound, flagelliform, bearing very few (3 in one 
specimen) partial inflorescences that carry several strongly arched spikelets on 
each side, and terminate in a taillike  spikelet longer than the others. The 
spikelets are usually 5-6 cm. long, and have 10-20 flowers on each side; spathels 
brown, broadly and asymmetrically infundibuliform, produced at one side into 
a triangular acute point; involucre dimidiately cupular or of the shape of a 
swallow’s nest, obliquely truncate, acutely two-keeled and with the margin lunately 
excavate on the axial side. The full grown unexpanded male flowers are ovoid- 
oblong, very obsoletely trigonous, not or very slightly curved, 6-7 mm. long, 3 mm. 
broad; the calyx is parted down to the middle into 3 acute lobes; the corolla 
is not quite twice as long as the calyx; its segments are lanceolate-elliptical, 
acute. Filaments of the stamens subulate; anthers lanceolate apiculate, with the 
cells deeply disjoint in their busal part. A partial inflorescence loaded with fruits 
is 85 em. long and has 12-13 spikelets on each side. The fruits are exactly as 
already described, 16-19 mm. , long, 12-15 mm. broad (quite mature). Seed 10 
mm. long, 85-9 mm. broad. 
. After a careful study of the good specimens of ©. Sehweinfurthii collected by 
Dr. Milbraed I feel inclined to consider this palm as only a geographical form, 
or, at most, as a sub-species of (C. deerratus. The only appreciable diagnostic 
character I have been able to discover between the two is in the fruit, which in 
C. Schweinfurthii has fewer, and consequently larger scales, with the margins 
less distinetly fringed-ciliate than in the other.  'The male spadices of OC. Schwein- 
furihii which were hitherto unknown, offer but slight differences, the flowers being 
only slightly larger and possibly less curved than those of C. deerratus. The 
petiole of the leaves of ©. Schweinfurthii varies in length according to the age 
of the plant, being short in those of the full grown and longer in those of the 
young plant as were those collected by Schweinfurth, and already described by 
me. : 
