£. Diepenhorstii.) BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 325 
It is a very variable plant as to the size of the fruit, the number of its 
scales, the dimensions and degree of branching of the spadices. The leaflets have 
usually 3 bristly nerves beneath, but in Lobb’s specimens from Borneo, the mid- 
costa only bears bristles on both surfaces. This specinien, if it really comes from 
Borneo, represents perhaps a local form, as, after mature examination, I now consider 
C. singaporensis, which has the leaflets with all its nerves naked beneath, to be. 
The specimen No. 7201 from Gunong Malacca has a partial inflorescence which 
instead of simple spikelets bears branchlets which have 4-5 very small secondary 
spikelets on each side; the fruit, which is not perfectly mature, is globose-ovoid, 
with scales in 18 series. In my specimens No. 907 from Sumatra the scales sre in 
24 series. 
Prate 126,—Calamus Diepenhorstii Mig. Portion of the sheathed stem of a very 
robust individual; an intermediate portion of a leaf (under surface); portion of a 
female spadix with flowers just after fertilisation,—the above from Scortechini’s 
No. 647 in Herb. Becc. A partial inflorescence of a supradecompouud spadix with 
‘immature fruit, from No. 7201 in the Calcutta Herb.; mature fruits and seeds, one 
of these longitudinally cut through the embryo, from Beccari’s P. S. No. 907. 
CALAMUS DIEPENHORSTII var. SINGAPORENSIS Becc. 
. . C. singaporensis Bece. in Hook. f. Fl, Brit. Ind. vi, 454, and in Rec, Bot. Surv. 
Ind. n, 208. 
DescripTion.—Leaflets as in the type but with the mid-costa naked on both 
‘surfaces or sometimes with a few straggling bristles above; the secondary nerves naked 
on both surfaces. 
Hasrrat.—Singapore: in the wild part of the Botanic Garden, H. J. Murton 
No. 126 in Herb, Kew.: and in the State of Johore in the Malayan Peninsula at 
Kowala Tebing tingi, Ridley No. 11200 in Herb. Berol. and Kew. 
OssERvATIONS.— The male spadix which accompanies the leaf in Murton’s specimens 
has the spikelets with spathels which exceed the involucres, while in the type 
usually the point of the spathels is on a level with their respective involucre; 
the young male flowers in the var. singaporensis are covered with brown and 
silvery scales. 
\ 
The abovementioned Lobb’s specimen No. 9 of the Calcutta Herb., said to 
come from Borneo, might probably also be considered as belonging to a distinct 
variety. This spevimen is of the base of a leaf with portion of the sheath and a 
male spadix which in no way differs from the corresponding portion of spadix of 
the Malayan specimens. The leaf-sheath has the characteristic black spines with light 
base but the sig only bear a few long bristles on the mid-costa of both 
surfaces. 
Prate 127.—Calamus Diepenhorstii var. singaporensis Bece. Basal portion of a leaf 
(under surfaee); basal portion of a male spadix with an entire per inflorescence,— 
From Ridley’s No, 11200 in Herb. Kew. 
