126 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. K. junghuhnü. 
Malacca, and those from Singapore at Bukit Timah (Ridley No. 8782—Herb. Beccari), 
from Batu Pahat in Johore (Ridley No. 11208—Berlin Herb.), and from the State of 
Pahan (Ridley No. 13298—Herb. Beccari). 
OnsERVATIONS.—AÀ slender species, characterized by the leaf-sheaths which are 
smooth or only sparingly prickly; by the ocreae being closely sheathing, having a 
short coriaceous basal part, and the remainder fibrous and perishable ; by the leaflets 
being cuneately-rhomboidal, subglaucous on the lower surface or only paler than 
above; by the spikes being very slender and of a glabrous appearance on account of 
the spathels projecting considerably from the wool of the flower-bracteoles ; by the 
flowers having the calyx attenuate at the base, and about half exsertéd from the 
wool of the flower bracts, and finally by the very small turbinate fruit having a 
ruminate seed. 
After a very aceto] study I have been led to conclude that K. rigida BI. and 
K. polystachya are to be considered as the same species, and I now think that 
Kurz was not mistaken in uniting them; indeed, as I pointed out in Malesia (l. c.), 
the plates of K. polystachya in Martius (l c.) and those of X. rigida in Blume’s 
Rumphia are extremely alike. Apparently in the plant described by Blume as 
K. rigida the calyx is a little larger than in K. polystachya, and therefore the corolla 
is only twice as long as the ‘calyx, whereas in the specimens coming from the 
Malay Peninsula, and considered as representing the typical K. polystachya (Ridley 
No. 11208), the corolla is somewhat more than twice or nearly three times as long 
as the calyx; moreover, in the K. polystachya of Martius, the ovary (in full grown 
flower buds) reaches only to the base of the anthers, whereas in the typical Blume’s 
specimen of K. rigida the style attains only to the lower third part of the anthers. 
Of Blume’s typical K. rigida the fruit is unknown. Ridley gives for the fruit of 
KA. polystachya the length of $ inch (=95 mm.), and the not quite mature fruits 
of the specimens from Billiton referred by me to K. rigida are somewhat smaller 
(8 mm.); the difference therefore is very small. 
In the Herbarium at Calcutta there is a specimen of Kurz (No. 2824) named 
K. rigida, te which is assigned the locality of Java. The flowers of this specimen 
agree exactly with the figures given by Blume in his plate 157, only about the 
locality there may be some ground for doubt, as the specimens ,might have been 
collected in the Buitenzorg Garden and not really in the forests of Java. 
PrarE 77.—Korthalsia rigida 8/.—Primordial' leaf from a specimen collected by 
Prof. Engler at Singapore (Berlin Herb.); portion of the stem with a leaf entire, - 
from Ridley’s No. 8782 in Herb. Beccari; branch of the spadix in flower, from 
Ridley’s No. 11208 in Herb. Beccari. 
PrarE 78.—Korthalsia rigida Bl.—Portion of the upper part of the plant bearing. 
the base of the spadix and terminal part of the spadix with nearly mature fruits. 
Specimen from Billiton (Heyne's No. 103 in the Buitenzorg and Beccari Herbaria). 
12. KonrHaLsiA JunenuaNI Miq. in PI. Jungh. i, 162: Fl. Ind. Bat. iii, 76 ; 
De Palm. Arc. Ind. 15, 16; Boce. Malesia, IE TE 
Description.—Slender and high scandent. Sheathed stem 8—12 mm. in diameter. 
Leaf-sheaths at times almost smooth, but usually armed with small and very short 
