C. khasianus. | BECCARI, MONOGRAPH OF THE GENUS CALAMUS. 431 
sub-5-costulate, the mid-costa rather acute and the side nerves slender, all naked on both 
surfaces; margins spinulous-serrulate; in each fascicle the leaflets are very approximate 
by their base and divergent or pointing different ways. Male spadiz TNT 
Female spadiz apparently non-cirriferous (not seen entire by me); primary spathes 
tubular, slightly enlarged above, not very elongate (those seen by me 5-6 cm. 
long) rather closely. sheathing, channelled near the base on the inner side, entire at 
the mouth, prolonged at the summit into a rather elongate triangular point, faintly 
keeled and with a few prickles on the back near their summit; partial inflorescences 
inserted above the mouth of their own spathe with 3-4 spikelets on each side; 
secondary spathes tubular, slightly infundibuliform, smooth, 19-15 mm. long, entire 
snd truncate at the mouth, prolonged at one side into a triangular point; spikelets 
inserted outside the mouth of their respective spathe with a distinct axillary callus; 
spathels infundibuliform, truncate and entire at the mouth, extended at one side into 
a very short broadly triangular point; involucrophorum exsert from its own spathe 
and laterally attached at the base of that above its own, shortly cupular, two- 
keeled and bidentate on the side next to the axis; involucre slightly exceeding the 
involucrophorum, cupular, its margin undulate; areola of the neuter flower lunate, 
sharply bordered. Fruiting perianth distinctly pedicelliform, indurated, cylindraceous, 
PME. x j 
HanrrAr.— Central Burma, at Byinkyé (alt. 1,200 m.) discovered by Mr. W. H, 
Craddock (Herb. Cale.) The label bears also the following indications:—“A cane 
"-9" girth. Fruit 9. 3. 02,” 
OssERVATIONS.— Of this species I have seen only an intermediate portion of a 
leaf, a portion of a young female spadix, and a spikelet, detached from a fruit 
spadix, but with only a fruiting perianth left attached to it. This spikelet is 10 em, 
long and bears distichously 9 flowers on each side; the spikelets of the young spadix 
bear 5-6 flowers only on each side. 
The structure of the female spikelet is very similar to that met with in C. Doriæi 
but of this the leaves are unknown and as the specimen of C. polydesmus is without 
fruit, it is difficult to compare the two. It may indeed transpire that the two are 
not distinct specifically when both become better known. 
Prare 191A.—Calamus polydesmus Bece. Portion from near the summit of à 
young female spadix; spikelet from a fruit-spadix with only a fruiting perianth still 
attached to it; an intermediate: portion of a leaf; these parts constitute Mr. Craddock’s 
entire type specimen in Herb. Cale. | Ne. 
163. CALAMUS KHASIANUS Becc. sp. n. : ; 
Description.—High scandent and very robust. Sheathed stem 5 cm. in diam,; naked 
canes 25-3 cm.; the internodes about 25 cm. long.  Leaf-sheaths light-coloured when 
dry, almost polished, not or indistinctly longitudinally striate, strongly gibbous above, 
obliquely truncate at the mouth, more or less armed mainly on the back with very 
large, scattered or slightly confluent (not in whorls), altogether light-coloured, laminar, 
very broad, lanceolate, 2-3 cm. long spines, which leave impressed their outline 
on the sheaths, and have a base up to 2 cm. broad, concave beneath and tumescent 
