C. leptospadix | BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 143 
prolonged into a filiform clawed flagellum; partial inflorescences not many, very distant, 
very strict, slender, 20-40 cm. long, bearing on each side 10-20 adpressed spikelets; 
primary spathes narrow, tubular, closely sheathing, the lowest flattened, acutely 
two-keeled, scarcely armed on the back with some short spines; the secondary less 
flattened, very narrow and also very long, the upper cylindraceous, 30-40 cm, long, 
narrowed towards the base, where flat and smooth on the inner side, rather strongly 
clawed and externally produced at the apex into a lanceolate acute limb keeled 
on the back; secondary spathes tubular at the base and enlarged above into 
an ovate-lanceolate, long-acuminate, auriculiform, smooth limb which is keeled on 
the back and embraces the base of the spikes and terminates in a small brushed 
deciduous appendix 2-3 mm. long; spikelets curved or distinctly scorpioid, especially 
when young, arising distichously from the interior of their respective spathes, short 
(1-2 cm. long), the lowest the largest, with 6-12 bifarious, closely set and 
nearly horizontal flowers on each side; spathels very crowded, membranous, very 
broad, spoon-shaped, amplectent, acute, often penicillate-furfuraceous at the apex; 
involucre cupular, rather deep, obliquely truncate, flat and sharply two-keeled on the 
side next to the axis. Male flowers (full-grown buds) oblong, rather obtuse, 4-4'5 
mm, long, about 1°5 mm. broad; calyx tubular-campanulate, striate, divided down about 
to the middle into 3 broad, finely striately veined and rather obtuse or apiculate 
lobes; corolla twice as long as the calyx at most, divided down to two-thirds into 
' three oblong acute segments; filaments of the stamens subulate with inflected apex 
and united by their base to the tubular part of the corolla; anthers versatile, linear, 
sagittate, apiculate; rudimentary ovary formed by three subulate bodies, reaching to the 
base of the anthers. Female spadiz very similar to the male, the one measured 4 m, 
in length (including the slender filiform flagellum 60 cm. long ) and with five partial 
inflorescences; spikelets arising erect from the spathes and slightly outwardly curved, 
15-20 mm. long, with the flowers when young distinctly arranged in four series, of 
which two are of fertile female and two of sterile or neuter flowers, these last scarce- 
ly smaller than the others, each series composed of 5-8 flowers in the largest, 
the lowest, spikelets; spathels as in the male spadix, but deeper; involucrophorum anti- 
cously split and posticously discrete as if formed by two small bracts connate by their 
bases; involucre rather deep, obliquely truncate and laterally evolute on the side of the 
neuter flower, of which the areola is broadly ovate or nearly circular with sharply ` 
defined borders. Female flowers ovoid, about 3-3°5 mm. long, with the corolla a 
little longer than the calyx. Fruiting perianth not pedicelliform, split and spreading 
under the fruit. Fruit globose or globose-ovoid, about 10 mm. in diam, mammil- 
late-apiculate; scales in 18 series, not channelled along the middle, yellowish with a con- 
spicuous reddish-brown marginal line, broader towards the point, of which the extreme 
tip is pale, scarious, obtuse and not fimbriate; margins unequally erose. Seed irregularly 
globular, 8 mm. long and 6:5 mm. thick, shining, yellowish-brown when freed from 
the scanty coat with wbich it is enveloped, convex and coarsely alveolate on the 
back, marked on the ventral face with some superficial furrows radiating from the 
chalazal fovea, which is central, circular, rather deep and continued down to the base 
in a channel ending at the embryo; albumen equable, 
Hasrar.—N. E. India: Khasia Hills in Assam (Grifith, Hooker f. & Thomson). 
G. Mann from Assam sent me some complete specimens gathered at about 1000 m 
