C. mattanensis.] BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 449 
unarmed, tubular, slightly enlarged in their upper part, closely sheathing; flat witb 
acute margins on the inner side; spikelets inserted above the mouth of their spathe 
with a distinct axillary callus, spreading, slightly arched, thick and comparatively 
short. 4-4°5 cm. long with 8-9 approximate bifarious flowers on each side; spathels 
coriaceous, very short, concavo-subcymbiform, prolonged externally into a broad 
rather obtuse point; involucrophorum shortly cupular, subtended by its own spathel, 
two-keeled on the side next to the axis; involucre cupular, slightly exceeding the 
involucrophorum, coriaceous, truncate, obsoletely bidentate on the side of the neuter 
flower, the areola of which is very conspicuous. lunate and sharply bordered. 
Fruiting perianth distinctly —pedicelliform; the calyx with 3 very short broadly 
triangular teeth; the segments of the corolla narrower and slightly longer, Fruit 
spheric, about 2 cm. in diam., very shortly mammillate; scales in 15 longitudinal 
series, very thick, shining, convex, narrowly channelled along the middle, straw- 
yellowish or yellowish-brown with acute very narrow scarious finely erosely toothed 
margins and an obtuse tip. Seed globular, 12 mm. in diam., minutely tubercled ; 
albumen very deeply ruminate; chalazal fovea punctiform, very small, penetrating far 
inside; embryo opposite the chalazal fovea. 
Hasitat.—North Celebes in the Prov. of Minahassa at Tomohon, the brothers 
Sarasin in Herb. Berol. 
OxseRvaTions.—I have seen of this only a very small portion of the spadix with 
only one partial inflorescence, bearing quite mature fruit. This specimen was united in 
the Berlin Herbarium with a specimen of Daemonorops Sarasinorum Warb., and on this 
ground I consider it as collected at the same time and locality with this. 
It is very distinct amongst the species known to me by its large round fruit 
with a very deeply ruminated seed, but there is no doubt about its affinities with 
C. albus and C. pallidulus, and these are shown also by the greenish-yellow tint of 
the different parts of the spadix, only partially hidden by a furfuraceous removable 
dark scurf. : 
Pirate 201.—Calamus macrospherion Bece. Portion of the spadix with an 
entire partial inflorescence bearing mature fruit; seed entire and in longitudinal 
section through the embryo.—From the type specimen in Herb. Berol. 
172. CarawUs MATTANENSIS Becc. in Rec, Bot. Surv. Ind. ii, 216. 
Descrrption.—Scandent, rather slender or of moderate size. Sheathed stem 12-17 
mm. in diam. non-flagelliferous (always ?). Leaf-sheaths gibbous above, very obliquely 
truncate and naked at the mouth, very thick and almost woody, strongly armed with 
light coloured (as the surface of the sheath) unequal spines; of these the largest are 
flat, narrowly lanceolate, 10-15 mm. long, and with a broad base which is swollen 
above, coneave underneath, and decurrent at the sides. Ocrea inconspicuous. Leaves 
rather large, cirriferous, about 1 m. long in the pinniferous part; petiole rather 
robust, 6-8 mm. broad, 25 cm. long, flattish or slightly convex above, rounded 
beneath, where armed along the middle, as at the sides, with solitary distant claws; 
Any. Roy. Bor. Garn., Catcurra Vor. XI. 
