Q. zonatus.) BECCARL THE SPECIES OF CALAMUS.—SUPPLEMENT. 9 
lanceolate, acute, smooth outside. Fruit very small, spherical (8-9 mm. in diameter), 
shortly beaked, the beak three-lobed; scales convex, not or very faintly grooved along 
the centre, dull, of-a hazel-uut colour, darker towards the obtuse point, their 
margins finely erose-ciliolate. Seed globular, boldly tubercled or lobulate, subcerebri- 
form, slightly flattened, 6—6°5 mm. in diameter, 5 mm. thick, with a deep circular 
chalazal fovea on the centre of the raphal side; albumen homogeneous; embryo 
basal. ; 
HaBrrAr,— Dutch Borneo; Sungei  Tepussy (sic?); collected by Jaheri, Exp. 
Nieuwenhuis (No. 770, in Buitenzorg Herbarium.). 
OBsERVATIONS.—In its leaves it is hardly distinguishable from C. ruvidus; but the 
spadix is much more elongate, has much longer partial inflorescences, and these 
have elongate dry | spathes; otherwise, it is certainly very closely related to 
C. ruvidus, with which it agrees also in the appendicular parts of the spikelets, and 
especially in the involucre accompanied by the comparatively very large and orbicular 
areola of the neuter flower. If the spadix of C. ruvidus as represented in Plate 31 
of this volume is a normal one, C. rhytidomus is easily distinguishable from it. 
Probably the male specimen collected by Motley at Banjarmasjing and mentioned by 
me under C. ruvidus (p. 170 of this volume) belongs to ©. rhytidomus, 
SuPPL. Prate 3,—Calamus rhytidomus Bece. Portion of a sheathed stem with an 
entire leaf in two parts,; an entire female spadix; detached seeds, one cut longi- 
tudinally through the embryo. From Jaheri’s No. 770 in Buitenzorg Herbarium. - 
25 CALAMUS SCABRIDULUS Becc. I consider as belonging to this species a speci- 
men with male spadices sent to me by Ridley and collected at Sungei Semangat, 
Muar. ‘This species is not mentioned by Ridley in his “ Materials for a Flora of 
the Malayan Peninsula." 
26. Caramus  MURICATUS Becc. A Calamus of the Buitenzorg Herbarium 
(No. 16325) collected in West Dutch Borneo by Tejsmann, | think, and probably in 
the Residency of Pontianak, native name—''Rotan Tunggal matang,” apparently 
belongs to this species. The specimen seen by me corresponds to the type figured in 
plate 33 in size and armament of the leaf-sheaths, and in length and spinescence 
of the petiole, but the leaflets are more approximate, although inequidistant, One 
leaf is on the whole 1:2 m. long, its pinniferous part is 75 cm. long and has 15 
leaflets on each side; the leaflets are dull on both surfaces, sparingly bristly on 
1-3 nerves above, or even quite smooth; under surface and margins smooth. 
27. Calamus zonatus Becc. Collected in N. W. Dutch Borneo at Sungei 
Kenepai, Residency of Sambas, by H. Haller (No. 2020 in the Buitenzorg 
Herbarium).  Halliers specimens very slightly differ from that figured in plate 34 
in the leaf-sheaths, which have more prominent wrinkles, the pungent warts being 
frequently transformed into short broad-based spines; in the male spadices which 
have shorter partial inflorescences, with fewer spikelets; the petiole is 5-6 cm. 
long; the leaflets usually have the mid-costa smooth on the upper surface, but at 
times this carries a straggling bristle; the lowest spathe is rather strongly 
flattened and armed on the edges with small horizontal spines, otherwise it is 
smooth ; secondary spathes and spathels more or less scabrid. 
Ann. Roy. Bor. Garp. CarcurTA Vor. XI. 
