D. erectus. | BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 125 
collinus mentioned is terminated by a short appendix clothed with diminutive spathes; 
bu: ths termination of the spadix of C. erectus seems very variable. 
Amongst the numerous and complete specimens of C. ercctus which have been 
tent to me by Mr. G. Mann from the Khasia Hills, there is an entire male 
spadix without any flagelliform appendix at its summit aud with flowers more 
slender than usual; on the other hand another spadix is terminated by a flagelliform 
appendix 35 cm. long. Some of the female spadices have many partial inflorescen- 
ces, of which the largest, the lowest, bears on each side 8-10 spikelets; other spadices 
have 4-5 partial inflorescences only, and of these the lowest are composed of 3-4 
spikelets, and the uppermost of one. From the foregoing considerations, I fee] inclined 
to consider C. collinus also as not even a variety of C. erectus. 
A large specimen of C, erectus received from Dr. Treub and taken from a plant 
cultivated at Buitenzorg has a leaf 4 m. in length, including the petiole, which 
is 80 em. long, three-fourths-terete, 2 cm. in diam., narrowly channelled above, 
armed, in the lower portion of the rachis, with nearly complete, rather remote (5-10 
cm. apart) horizontal or slightly oblique pectinate whorls of flat pale spines, 2-3 cm, 
long and confluent at their bases. The largest leaflets are 75 cm. long. The 
spadix is nearly 3 m. long inclusive of a flattened peduncular portion 1 m. in 
length, and a terminal rudimentary slightly aculeate flagellum 50 cm. long. 
A very remarkable character in €. erectus is furnished by the two large and 
prickly auricles formed by the division of the ocrea at the mouth of the 
leaf-sheaths; but as that organ is deciduous, they are wanting in old leaves. 
PrarE 1.—Calamus erectus Rozd. The figure on the right side above is taken 
from a specimen collected by G. Mann in the Khasia Hills, and represents the 
upper portion of a leaf-sheath with the peculiar auricles of the ocrea and the basal 
portion of a mele spadix; from the same place and collector are the two fruits 
and the seed near the left corner. The figure in the middle represents a portion 
of a male spadix from Lakkat (C. B. Clarke). The figure on the left side is the 
lower portion of a leaf from the Khasia Hills (G. Mann) The figure on the left 
upper corner is a spikelet with ripe fruits and seeds frem Monsto (C. B. Clarke). 
The fruits in the middle are also from the Khasia Hills (C. B, Clarke). The fruits 
in the lower right-hand corner accompanied by an entire seed, one longitudinally cut 
through the embryo and snother in transverse section, are from Monsto (C. B. Clarke). 
CALAMUS ERECTUS Roxb, var. scuizospaTHus Bece. 
€. schizospathus Griff. in Cale. Journ. v, 32 and Palms Brit. Ind. 41, pl. clxxxvii; 
Mart. Hist. Nat. Palm. iiij 332; Walp. Ann. iii, 482 and v, 829; 
T. Anders. in Journ. Linn. Soc. xi (1869) 71; Gamble Man. Ind. 
Timb. 423; Becc. in Rec. Bot. Surv. Ind. ii, 197 
C. erectus Bece. (partly) in Hook. f. Fl. Brit. Ind. vi, 438. 
Descrirtion.— Leaflets more or less distinctly :j—5-costulate; the secondary nerves 
sometimes more conspicuous than in the type, and one of these on each side of the 
mid-costa furnished like it with a few bristles on the lower surface and sometimes 
also on the upper one mainly towards the summit. Male spadiz, spathes and spike- 
lets as in typical O. erectus, but the spathels more distinctly striately veined, 
