BECCARI. MONOGRAPH OF THE GENUS CALAMUS. 505 
flat and discoid; the areola of the neuter flower (c) is represented by a small tubercle; the 
fruiting perianth (o) is pedicelliform. 
Fic. 2.—Portion of a female partial inflorescence of C. Zollingerii, with the basal part of the 
spikelets bearing ovaries in course of development; the secondary spathes (m) are cut open on 
their anterior part to show the insertion of the spikelets to the bottom of their respective spathes 
by means of a distinct pedicellar part (Z). 
Fic. 3.—Portion of a fruiting spikelet of OC. didymocarpus stripped of its fruits; in its upper 
part is the insertion of two geminate fruits, which have a single involucrophorum (a) and two 
shallowly cupular involucres (5); these united by their inner sides and with the trace of an areola 
(c) for the reception of the neuter flower in the midst; in the lower part of the figure is the 
insertion of a fruit, solitary as in most species, with the involucrophorum (a) as above, the 
involuere (b) cupular furnished externally with a very distinct areola (c) and this marked by a 
conspicuous scar (/) where was attached the neuter flower; in both cases the involucrophorum is 
inserted laterally at the base of the spathel above its own and is conspicuously bidentate above on 
the side next to the axis. 
Fic. 4.—( This and the following figures belong to C. Griffithianus.) Portion of a male 
spikelet with broadly infundibular spathels (k), each spathel bearing attached to its. bottom a 
subpedicellate involucrophorum ( 5). | 
. Fre. 5.—Male flower open showing the stamens coalescent at their base with the corolla, and 
the central abortive ovarium (nm). 
Fic. 6.—Female flower during anthesis with a spathaceous subpedicellate involucrophorum (a), 
the involucre (ò) with tbe neuter flower (f) in its areola; this seen in profile. 
Fic. 7.—Another female flower with its involucres during anthesis. 
Fic, 8.--Female flower with its involucre still closed, with a front view of the ovate acute 
concave and sharply bordered areola (¢ ). 
Fic. 9.—The same flower as fig. 8; back view of the involucrophorum (a); this flat and 
acutely two-keeled on the side next to the axis. | 
Fic. 10.—Female flower, divested of its involucre, with calyx (4) and corolla (e). 
Fic. 11.—Female flower cut open, to which has been carried the calyx and a portion of 
the corolla; it shows the internal staminal tube (g) which envelopes the ovary and the abortive 
erect sagittate anthers. 
Fie. 12.—Neuter flower with calyx and corolla and six stamens; these have subulate filament 
inflected at their apex and bear effete anthers; in the centre is the rudimentary ovary (n). 
-— 
N.B.—In both plates the letters indicate the same organs as follow:— 
a)  Involucrophorum, 
(5)  Involucre, 
(e) ^ Areola of the neuter flower, 
(d) Calyx, 
(e) Corolla, 
(de) Female flower, 
(4) The scar or point of insertion of the neuter flower, 
(i Axillary callus with transversal rima, 
(4) — Spathels, 
(/)  Pedunculer part of the spikelet, 
(m) Secondary spathes, 
Ann. Roy. Bor. Garp. CarcurrA, Vor. XI. 
