266 Mr. Grirritu on the Ambrosinia ciliata of Roxburgh. 
fruit being unilocular and the placenta central, attached only by its base and 
apex. 
In his MS. Synopsis Roxburgh says of the seeds of C. ciliata :—“ The seed 
generally vegetates in the capsule, and is as completely polycotyledonous as 
any Pinus, or even Dombeya, the Norfolk Island Pine, itself.” In his * Flora 
Indica*’ he describes the embryo as erect, furnished with a perisperm, and 
many subulate cotyledons as in Pinus. 
I subjoin the character of the genus taken from the ‘ Meletemata Bo- 
tanica' :— 
“ Spatha tubo brevissimo, limbo elongato. Spadix spathe plicá tubum 
claudente (appendiculà) conjunctus. Antherz confertz, loculis amplis cel- 
lulzeformibus, marginatis, septo valdé distincto separatis ; poro (7) dehiscen- 
tibus. Ovarium pluri- (6) loculare, ovulis diversá altitudine axi affixis, peri- 
tropis. Styli plures (?) ; stigmata radiata. Semina albuminosa, testa spon- 
giosa (?). Embryo cotyledonibus (protophyllis?) pluribus.—Asiaticze ; rhizo- 
mate stolonifero; foliis vagina petiolari dilatatá, laminá integra uninervi ; 
floribus suaveolentibus." 
M. Schott has referred Caladium ovatum of Ventenat, Karin-Pola of 
Rheede's * Hortus Malabaricus,’ vol. xi. p. 45. t. 23, to this genus. The struc- 
ture of the fruit as described and figured by Rheede appears however to be 
somewhat differentt. With this, Arum aquaticum of Rumph's * Herbarium 
Amboinense, vol. v. p. 312. t. 108, has no apparent affinity. 
The roots are cellular and vascular in the centre, cellular towards the cir- 
cumference ; the intermediate part being occupied by a number of cavities 
(containing aériform fluid), the walls of which are formed of a single series of 
cells, and which radiate from the centre. This structure seems not uncom- 
mon among Monocotyledonece. The petioles and the membraniform sheaths 
are arranged alternately, but corresponding in direction with each other, the 
* Vol. iii. p. 492. 
t In Rheede's plant there would seem to b 
subdivision existing in the tissue of the 
and in a higher degree in C. spiralis, as represented by Dr. Wallich’s artists, I shall not be surprised 
if species be found to exist with ovaria disposed in two or more series ; in such case their direction will 
most probably become more horizontal. 
€ an increased number of ovaria, From some degree of 
spadix between and within the apices of the ovaria in C. ciliata, 
