406 ON APONOGETON. 
numerosi, in spadice cylindrico spiraliter dispositi, primo 
conferti, demum rachide elongata sparsi; scapo longis- 
simo ex aquá emerso. Spatha acuta, ante anthesin decidua. 
Sepala duo, subspathulata, basi quasi unguiculata, colorata 
(lacteo-alba), caducissima, staminibus duobus lateralibus op- 
posita. Stamina 6 ; filamentis erectis, divaricatis, carnosis, 
persistentibus ; anthera biloba, lateraliter dehiscente deci- 
duo, e flavo-ceerulescente ; polline acute elliptico, luteo. 
Pistilla 3, ovario superiore libero ; stigmate sub-terminali. 
Folliculi 3, divaricati, dispermi; seminibus erectis, um 
bilico brevi; testa levi; membrana interiore tenuissima. 
Embryo erectus; cotyledone concava, carnosa, plumulam 
amplectente; plumula maxima bifolia, foliis ineequalibus 
margine involutis. 
REFERENCES TO BOTH PLATES. 
Tass. XVII, XVIII. 
a, Asingle flower, seen sideways. 
b, Ditto from front, shewing the two bracts in situ. 
c, Stamen. 
d, A single bract. 
e, Flower. 
J. Flower after inflorescence ; capsule nearly ripe with persistent bracts and 
stamens, 
g, Another more magnified, resting on the side. 
h, Section of ditto, showing its two cells placed back to back. js 
i, Pollen, in Tab. xvii. gibbous (in Tab, xviii, j, globose, when under 
influence of iodine), 
k, Pistil, with oblique terminal stigma. 
1, Ditto, section showing ovaries in situ, 
m, m, Capsules. ; 
n, Section of ditto. 
0, Seed. $ 
p- Ditto, magnified. 4 
q 4, Ditto, outer coat taken off, showing the raphe and chalaza in different 
views. 
r, Embryo, all the coats taken off, 
3, Second coat taken off, striated, dark-brown, chalaza green. 
t, Transverse section of seed, shewing eight ribs of outer coat. - 
v, Longitudinal section of capsule, 
