ng paragraph.

=Increased number of embryos.=--A ripe seed usually contains but a
single embryo, although in the ovular state preparation is commonly made
for more; and, indeed, in certain natural orders plurality of embryos in
the same seed does occur, as in _Cycadeae_ and _Coniferae_. In the seeds
of the orange (_Citrus_), in those of some _Euphorbiaceae_, &c., there
are frequently two or more additional embryos. A similar occurrence has
been recorded in the mango, for a specimen of which I am indebted to the
Rev. Mr. Parish, of Moulmein.[419]

Plurality of embryos has also been observed in--

Raphanus sativus.
*Citrus Aurantium!
Diosma, sp.
Hypericum perforatum.
Triphasia aurantiaca.
*AEsculus Hippocastanum!
Euonymus latifolius.
*Mangifera indica!
Eugenia Jambos.
Amygdalus vulgaris!
Vicia, sp.
Cassia, sp.
*Viscum album!
Daucus Carota.
Ardisia serrulata!
Cynanchum nigrum.
fuscatum.
Euphorbia rosea.
Coelebogyne ilicifolia.
Allium fragrans.
Funckia, sp.
Carex maritima.
Zea Mays.

See Schauer's translation of Moquin-Tandon, 'El. Terat.
Veget.,' p. 245, adnot., and 'Al. Braun Polyembryonie.'

=Increased number of the cotyledons.=--Although the presence of one or
of two cotyledons in the embryo is generally accepted as a valuable
means of separating flowering plants into two primary groups, yet, like
all other means of discrimination, it occasionally fails, and, indeed,
almost always requires to be taken in conjunction with some other
character. There are cases among flowering plants where the embryo is
homogeneous in its structure, there are others in which the number of
the cotyledons is more than two. Thus, in some seeds of _Cola acuminata_
the cotyledons vary in number from two to five. I have not been able to
ascertain precisely whether this multiplication of the cotyledons is
characteristic of all the seeds of particular trees, or whether some
only are thus affected. Some fruits that I examined bore out the latter
view, as in the same pod were seeds with two, three, and four cotyledons
respectively.

I have also seen three cotyledons present in embryo-plants of _Correa_,
_Crataegus Oxyacantha_, _Dianthus sinensis_, _Daucus Carota_, _Cerasus
Lauro-cerasus_. De Candolle alludes to a case of the kind in the bean,
and figures a species of _Solanum_ with three cotyledons.[420] Jaeger
alludes to a similar instance in _Apium