a_. bracteoid body, _b_.
sterile stamen, c.c.c. outer series, d.d. inner ditto.

The fact of the outer smaller laciniae belonging to a second series is
not very apparent, but is corroborated by the evidently internal
situation of the bracteoid scale, and by the evidently elevated lines
visible in the inner.

(_April 3rd_, _1837_.--On march towards the Serpentine mines) the face
of the perianth, corresponds to these smaller laciniae.

_April 7th_.--Thunbergia grandiflora has the pedicels of its flowers
twisted, or not twisted, according to the situation of the flowers. Thus
if the flower be so situated that the raceme has the direction of the
axis, or in other words is erect, the pedicel is straight, but if the
raceme, as generally happens, be pendulous, the twisting of the pedicel
is resorted to, to secure the flower that situation which it would have,
were the raceme erect.

The above is obvious in flowers which from elongation of the axis of
inflorescence, have fasciculate or aggregate flowers. An obvious
inference is, that the twisting of the pedicel is not of generic, nor of
specific importance; and that it is capable of being produced
artificially.

This resupination is not uncommon in the order; it is most evident in
Thunbergia coccinea, in which the racemes are always pendulous. There is
nothing, at least in this species, in the situation of the genitalia to
account for the resupination.

Pedicelli demum apicem infra articulati, the inflorescence of this order
is always centrifugal, the partial axis being invariably as well indeed
as the general, disposed to dichotomy. Hence the very common presence of
three bracteae to each flower, the central one presenting the leaf from
whose axil the partial branch springs.

Stipulae--if the analogy of these be difficult to ascertain, the
structure and functions would appear to be as of leaves, in addition to
the function of protection. In most cases they are certainly not double
organs; in Naucleaceae they are apparently so. Can this be explained by
supposing them to form a bud with four scales, the scales instead of
being imbricate, being on one plane. Stipellae of Leguminosae are
certainly single; these being all probably stipulate plants, are to be
considered as having terminal buds, the buds being either totally, or
partially protected by the stipulae. The difficult nature of ochreae of
Polygoneae is certainly to be acknowledged, but they are similar to t