r e f e r e n c e s to t h e p la t e s .
Tab. I. Represents a reduced figure of the entire plant, drawn at Syon, when the greatest diameter of it was only twenty foot. This figure will
be found to bo one-tenth of the natural size. The plant has since attained'to much-greater dimensions, and one leaf-stelk has measured in length
eighteen feet 1 The centre of the plant is indicated by,the reddish scaly stipules which crown, the rhizoma, and from which the leaves and flowers
emanate, all radiating, from that point. Leaves and flowers nro seen in different states of expansion.
Tab. H. The chief feature here is a flowor, natural sine, in its early or first stage of expansion, as soon on the first day and part of the second.
The a—■»p»™™«"*» are the scaly summit of the rhizoma, showing a very young convoluted loaf and its attendant flowcr-bud; a larger and half-
expanded loaf still puckered or corrugated and having tho margins very involute, together with ils flowor-bud half emorged. The leaf belonging
to the expanding flower is too remote to lie introduced, into tho picture, but a portion of the prickly petiole is to be seen. A fully ripe fruit
also its operculum having fallen out, and other leaves are introduced.
♦ i r ia mil. In this plate, along with a perfect fruit, leaves and buds in different stages, the object of the artist has been to introduce a flower
.(alt of tho natural size); at the period Of its fullest oxpansion ; the tawny yellow colour, indicative of approaching decay, already appears on tho petals,
and the stamens are in perfection. The flower, from which this was copied a t «yon, measured fourteen inches te diameter.
Tab. IV. The fourth and last plate is devoted chiefly to analysis.
' i f * I , A germinating seed, nat. size. Four different foram Of the infimt leaf are here exhibited before the orbicular leaves appear.
Fig. 2. A portion of the under side of the base of tho leaf; whore it is inserted upon the petiole, to show the nature of the ribs and their
ramifications, together with some of the lesser plates, or flattened ribs which unite these and form them into groat cell, or
chambora more than three incl^.deep (where tho ribs are largest). The prickles, it will be seen, are chiefly confined to the
back .or keel of these ribs, and to' tho edges of the transverse uniting plates. The sections of the ribs show the cellular internal
structure. This figure is of the nat. size. «
Fig:3: A portion (not. me) of the underside of the loaf taken from tho margin, including the upturned portion; the ribs gradually
• diminish as they ramify and recede from tho base of tho loaf, and they become less spiny.
Fig. 4. A vortical and transverse section of a portion of tho petiole with its prickles (not. size). By this section two out of the four principe^
air-cells are laid open, and the situation of the clustered cellular hairs is seen.
* Fig. 5. A cluster of those cellular hairs taken from a principal air-cell. Highly magnified.
Fig. 6,'A small portion of the upper surface of a leaf, highly magnified, to show the pellucid dots, or stomata (4).
Fig. 7. A portion of the lowor surface of ditto, which is always minutely hairy. Magnified.
Fig. 6. A transverse section of a peduncle, which, however, is the same in structure as the petiole. Nat. size.
Fig. 91 A vertical section of a fully expanded flower (nat. size) : this section is made exactly through the middle (««/. size). The lower part
»vl.;i;;te the germOn or ovary (two of tho cells being laid open) adherent with tho tube of the calyx. Immediately above e
ovary is the remarkably largo cup-shaped radiated stigma, having in its centre the conical tubercle or column. The mouth of the
calyx-tubo expands into a largo fleshy ring, from which arise all the petals and stamens. Wherever the section goes through
the petals or calyx, the copious elongated air-cells will be seen in tho interior. The stamteal crown consists of sevoral senes
of stamens, more or less perfect : tho most external entirely pctaloid ; the intermediate ones the most perfect, the innermost ones
of 811, lying nearly horizontally over the stigma, are abortive bnt thick and fleshy. Within the latter, again, and fringing the
- - mouth of tho stigma, are those'peculiar bodies or appendages fully described ¡above.
Fig. 10. Represents five different states of the stamens. Nat. size.
Fig. 11. Exhibits grains of pollen,, in threes, from the anthers. Highly magnified.
-Fig. 12. Section of tho torus or annular fleshy oxpansion at the mouth of the caly-’Gtube ; the calyx, petals, and stamens (which originated
' ' < froni.it), being removed ; but one of the innermost series of abortive stamens remaining, and two of tho appendages in the interior
of the torus. Nat. size.
*m. « y i-n i» d f c l t v f r M l y l U M 'H » ! . » *■> *• ““ 1
Highly magnified.
Fig. 14. Section of the column and, a small adjacent portion of the stigma. Magnified.
Fig. 15. Transverse section of tho ovary (not size), sô cut as to leave the central column of tho stigma.
* Fig*16. Ovule, with its podospcrm or footstalk, By which it was attached to tho wall of the cells. Magnified.
„■ Fig. 17. Fully formed fruit (nat. size). Tho operculum still attachod.
■ ' A U f c Si,,«.1.1»; - « ... Hi™ M .Ï from 11» H I H . « 0» «Is. ■ 1” » « «■”
of the peculiar bodies which did line the inside of the torus, (as shown at Figg. 9,12.)
Fig. 19. Seed. Nat. size.
Fta. 20. Vortical section of the seed, showing the albumen and embryo. Magnified.