PENTANDRIA DIGYNIA. Five Chives. Two Pointals.
GENERIC CHARACTER.
Calyx. Perianthium quinquefidum, acutum, parvum, persistens.
Corolla. Monopetala, plana vel reflexa, quinquepartita, laciniis
ovato-acuminatis, levitèr cum sole flexis.
Nectaria quinque, tubo filamentorum infra antheras adnata, carnosa seu
cucullata, e fundo corniculum acutum introrsum flexum exserentia.
Stamina. Filamenta quinque, in tubum, basi ventricosum, connata. Antheræ
oblongæ, erectæ, biloculares, membrana inflexa, stigmati incumbente
terminatæ, utrinque ala reversa deorsum latescente. Pollen connatus in
corpuscula decem, obverse-lanceolata, plana, in loculis antheræ
dependentia e filis brevibus, sæpe flexuosis; quæ per paria annexa sunt
tuberculis quinque, cartilagineis, didymis, angulis stigmatis, inter
antheras, adhærentibus.
Pistilla. Germina duo, oblonga, acuminata. Styli duo, subulati. Stigma
utrisque commune, magnum, crassum, pentagonum, supra apicibus antherarum
tectum, medio umbilicatum.
Pericarpium. Folliculi duo, magni, oblongi, acuminati, ventricosi,
uniloculares, univalves.
Semina numerosa, imbricata, pappo coronata. Receptaculum membranaceum,
liberum.
Empalement. Cup five-cleft, sharp, small, remaining.
Blossom one petal flat or reflexed, five-parted; divisions pointedly
egg-shaped, slightly bending with the sun.
Honey-cups five, growing to the tube of the threads below the tips,
fleshy or hooded, protruding a sharp horn from the bottom which bends
inwards.
Chives. Five threads collected into a tube swelling at the base. Tips
oblong, upright, two-celled, terminated by an inflex membrane laying on
the summit, having a reversed wing on each side, growing broader
downwards. The pollen is collected into ten small bodies inversely
lance-shaped, flat, hanging down into the cells of the tips by short
threads, often flexible, which are fixed by pairs to five skinny twin
tubercules, adhering to the angles of the summit, between the tips.
Pointals. Seed-buds two, oblong, tapered. Shafts two, awl-shaped. Summit
common to both, large, thick, five-cornered, covered at top by the ends
of the tips, umbilicate in the middle.
Seed-vessel. Two pods, large, oblong, tapered, bellied, one celled, one
valved.
Seeds numerous, tiled, crowned with a feather. Receptacle skinny, free.
SPECIFIC CHARACTER.
Asclepias foliis candidis, obovato-oblongis; petiolis brevissimis;
laciniis corollæ reflexis.
Swallow-wort with whitened leaves, between inversely egg-shaped and
oblong; foot-stalks very short; segments of the blossom reflexed.
REFERENCE TO THE PLATE.
1. The Empalement.
2. The Chives and Pointal, natural size.
3. The Chives and Pointal, without the five outer scales or honey-cups,
magnified.
4. One of the outer scales, magnified.
5. One of the inner, upright scales, which surround the seed-buds,
magnified.
6. The Seed-buds, Shafts and Summit, with the chives attached to the
summit, magnified.
The Gigantic Swallow-wort, a native of the East Indies, is a very tender
hot-house plant; is very subject to lose its leaves in winter, and
requires the assistance of the bark-bed to keep it in perfection. In the
Kew Catalogue, it is said to have been cultivated so long ago as the
year 1690, at the Royal Gardens, Hampton Court. To render it vigorous
and flourishing, it should be planted in rich earth; composed of, one
half rotten dung, and the other leaf mould and loam; and watered but
sparingly in winter. It is seldom propagated but from seeds, which are
frequently procured from the East, and as often from the West Indies. In
the island of Jamaica, it is known by the name of the Auricula tree,
where it attains to the height of six or seven feet. Our drawing was
taken from a most magnificent specimen, obligingly sent us by Mrs.
Methuen, (of which our figure represents but a small side bunch),
measuring above a foot in diameter. The plant, we believe the finest in
England, is in the collection of Paul Methuen, Esq. Corsham, Wilts.
Much as we are inclined to tread in the beaten path of our predecessors,
and, more particularly, that of the greatest luminary of this intricate
science, Linnæus, yet can we, but with regret, forbear an alteration we
think so necessary, in the classification of this genus. That the class
Gynandria may, or ought to be excluded from the twenty-four, we shall
not be forward to give our suffrage, in conjunction with some modern
reformers; and, as they term themselves, improvers upon the Linnæan
system; but, whilst it is retained, this genus has stronger claims, in
our opinion, upon it, than any which has hitherto been thrown to it.
Indeed we had so classed it, upon such grounds had formed its generic
character; and had hopes, no one would have disputed our position as
just, upon an inspection of the dissections annexed to the figure. Yet
fearing, by some, it might be considered as a perplexing innovation; for
innovation in all cases is certainly more or less so, the genus having
passed the scrutinising ordeal of so many botanists; we have,
reluctantly, for the present, given up what, nevertheless, we shall
consider as necessary for some bolder hand than ourselves to undertake.
