The Anatomy of Vegetables Begun: With a General Account of Vegetation founded thereonGrew, Nehemiah
Science
The Anatomy of Vegetables Begun: With a General Account of Vegetation founded thereon
Grew, Nehemiah
Botany -- Pre-Linnean works; Plant anatomy
or Weather, unless to the _Rowls_ in breadth, that by the length were
super-induc’d; the _Stalk_ or _main Stem_ giving the same protection
here, which in other Plants by the Leaves, or some particular _Mantling_,
is contriv’d.
For according to the Form and Foulding of every Leaf or _Germen_, is its
protection order’d; about six wayes whereof may be observ’d; _sc._ by
_Leaves_, _Surfoyles_, _Interfoyles_, _Stalks_, _Hoods_ and _Mantlings_.
To add to what we have above given, one or two Instances. Every Bud,
besides its proper Leaves, is covered with divers Leafy _Pannicles_ or
_Surfoyls_; which, what the Leaves are to one another, are that to them
all: For not opening except gradually, they admit not the Weather, Wet,
Sun or Ayr, to approach the Leaves, except by degrees respondent, and as
they are leisurely inur’d to bear them. Sometimes, besides _Surfoyls_,
there are also many _Interfoyls_ set betwixt the Leaves, from the
Circumference to the Center of the _Bud_; as in the _Hasel_: For the
Fibres of these Leaves standing out so far from a plain surface; they
would, if not thus shelter’d, lie too much expos’d and naked to the
Severities of the Weather. Where none of all the Protections above-named,
are convenient, there the Membranes of the Leaves by continuation in
their first forming (together with some Fibres of the _Lignous Body_) are
drawn out into so many _Mantles_ or _Veins_; as in _Docks_, _Snakeweed_,
&c. For the Leaves here being but few, yet each Leaf and its Stalk being
both exceeding long, at the bottom whereof the next following Leaf still
springs up; the form and posture of all is such, as supersedes all the
other kinds of protection, and so each Leaf apart is provided with a Veil
to it self.
The Uses of the Leaves, I mean in respect of their service to the Plant
it self, are these; first, for Protection, which, besides what they give
to one another, they afford also to the _Flower_ and _Fruit_: To the
_Flower_ in their Foulds; that being, for the most part, born and usher’d
into the open Ayr by the _Leaves_. To the _Fruit_, when afterwards they
are display’d, as in _Strawberries_, _Grapes_, _Rasps_, _Mulberries_,
&c. On which, and the like, should the Sun-Beams immediately strike,
especially while they are young, they would quite shrivel them up;
but being by the Leaves screened off, they impress the circumjacent
Ayr so far only as gently to warm the said Fruits, and so to promote
their Fermentation and Growth. And accordingly we see, that the Leaves
above-named are exceeding large in proportion to the _Fruits_: whereas
in _Pear-trees_, _Apple-trees_, &c. the _Fruit_ being of a solider
_Parenchyma_, and so not needing the like protection, are usually equal
with, and often wider in Diameter than the _Leaves_.
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