The sori are very abundant, but as these are small they should be
carefully examined. They occur about midway between the central vein of
the pinnule and the margin of the leaf. The indusium is not clearly
linear, being more in the shape of a horseshoe, but this character can
only be recognized before the delicate covering has started to shrivel.
There are a huge number of variations of the Lady Fern, but many bear a
more or less striking resemblance to the type.
Happily the Lady Fern is common in many parts of the United Kingdom.
Often it is to be found growing surprisingly near to towns, though its
pretty green foliage makes a strong appeal to the eye of those vandals
who go about uprooting every fern which they see. It is of easy culture
in the garden. The fronds of the Lady Fern develop in the spring of the
year.
_Asplenium septentrionale._ The specific name means “northern,” and this
has reference to the fact that the species is more abundant in the north
than in the south. The Forked Spleenwort.
The fronds of this Fern are of a thick leathery nature, but they are
rarely more than about two inches in length. As they are produced in
thick tufts, the individual plants will often cover a good deal of space,
considering the diminutive nature of the plant as a whole. The stipes is
considerably longer than the leafy portion of the frond; this latter is
of a very simple nature, being composed of two or three blades which fork
out something on the lines of a stag’s horn. The plant is quite unlike
any other British Fern, although its foliage bears a singular resemblance
to that of the Buck’s Horn Plantain (_Plantago coronopus_), a common
enough weed, especially on waste patches near to the sea.
On the underside of the narrow blades are produced the sori; these are
present in the form of lines on either side of the mid-veins. At first
they are covered with scale-like indusia, but as the sporangia ripen the
protecting shield is thrown aside. Finally, the capsules spread out so as
to cover almost the whole of the underside of the blade.
The Forked Spleenwort finds its home in the fissures of rocks and in the
crevices of old walls. It is, however, a rarity, less uncommon in the
North than in the South of England. Now and again it has been recorded in
great abundance in a particular spot, and it is difficult to understand
why the species is not more wide-spread in its distribution. The Forked
Spleenwort can be grown in gardens if suitable rock crevices are
provided. The plant is an evergreen species.
_Asplenium germanicum._ It is uncertain what is the derivation of the
specific name _germanicum_; in some quarters it has been said that the
name was given owing to the fact that the Fern is a very popular one in
Germany, though whether this is a true explanation cannot be stated with
certainty. The Alternate-leaved Spleenwort.
Public-domain text, read in full here on John Shaqi.
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