Scientific American Supplement, No. 447, July 26, 1884Various
Science
Scientific American Supplement, No. 447, July 26, 1884
Various
Science -- Periodicals
Till the plants are above two years of age, they are liable to die from
drought or the attacks of ants, and during 1878 many thousands died from
these causes. At the end of the fourth year some proprietors begin to
collect the quill bark by the method of coppicing.
It is feared by some that, should this new venture be successful, it
will prove a dangerous rival to the plantations of India, Ceylon, and
Java, and lower the price of bark considerably.--_Jour. Society of
Arts_.
* * * * *
FERNS.
_N. Davallioides Furcans._--Among the many crested ferns in cultivation,
this, of which the annexed is an illustration, is one of the most
distinct; so different indeed it is from the type, that it is
questionable if it really is a form of it; the most essential
characteristic, that of the fructification at the extreme edge of the
lobes of the pinnæ, is altogether absent, and the whole habit of the
plant is also thoroughly distinct. It is of equally robust growth,
but its handsomely arching fronds, which are from 3 feet to 4 feet
in length, are produced in great abundance from a central tuft or
agglomeration of crowns. Its most distinct characteristic is the
furcation of the pinnæ, which are all of the same dimensions, whether
sterile or fertile; they are all opposite and closely set along the
mid-rib, whereas those of N. davallioides are set much further apart.
In the barren pinnæ which are only situated on the lower portion of the
frond, and which generally are only few in number, the furcation is
rudimentary; in the fertile pinnæ it is twice and even three times
repeated in the extremities of the first division, becoming more complex
toward the point of the frond, where it often forms quite a large
tassel, whose weight gives the fronds quite an elegant, arching habit.
On that account this plant is valuable for growing in baskets of large
dimensions, in which it shows itself off to good advantage, and never
fails to prove attractive. Although it produces spores freely, it is
best to propagate it by means of the young plants produced from rhizomes
in the ordinary way, on account of the extreme variations which take
place among the seedlings, a small percentage only of which are
possessed of the true character of the parent plant. Stove.--_The
Garden._
[Illustration: NEPHROLEPIS DAVALLIOIDES FURCANS.]
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