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MEMOKANDA. 59
our pages (Vol. III. p. 297) by Mr. Carruthers for all the genera of
that tribe. Iii his iuvestigatious, Dr. Lindberg discovered that Bhjttia
of Endlicher was identical with Gray's older genus Pallavacinia, and
in accordance with the nile always acted ou by botanists, he rejects
the newer name. We notice that Milde approvingly refers to tlie cor-
rection in a recent number of ' Hedwigia/ but he seems to have over-
looked the fact, that this correction had already been made in that
very journal in an abstract of Mr. Carruthers's paper by Gottsche. It
is true that Gottsche disapproved of accepting Gray's names, because
of the numerous changes vvhicli their adoption woidd necessitate. The
uniform practice must, however, in the end prevail, and future workers
entering ou the study of the Eepaticce, without the prejudices in favour
of the present nomenclature which must exist in the mind of one who
has so largely formed it as Dr. Gottsche has, will restore the names of
Gray, and accord to him that credit which is certainly h.is due, but
which, even the botanists of this generation seem very loath to bestow.
MEMORANDA.
Pinus Banksiana and Pinus rubra.—It is remarkable that two of oiir most
beautiful native trees, the uames of which head this article, should not be in
cultivation. On referring to botanical works, it is clear no one knows how
beautiful they are. Of Pinus BanJcsiana, Dr. Gray says, "a low sti-aggling
bush or a small tree, from two to twenty feet high." Michaux, Nuttall,
Richardson, Loudon, and others give about the same character of it. This is
as much as may be said of it in the outskirts of its proper locality. Eecently
we had the opportunity of examining it through what we suppose the heart of
its home. The woods between Lake Michigan and Lake Superior are mostly
composed of Pinus Banksiana, and are generally from twenty to forty feet
high,—at Escanauba we handled one which was probably sixty feet high and
four and a half to five feet in circumference,—httle inferior in height to a very
fine specimen of Pinus rubra alongside of it. Richardson says, towards the
North Pole the thickness of the trunk is out of usual proportion to the breadth
of the branches. Not so here. The trunk had a very long tapering slender
appearance as compared with the branches. Occasionally specimens would
be seen standing by themselves ; and nothing could be prettier than the slender
straight stems, clothed with its slender feathering. We have nothing from
Europe or Asia that would make a more beautifiil ornamental tree than the
Gray or Banksian Pine of this region. The Red Pine is very much like the
Austi-ian in appearance. Growing in thick woods, no one can appreciate their
beauty; but occasional specimens, standing by themselves, show that the