See page in:
1859
1860
1861
1866
1869
1872

Compare with:
1860
1861
1866
1869
1872

seems to me 1859 1860
is 1861 1866 1869 1872

←Subtitle not present 1859 1860 1861 Summary. 1866 1869 1872
have the same general characters as species, for they 1859 1860
OMIT 1861 1866 1869 1872

the occurrence of such links cannot affect the actual characters of the forms which they connect; and except, 1859 1860
them together, and the occurrence of such links does not affect the character of the forms which they connect; and except, 1861 1866
OMIT 1869 1872

we shall see how this may be explained, and how the lesser differences between varieties
will
will
tend to increase into the greater differences between species.
There is one other point which seems to me worth notice. Varieties generally have much restricted ranges: this statement is indeed scarcely more than a truism,
for,
for
if a variety were found to have a wider range than that of its supposed parent-species, their denominations
would
ought to
be reversed. But there is
also
also
reason to
believe
believe,
that
the
those
species which are very closely allied to other species, and in so far resemble varieties, often have much restricted ranges. For instance, Mr. H. C.
Waston
Watson
has marked for me in the well-sifted London Catalogue of
Plants
plants
(4th edition) 63 plants which are therein ranked as species, but which he considers as so closely allied to other species as to be of doubtful value: these 63 reputed species range on an average over
6.9
6.9
of the provinces into which Mr. Watson has divided Great Britain. Now, in this same
Catalogue,
catalogue,
53 acknowledged varieties are recorded, and these range over
7.7 pro-
7.7
7.7
vinces;
provinces;
whereas, the species to which these varieties belong range over
14.3
14.3
provinces. So that the acknowledged varieties have
very
very
nearly the same restricted average range, as have
the
those very
closely allied forms, marked for me by Mr. Watson as doubtful species, but which are almost universally ranked by British botanists as good and true species.
Finally,
then,
then,
varieties have the same general characters as species, for they cannot be distinguished from
species,—except,
species,—
except,
except,
first,
firstly,
by the discovery of intermediate
linking
linking
forms
forms;
forms,
linking
and,
and
the occurrence of such links cannot affect the actual characters of the forms which they connect; and except,
secondly
secondly,
by a certain
indefinite amount
amount
of