Abstract
The investigation of which the results are embodied
in this paper was undertaken in an. attempt to gain an
insight into the problems of the propagation of Clematis
by means of stem cuttings.
In order to be able to interpret the phenomena of
regeneration induced by isolating portions of a plant, it
is essential to investigate the normal anatomy in some
detail. In any severed portion of a plant the first signs
of abnormal cell activity in the tissues depart only slightly
from the normal, and unless they can be detected and identified at their initiation it is impossible to define exactly
the time and place of origin of the new growth.
Accordingly the first part of the paper will deal with
the normal stem -anatomy of the genus. The second part,
with the changes in the anatomy resulting from vegetative
propagation, and the third part with some experiments in
propagation.