VoL. 30 No. 4 
BULLETIN 
TORREY BOTANICAL CLUB 
APRIL, 1903 
Regeneration in Plants* 
By KARL GOEBEL 
The phenomena of regeneration in plants have been known 
much longer than those in animals. For cuttings of twigs and 
the separated leaves of many plants to become independent indi- 
viduals, or to give rise to them, is an every-day occurrence. The 
anatomical changes which take place are, in general, well known. 
On the other hand, relatively few investigations have been made 
as to the factors which set up regeneration and determine the kind 
of organs and the manner of their formation in regeneration. It 
is evident without further discussion that a knowledge of these 
facts would be of the greatest importance for every theory of or- 
ganic development and heredity, and in brief for all investigations 
which might be classed under ‘“‘ causal morphology.” It is nec- 
essary to group the facts from some general point of view before 
a theory can be formulated. I have already attempted this some 
time since, and will give in the following a brief restatement of 
the conclusions already reached together with the results of some 
new experiments. It will be profitable to repeat some of my pre- 
viously formulated propositions + in a somewhat modified form. 
1. The phenomena of regeneration imply a development of 
dormant or latent rudiments. These rudiments (Av/agen) are 
present as vegetative points (embryonic tissue) and are set into 
* Read by invitation before the Botanical Society of America, at Washington, De- 
cember 31, 1902. 
+ Goebel, K. Ueber Regeneration im Pflanzenreich. Biol. Centralb. 22 : 385-397, 
417-438, 481-505. 1902. See also discussion and literature in Goebel, Organo- 
graphie der Pflanzen, 35-43. 1808. 
[The preceding number of the BULLETIN, Vol. 30, No. 3, for March, 1903 (30: 
133-196, portrait, pl. 7-10), was issued 8 Ap 1903.] 
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