Bums and Hedden, Conditions influencing regenerationof hypocofcyl. 
a bud with one leaf 12 bucls witli two leaves, 126 buds with 
three leaves at the first node. Subsequent nodes produced tfie 
normal nnmber of leaves. 
Tlie same fact is true but less marked in Linum and 
Antirrhinum majus. Many of tlie first plant produce the first 
adventitious buds witli three leaves while the second bud on the 
same individual had only two at the first node. 
With AntJiirrhinum , 9 in 51 produced three leaves, one in 
51 produced four while the others produced two, on the first 
node. 
Experiments. 
A. Uninjured plants. It may be best perhaps to give 
result of experiments and observations on uninjured seedlings. 
Previous reference has been made to the facts tliat potted plants 
and plants in places produce these buds in some species while 
in others the phenomenon is a regulär occurrence on a large 
number of individuals. 
Big. 3. Antirrhinum majus. 
Two seedlings grown in a damp chamber without support. In bocli cases 
„ adventitious “■ buds were produced a. cotyledons, b. „adventitious“ buds. 
The number of shoots is always few and their position 
varied, but the langer per cent is always found near the base. 
The three plants named produced these buds when kept in a 
crock in a damp chamber in the following per cent. Linum 
7 %, Linaria 19 %, and Antirrhinum 30 °/o. Usually only one 
bud was developed and the near the base. 
Plants of Antirrhinum do not stand erect and often bend 
over on the ground. In this case buds develop on the upper 
side of the horizontal part. Eight plants were placed in a damp 
chamber and tied to wires so that they grew erect, and eight 
plants placed in the same conditions but without support. The 
latter plants developed in every case buds while none of those 
erect did so. 
