110

Scientific Memoirs by

TABLE I.—General Table of Results of section of Distal Pinnules of
Mimosa pudica —concluded.

No. of
Experi-
ment.		 Result.
91 Leaf in shade and plant drenched with dew .—Pause; centripetal action in six
pairs of pinnules; pause; action in the fifth pair of pinnules beneath those
which had previously acted; pause; action in the fifth pair below those which
had last acted; no further action in the cut pinna or elsewhere; primary pul-
vinus readily responsive to direct impulse.
92 Conditions as in No. 91 —Pause; action in seven successive pairs of pinnules;
partial action in the pinnules at the base of the pinna; spread of centripetal
action along the distal part, but action not extending to the area of basal
action; action of the primary pulvinus, and extreme depression; action in one
or two pinnules on one side of the base of the other distal pinna; no further
result.
93 Conditions as in No. 91 .—Very slow and very incomplete action in the cut pinna;
action in the primary pulvinus, and extreme depression; no further result.
94 Conditions as in No. 91 .—Very slow action in the tip of the cut pinna; very slow
action in the basal portion; slow, centripetal action in the central portion;
action in the primary pulvinus, and extreme depression; no further result.
95 Conditions as in No. 91 .—Results as in No. 94 save that several of the central
pinnules of the cut pinna failed to act.
96 Conditions as in No. 91 .—Action in the cut pinnules; pause; slight action in one
or two pinnules at scattered intervals along the course of the cut pinna; no
further result; primary pulvinus responding readily to direct impulse.
97 Conditions as in No. 91 .—Action in the cut pinnules; action in the primary pul-
vinus; incomplete centripetal action in the cut pinna; no further result.
98 Conditions as in No. 91 .—Fairly complete action throughout the cut pinna save
in three pinnules at the base; no further result; primary pulvinus readily
responsive to direct impulse.
99 Conditions as in No. 91 .—Results as in No. 97.
100 Conditions as in No. 91 .—Incomplete action throughout the cut pinna; no further
result; primary pulvinus readily responsive to direct impulse.

     A total of one hundred experiments, in only six of which there was any exten-
sion of movement beyond the injured leaf.