Cuap. II. ADILUMIA. 77 
sensitive; some of the later ones were so, but only 
towards their extremities, which were thus enabled to 
clasp sticks. This could be of no service to the plant, 
as these leaves rose from the ground; but it showed 
what the future character of the plant would have 
been, had it grown tall enough to climb. The tip 
of one of these basal leaves, whilst young, described 
in 1hr. 36m. a narrow ellipse, open at one end, and 
exactly three inches in length; a second ellipse was 
broader, more irregular, and shorter, viz., only 24 
inches in length, and was completed in 2hrs. 2m. 
From the analogy of Fumaria and Corydalis, I have no 
doubt that the internodes of Adlumia have the power 
of revolving. : 
Corydalis claviculata—This plant is interesting 
from being in a condition so exactly intermediate 
between a leaf-climber and a tendril-bearer, that it 
might have been described under either head; but, 
for reasons hereafter assigned, it has been classed 
amongst tendril-bearers. 
Besides the plants already described, Bignonia 
unguis and its close allies, though aided by tendrils, 
have clasping petioles. According to Mohl (p. 40), 
Cocculus Japonicus (one of the Menispermacee) and a 
fern, the Ophioglossum Japonicum (p. 39), climb by 
their leaf-stalks. 
We now come to a small section of plants which 
climb by means of the produced midribs or tips of 
their leaves. 
