184 THE PITCHER OF CEPHALOTUS FOLLICULARIS. 
midrib is produced as a tendril-like structure somewhat after the 
fashion of. the cirrhose prolongation of the leaf-apex in Gloriosa. 
The pitcher he views as a glandular excavation on the internal 
aspect of this “excurrent midrib” somewhat below its extremity. 
With regard to this determination a few remarks may no 
out of place. 
If Hooker’s representation of the early development of the leaf 
of Nepenthes be examined, and especially his figure of the first 
— the young leaf, the base of which is already some- 
at dilated and a little concave towards the inner surface. If the 
sidive of Sarracenia represents a leaf-blade, it seems scarcely 
—.. to resist the conclusion that the same must hold good for 
pe 
An apparent difficulty, however, arises as to the ma np of 
the flat expansion below the cirrhose support of the pite 
At first I was disposed to look upon all the parts se the 
a the flat expansion—as representing the — ; 
but a mination of the remarkable leaf-forms occurring in 
certain Crot tons now inclines me to adopt a view virtually identical 
with that of Hooker, although perhaps not exactly in the shape 
contemplated by) him 
plan called Croton tae and C. picturatus—pro- 
bably both of oe monstrous forms of C. angustifolius—we have, 
interrupted leaves the distal portion of the lamina—borne upon 
the ‘‘ excurrent midrib’’—is dev ra peltate- Epo, into an 
oblique funnel of varying depth.* (Plate 220, figs. 
he closeness of the parallel which may be fod awn vapor this 
and, although analogical reasoning of this kind must be employed 
with ga _ seems highly proba ble that in Nepenthes we have to 
deal with a the a of which is interrupted in the middle of 
its course is hincaice — ag - midrib, and that, while the 
proximal portion of the lamin ins its typical form of a flat 
expansion, ~ distal oaniaaek Passed peltately expanded into 
a funnel or pitcher 
cum leaves hg — to, it is to be noted that the 
vaca. expansion, while sometimes simply narrowed into the 
vitnatel portion, as in Plate 220, fig. 1, is more frequently 
— towards its e rece in ay poliate ig . “— the 
* Especially in C. picturatus, 
