452 Mac far lane. — Observations on Pitchered 
as Goebel's figures prove. They are traceable in the four 
genera now reviewed as early as, or soon after, indications of 
the pitcher-invagination appear ; and in Nepenthes Goebel 
acknowledges that what is an originally continuous leaf-blade 
in earlier development, becomes by intercalary growth 
separated into a pair of pitcher wings and basal wings (p. 103). 
He takes exception to these being termed leaflets, but in 
view of what has been said above I must adhere to the 
explanation given. Bower objects to the lateral flaps of 
a Nepenthes- pitcher being viewed as leaflets since they 
originally form parts of two ‘ smooth flanges in very early 
stages of development.’ Not merely the early stages of 
development, but all succeeding ones are of value, and that 
these flaps should become isolated distally from the proximal 
part of the flanges is proof to me that while the lid-leaflets 
of Nepenthes are now early and sharply isolated from the 
flanges, the pitcher-flaps retain connexion for a longer period 
and by a broader base. This view is quite supported by the 
fact that in N. Rajah , N. Curtisii , &c., the basal parts form 
a distal peltation demarcating them, even if the long tendril 
did not, from the pitcher-flaps, which themselves, in all 
pitchers that I have examined, exhibit similar distal peltation 
in front of the orifice, as do the lid-leaflets throughout their 
entire history. 
It is not necessary therefore for me ‘ to show that distinct 
rounded outgrowths do appear on the wings of the young 
leaf’; all that is required is, what actually occurs, viz. the 
localized outgrowth on the front of the pitcher of portions 
that are ultimately quite distinct from those of the base. 
No attempt is made by Goebel to explain the two swellings 
in Nepenthes that arise in line with the laminar flanges, and 
which unite to form the lid, though these exactly correspond 
to the lobes that he figures (PL XIX, Fig. 6) on the de- 
veloping leaf of Darlingtonia. In a footnote (p. 102) he 
says, that £ nicht jede Einbuchtung an einem Blattrande als 
Anlage einer Gliederung des Blattes betrachtet werden kann. 
Es ware dazu, da die Entwicklungsgeschichte fur Nepenthes 
