4i5 
Insectivorous Plants ( Part //). 
on the dorsal flaps there may be as many as 4-6. These 
lower glands resemble corresponding ones of Sarracenia , but 
towards the pitcher-orifice they become more complex, each 
being made up of 8-1 2 cells. Interspersed amongst them are 
upward-directed bifurcated hairs, figured by Zipperer. The 
outer surface of the rim is well provided with glands and hairs. 
In young pitchers the inner lid-surface has numerous rather 
small glands, but in adults many of these become of great 
size and complexity, consisting of from 30-70 cells. Each 
gland lies in a depression bounded by thick-walled neighbour- 
cells, the upper of which may overhang it, so that they are 
quite like many Nepenthes lid-glands (PI. XIX, Fig. 8). The 
hairs also which grow out among them are very delicate, or 
may be entirely absent at the top of the lid (Fig. 7). This 
area is sharply marked off from a region that must be regarded 
as a union of the attracting and conducting surfaces of Sarra- 
cenia, since it is provided with glands, and with hairs of very 
variable size. Succeeding to this is a smooth area (Fig. Jc.), 
which in the absence of glands and hairs, and in the wavy 
outline of the epidermal cells composing it, completely reminds 
one of the conducting surface in Nepenthes . The lowest area 
bears short, greatly-thickened epidermal hairs, which Bentham 
has figured and described. This is the true detentive surface. 
That Heliamphora should be a good fly-catcher might be antici- 
pated from the quantity of honey secreted by the alluring glands, 
and even more by the attractive glands, where the dried secre- 
tion often appears as a white sugar-like concretion on the 
surface ridge ; from the number and length of the conducting 
hairs ; and from the presence of a smooth conducting surface. 
Bentham in his memoir inclines to regard the number caught 
as insignificant, but from specimens examined in the Kew 
Herbarium it appears in this respect to compare favourably 
with any Sarracenia. From the foregoing one learns how 
curiously the peculiarities of Sarracenia and Nepenthes are 
blended in this interesting type. I can scarcely suppose that 
this is accidental — rather may we see in it an example of true 
genealogical relationship. The extremely isolated distribution 
