Cuap. X VIL] UTRICULARIA MINOR. 345 
of the longer processes. The development of the quadrifids 
is very liable to be arrested. I have seen a bladder 31, of 
an inch in length including only primordial papille; and 
another bladder, about half its full size, with the quadrifids 
in an early stage of development. 
As far as 1 could make out, the bifid processes are de- 
veloped in the same manner as the quadrifids, excepting that 
the two primary terminal cells never become divided, and 
only increase in length. The glands on the valve and collar 
appear at so early an age that I could not trace their develop- 
ment; but we may reasonably suspect that they are developed 
from papilla like those on the outside of the bladder, but 
with their terminal cells not divided into two. The two 
segments forming the pedicels of the glands probably answer 
to the conical protuberance and short footstalk of the quadri- 
fid and bifid processes. JI am strengthened in the belief that 
the glands are developed from papille like those on the 
outside of the bladders, from the fact that in Utricularia 
amethystina the glands extend along the whole ventral surface 
of the bladder close to the footstalk. 
UrricuLaRIA VULGARIS, 
Living plants from Yorkshire were sent me by Dr. Hooker. This 
species differs from the last in the stems and leaves being thicker or 
couser; their divisions form a more acute angle with one another; 
the notches on the leaves bear three or four short bristles instead of 
one; and the bladders are twice as large, or about + of an inch (5:08 
mm.) indiameter. In all essential respects the bladders resemble those 
of Utricularia neglecta, but the sides of the pelistome are perhaps a 
little more prominent, and always bear, as far as I have seen, seven or 
eight long multicellular bristles. There are eleven long bristles ou 
each antenna, the terminal pair being included. Five bladders, con- 
taining prey of some kind, were examined. The first included five 
Cypris, a large copepod and a Diaptomus; the second, four Cypris; 
the third, a single rather large crustacean; the fourth, six crustaceans ; 
and the fifth, ten. My son examined the quadrifid processes in a 
bladder containing the remains of two crustaceans, and found some of 
them full of spherical or irregularly shaped masses of matter, which 
were observed to move and to coalesce. These masses therefore con- 
sisted of protoplasm. 
UTRICULARIA MINOR. 
This rare species was sent me in a living state from Cheshire, through 
the kindness of Mr. John Price. The leaves and bladders are much 
