442 UTRICULARIA NELUMBIFOLIA. Cuar. XVIIL 
species of certain closely allied genera, had the same 
essential structure as those of Utricularia montana, and 
whether they captured prey, I asked Prof. Oliver to send 
me fragments from the herbarium at Kew. He kindly 
selected some of the most distinct forms, having entire 
leaves, and believed to inhabit marshy ground or 
water. My son, Francis Darwin, examined them, and 
has given me the following observations; but it 
should be borne in mind that it is extremely difficult 
to make out the structure of such minute and delicate 
objects after they have been dried and pressed.* 
Utricularia nelumbifolia (Organ Mountains, Brazil).— 
The habitat of this species is remarkable. According 
to its discoverer, Mr. Gardner,t it is aquatic, but “is 
only to be found growing in the water which collects 
in the bottom of the leaves of a large Tillandsia, that 
inhabits abundantly an arid rocky part of the moun- 
tain, at an elevation of about 5000 feet above the level 
of the sea. Besides the ordinary method by seed. it 
propagates itself by runners, which it throws out from 
the base of the flower-stem; this runner is always 
found directing itself towards the nearest Tillandsia, 
when it inserts its point into the water and gives 
origin to a new plant, which in its turn sends out 
another shoot. In this manner I have seen not less 
than six plants united.” The bladders resemble those 
of Utricularia montana in all essential respects, even to 
the presence of a few minute two-armed glands on the 
valve. Within one bladder there was the remnant of 
the abdomen of some larva or crustacean of large size, 
* Prof. Oliver has given(‘Proc. but he does not appear to have 
Linn. Soc.’ vol. iv. p. 169) figures paid particular attention to these 
of the bladders of two South organs. 
American species, namely, Utri- t ‘Travels in the Interior of 
cularia Jameooniana and peltata; Brazil, 1836-41,’ p. 527 
