Francis E. Lloyd —232— Carnivorous Plants 



studied by Goebel. This group is represented in the New World 

 by U. peltata which, Hke some cognate species in Africa, has peltate 

 leaves, their petioles bearing traps. 



U. orbiculata, U. striatula, U. brachiata, U. multicaulis and pos- 

 sibly some others are minute Asiatic and African species, most epi- 

 phytic in wet moss on leaves, tree-trunks or on rocks. It was on U. 

 orbiculata that Goebel first noted the peculiar back-facing position 

 of the stolon leaves and the coordinate position of the axillary buds 

 (Goebel, 1891). This species produces a number of minute spherical 

 pearl-like tubers strung along its stolons, probably for water storage 

 (Goebel). U. longiciliata (America) is unique so far as the structure 

 of the trap is concerned. It is a typical small terrestrial species sim- 

 ilar in habit to U. subulata. 



U. simplex (S. W. Australia) exhibits a rare peculiarity^ of pro- 

 ducing its scape directly from the margin of a leaf, a habit which 

 it may have in common with its relatives U. lateriflora (S. E. Aus- 

 traha) and U. calliphysa (Borneo) (Staff 19 14), another species 

 still undescribed from India, and one from Ceylon. Of over a hun- 

 dred complete plants of U. simplex {23 — 7) exhumed from a sandy 

 substrate not far from Albany, W. A. not one showed a different 

 origin of the scape, though specimens of U. lateriflora, from near 

 Sydney, N. S. W., showed the primary origin to be from the seedHng 

 in the usual way, as in U. Barnesii mihi in ms. {22 — 27). Their 

 traps are minute, of similar structure, but display specific difierences. 



U. globidariaefolia and a few similar species are American. They 

 are terrestrial, rather large and become perennial by their stout, 

 tough stolons. Aside from their considerable stature, growing as they 

 do among the grasses and reeds of such habitats as the Aripo Savannah 

 of Trinidad, they display no striking pecuharities beyond the pos- 

 session of distinctive traps. 



U. Kirkii is an African species with apparently few associates, 

 if any, and has a distinct form of trap. It is of the usual terrestrial 



habit. 



U. nana and U. Lloydii, small terrestrial species, are unique as 

 regards the character of the traps. Both S. American, each appears 

 to share its peculiarities with no other species yet known. 



It will be the purpose of a succeeding chapter to consider the 

 mechanism of the trap and the various peculiarities of the various 

 kinds of traps characteristic of the above mentioned types. 



— {References on p. 26 f) — 



