860 POLYPOMPHOLYX. [Chap. XVIII. 



The bladders do not differ much from those of the two last 

 species. The antenna;, which are united for a short dis- 

 tance at their bases, bear on their outer surfaces and sum- 

 mits numerous, long, multicellular hairs, surmounted by 

 glands. The processes within the bladders are quadrifid, with 

 the four diverging arms of equal length. The prey which 

 they had captured consisted of entomostracan crustaceans. 



Utricularia muUicaulis (Sikkim, India, 7000 to 11,000 

 feet). The bladders, attached to rhizomes, are remarkable 

 from the structure of the antenna;. These are broad, flat- 

 tened, and of large size; they bear on their margins multi- 

 cellular hairs, surmounted by glands. Their bases are 

 united into a single, rather narrow pedicel, and they thus 

 appear like a great digitate expansion at one end of the blad- 

 der. Internally the quadrifid processes have divergent arms 

 of equal length. The bladders contained remnants of arti- 

 culate animals. 



[Utricularia cornuta, Michx. (United States). This 

 species has been studied by A. Schimper in America, and is 

 the subject of a short paper in the * Botanische Zeitung.' ' 

 It grows in swampy ground, and presents a remarkable ap- 

 pearance; the aerial part of the plant seems at first sight to 

 consist of nothing but almost naked flower-stems a foot in 

 height, bearing from two to five large yellow flowers. U. cor- 

 nuta has no roots, its underground stem or rhizome is much 

 branched and bears numerous minute bladders.. The 

 branches of the rhizome throw up here and there grass-like 

 leaves which cover the ground without having any apparent 

 connection with the flower-stem. The structure of the blad- 

 ders is not in any way remarkable, resembling in its general 

 features that of the European species. The bladders gener- 

 ally contain organic remains; out of 114 only 11 contained 

 no debris. The contents include diatoms and small animals, 

 worms, rotifers, small crustaceans; and the hairs lining 

 the inside of the bladders give evidence of having absorbed 

 matter from the decaying mass. F. D.] 



POLYPOMPHOLYX. 



This genus, which is confined to Western Australia, is 

 characterised by having a "quadripartite calyx." In other 



[" Notlzen liber InBectfressende Pflnnzen," 1882, p. 241.] 



