160 CAMPANULARIIDJE. 



Genus CAMPANUL ARIA, Lamarck (in part) . 



Der. Campanula, a bell. 



LAOMEDEA, Lamouroux (in part). 



? SILICULARIA, Meyen, Nov. Acta &c. xvi. 183-1*. 



ORTHOPYXIS, Agassiz (for some of the species), N. H. U. S. iv. 355. 



LAOMEDEA, Agassiz, N. H. U. S. iv. 352 ; Allman, Ann. N. II. for May 1864. 



GENERIC CHARACTER. Stems simple or branched, rooted 

 by a filiform stolon ; hydrotheca bell-shaped and hyaline, 

 without operculum ; polypites ivith a large, cup-shaped pro- 

 boscis ; gonotliecce borne on the stems or on the creeping 

 stolon ; yonophores containing fixed sporosacs, which mature 

 their products within the capsule. 



THE genus Campanularia as now restricted includes no 

 form that would not come under the Lamarckian definition 

 of it ; it embraces, however, certain portions of Lamouroux's 

 Laomedea. Agassiz has formed the genus Orthopyxis for 

 one or two species in which the sporosac is furnished with 

 branching gastrovascular canals; the modification, how- 

 ever, is too trivial to stand as the sole criterion of a genus. 

 There is no important difference between the sporosac with 

 these canals and the sporosac without them, so long as they 

 are not subservient to the purposes of free existence. 



Section a. "With simple and unbranched stems. 

 1. C. VOLUBILIS, Linnaeus. 



SERTULAKIA VOLUBILIS, Linn. Syst. (12th ed.) 1311. 



" SMALL CLIMBING CORALLINE WITH BELL-SHAPED CUPS," El 'Us, Corall.24,pl. xiv. 



fig. a, A. 

 CAMPANULARIA VOLUBILIS, Alder, North, and Durli. Cat. in Trans. Tynes. 



R C. iii. 125, pi. iv. fig. 7. 



Plate XXIV. fig. 2. 



STEMS rising at intervals from the stolon, which is some- 



* This genus is founded on two Campanularian species of simple habit, 

 bearing a general resemblance to Clytia John&toni or Campanularia volubilis. 



