VESICULIFERA. 207 



unhiflated. Cells usually Jive times as long as broad. 

 Sporangia circular, lodged in inflated cells of a someiohat 

 hexagonal form, but much larger than those of V. hexa- 

 gona. 

 Hab. Penzance: Mr. Ralfs. 



This species approaches rather closely to V. hexagona, from 

 which, liowcver, I think that it is distinct. 



29. Vesiculifera Mulleri Hass. 

 Plate LIII. Fig. 10. 



Char. Filaments more slender than those of V. fasciata. Cells 

 fullg four times as long as broad. Sporangia spherical, 

 contained in inflated cells of a regularly globular form. 

 Vesiculifera JSIulleri Hassall, in Annals and Mag. of Nat. 



Hist., vol. X. p. 393. 

 Hab. Cheshimt : A. H. H. Rusthall Common and 

 Hawkhurst : Mr. Jenner. 



This species is by no means common ; I have never met 

 with it but once. 



30. Vesiculifera Bosch Hass. 

 Plate LII. Figs. 3, 4, 5. 

 Char. Filaments slender. CeUs about six times as long as 

 broad. Sporangia oval, contained in greatly enlarged cells 

 of the same form. 

 Prolifera Boscii INI. Leon le Clerc, loc. cit. t. 25. f. 5. V. 

 elcgans Hass., Annals, vol. x. Conf. tumidula, Eng. 

 Bot. 1670. 

 Hab. Henfield: 3Ir. Borrer. Rusthall Common: Mr. 



Jenner. 

 There is not a more distinct or prettier species than this 

 in the genus. 



I do not know whether figs. 4, 5. pi. 52. are to be regarded 

 as varieties of this or distinct species. 



