206 CYSTOSPERME^. 



25. Vesiculifera flavescens Hass. 

 Plate LIII. Fig. 9. 



Char. Filaments about equal in size to those of V. crispa. 

 Cells four or Jive times as long as broad. Si3orangia cir- 

 cular, lodged in cells of the same form. 

 Hab. Penzance : 31r. Ralfs. 



Tliis species I have only received from Mr. Ralfs and Mr. 

 Jenner. 



26. Vesiculifera affinis Hass. 

 Plate LIII. Fig. 1. 



Char. Filaments about equal in size to those of V. vernalis. 

 Cells ^ue or six times as long as broad. Sporangia cir- 

 cular, lodged in cells lohich are slightly ovate and protube- 

 rant at the sides. 

 Hab. Clieshunt : A. H H. 



Not an uncommon species, perhaj)s, but a variety of V. 

 vernalis. 



27. Vesiculifera hexagona Hass. 

 Plate LIII. Figs. 11, 12. . 



Char. Filaments somewhat stouter than those of V. cequalis. 

 Cells three or four times as long as broad. Sporangia cir- 

 cular, contained in inflated cells of an hexagonal form. 

 Hab. Cheshunt: A. H. H. 



This is a very distinct little species, and not uncommon : 

 a variety occurs with filaments considerably finer. This may 

 also be distinct. 



28. Vesiculifera dubia Hass. 



Plate LIII. Fig. 14. 



Char. Filaments of the same size as those of V. hexagona. 



