25. V esiculifeea flavescens Hass.
Plate LIII. Fig. 9.
Char. Filaments about equal in size to those o f V. crispa.
Cells fo u r or fiv e times as long as hroad. Sporangia circular,
lodged in cells o fth e same form,
llah. Penzance: Mr. Ralfs.
This species I have only received from Mr. Ealfs and Mr.
J enner.
26. V esiculifera afeinis Ilass.
Plate LIII. Fig. 1.
Char. Filaments about equal in size to those o f V. vernalis.
Cells y?W(? or six times as long as broad. Sporangia circular,
lodged i?i cells lohich are slightly ovate and protuberant
at the sides.
Hab. Cheshunt: A. H. H.
Not an uncommon species, perhaps, but a variety of V.
vernalis.
27. V es iculifera hexagona Hass.
Plate LIII. Figs. 11, 12.
Char. Filaments somewhat stouter than those o f V. æqualis.
Cells three or fo u r times as long as hroad. Sporangia circular,
contained in inflated cells o f an hexagonal form.
Hab. Cheshunt : A. II. II.
This IS a very distinct little species, and not uncommon :
a variety occurs with filaments considerably finer. This may
also be distinct.
28. V es iculifera du bia Hass.
Plate L III. Fig. 14.
Char. Filaments o f the same size as those o f V. hexagona.
1
Í
uninflated. Cells usually fiv e times as long as broad.
Sporangia circular, lodged in inflated cells o f a somewhat
hexagonal form, but much larger than those o f V. hexagona.
Hah. Penzance: Mr. Ralfs.
This species approaches rather closely to V. hexagona, from
which, however, I think that it is distinct.
29. V esiculifera Mulleri Hass.
Plate L III. Fig. 10.
Char. VYiSxmmAs, more slender than those o f V. fasciata. Cells
fu lly fo u r times as long as broad. Sporangia spherical,
contained in inflated cells o f a regularly globidar form.
Vesiculifera Mulleri Hassall, in Annals and Mag. of Nat.
Hist., vol. X. p . 393.
Hab. Cheshunt: A. II. II. Rusthall Common and
Hawkhurst: Mr. Jenner.
This species is by no means common; I have never met
with it but once.
30. V es iculifera B osch Hass.
Plate LII. Figs. 3, 4, 5.
Char. Filaments slender. Cells about six times as long as
broad. Sporangia oval, contained in greatly enlarged cells
o f the same form.
Prolifera Boscii M. Léon le Clerc, loc. cit. t. 25. f. 5. V.
elegans Hass., Annals, vol. x. Conf. tumidula, Fng.
Bot. 1670.
Hah. Henfield: Mr. 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 he regarded
as varieties of this or distinct species.