ALGÆ TASMANICÆ. 405 
Fam. 4. SPHÆROCOCCOIDEÆ, J. Ag. 
54. Rhodymenia (Calophyllis) coccinea, Harv.—Sphærococcus 
australis, Harv. l. c. p. 445. 
Has. Tasmania, Mrs. Smith and Mr. Gunn. I am obliged 
to alter the specific name, as there is another R. australis, 
Sond., a different species. 
55. Rhodymenia (Calophyllis) Lamberti, Grev. 
Has. Tasmania, Mr. Gunn. A single specimen only.—This 
is a very little understood plant, and known to few ; the 
specimens which commonly pass under this name be- 
longing very frequently to R. variegata, which greatly 
resembles it, but which is a thinner and more membranous 
Species. 
46. Rhodymenia (Calophyllis) fmbriata, Hook. fil. et Harv. ; 
fronde purpurea tenuissime membranacea venulis ramosis 
tenuissimis percursa flabelliformi profunde laciniata, la- 
ciniis cuneatis vage furcatis, margine ramentis creberrimis 
pusillis dentatis polymorphis fimbriato, apicibus laceris. 
Has. George Town, Mr. Gunn, (1328.)—This has strikingly 
the habit of R. Hombroniana, but a much thinner frond, 
Composed of fewer layers of cells, and the system of 
internal veinlets, resembling those of Pollezfenia pedicel- 
lata, distinguish it from any state of that species. Unfor- 
tunately the fruit is unknown. 
57. Rhodymenia corallina, Grev. ? 
Has, Port Arthur, Dr. Jeannerett. Imperfect specimens. 
.. 58. Rhodymenia palmata, var. Sarniensis, Grev. 
Haz. Port Arthur, Dr. Jeannerett, Dr. Lyall. 
59. Rhodymenia membranacea, Harv.—Halymenia membra- 
nacea, Harv. l. c. p. 448. ios 
B. Tasmania, Mr. Gunn. 
60. Gracilaria lichenoides, Grev. ?—Harv. 1. c. p. 445. 
Han, Tasmania, Mr. Gunn. Imperfect specimens. - 
6L. Hypnea (Dicranema) furcellata, nobis; fronde compressa ee 
. Pluries dichotoma, axillis angustis rotundatis, ramis erectis, 
.. picibus obtusis, 3 OT AE Mascus j 
