412 ALGÆ TASMANICÆ. 
filiformibus distichis sensim attenuatis ramellis brevissimis 
simplicibus furcatisve incurvis densissime velatis, invo- 
lucris pedicellatis e foliolis dichotomis arcte conniventibus 
constantibus tetrasporas ad fila multifida affixa foven- 
tibus, articulis ramellorum diametro equalibus v. sesqui- 
longioribus. | 
Has. Tasmania, Mr. Gunn.—Stems 6-8 inches high} as 
thick as small twine, twice pinnated. Colour dark-red. It 
- resists fresh water much better than any other species of 
the genus. 
97. Griffithsia sefacea, Ag. 
Has. Tasmania, abundant. Mr. Gunn. 
98. Griffithsia corallina, Ag.—G. flabelliformis, Harv. Le. p. 
450. 
Has. Tasmania, Mr. Gunn.—We fear that the Tasmanian 
form, constituting the G. flabelliformis, Harv., is not suf- 
ficiently distinct from some European states of the species. 
99. Callithamnion pellucidum, Harv. — Spyridia p 
Harv. l. c. p. 449. 
Has. Tasmania, Mr. Gunn. 
100. Callithamnion cruciatum, Ag.—Harv. l. c. p. 453. 
Has. Tasmania, Mr. Gunn. 
101. Callithamnion Plumula, Ag. : i £s 
Has. Tasmania, Mr. Gunn. Parasitical on Lictoria tasi- a 
Jormis. : 
102. Callithamnion /Jatissimum, Harv. l. c. p. 452. 
Haz. Tasmania, Mr. Gunn. o 
103. Callithamnion angustatum, nobis; filis capillaribus dense l 
. emspitosis pellucide articulatis tenuibus pluries bipinnatim 
|... decomposite-ramosissimis roseis, divisuris omnibus — ue. 
. ternis, plumulis (v. ramulis penultimis) virgatis strictis. en 
longissimis circumscriptione anguste-lanceolatis pinnatis : 
erectis, pinnulis abbreviatis patentibus. furcatis v. secunce — 
pinnulatis, tetrasporis globosis solitariis apicem versus - 
pinnularum sessilibus, articulis primariis diametro oop. : 
secundariis 5plo, ultimis triplo longioribus. — 
Han. Tina dc. Gunn.—Densely tufted, 2-4 inches 
| + ie in Ls parts decim jointed. > 
