410 ALGÆ TASMANICÆ. 
Has. Tasmania, common. 
86. Ceramium Deslongchampsii, Gaill. 
Has. Tasmania, Mr. Gunn. 
87. Ceramium nodosum, Kutz.—C. diaphanum var., Harv. 
l. c. p. 449. 
Has. Tasmania, Mr. Gunn. 
88. Ceramium ramulosum, nobis; fronde capillari sensim 
attenuata dichotoma, axillis inferioribus distantibus su- 
perioribus approximatis, ramis ad fere omnia articula 
ramulos tenues breves patentes simplices furcatosve emit- 
tentibus, apicibus strictis acutis; articulis inferioribus dia- 
metro 3-4-plo longioribus, zoni distinctis angustis, inter- 
stitiis pellucidis elongatis ; tetrasporis unilateralibus erum- 
pentibus; favellis subterminalibus involucro polyphyllo 
subtensis. 
Has. Tasmania, Mr. Gunn. Nearly allied to C. nodosum. 
89. Ceramium (Echinoceras) monile, nobis; fronde setacea 
elata dichotoma moniliformi, ramulis lateralibus tenui- 
capillaribus pluris dichotomis fastigiatis, apicibus patenti- 
bus obtusis, articulis inferioribus diametro duplo longiori- 
bus zonis decurrentibus interstitiisque angustissimis, 
superioribusque zonis distinctis interstitiisque diametro 
equalibus, aculeis paucissimis brevissimis biarticulatis in 
ramulis ultimis solitariis unilateralibus externis; tetra- 
sporis solitariis inarticulis turgidis aculeatis immersis p 
vellis involucro polyphyllo subtensis. 
dem Tasmania, Mr. Gunn.—With the size and much of the 
habit of C. rubrum, this species approaches C. acantho- Eu 
motum in character. - It is a very handsome raa We 
rs Du 
90. Ballia Mein, bue. 
: Mi. Tasmania, Mr. Gunn, &c. 
91. Wrangelia plumosa, Harv. 1. c. p. 450. 
Has. George Town, Mr. Gunn. a 
. 92. Wrangelia crassa, nobis; feeds pellucide articulata 
= | crassa pinnata v, bipinnata, pinnis pinnulisque PP A 
>. Quoque es ramellos binos oppositos e | 
