164 
THE SEAWEEDS 
Gelinaria Harvey ana J. Agardh. 
With the same structure but very densely compoundly pinnate, with 
narrower segments. These are crowded and fleshily solid, contrasting with 
the fewer, bolder, broader segments of G. ulvoidea. 
Western Australia (King George’s Sound) ; South Australia (Encounter 
Bay, Investigator Strait, Eastern Bays), Victoria. 
Family RHODOPHYLLIDACEAE Schmitz. 
CONSPECTUS OF SUBFAMILIES. 
j Cystoclonieae. 
Auxiliary cell in a particular protuberance emitting branchlets radiating 
in all directions. 
Rhodophyllideae. 
Auxiliary cell evolving numerous bundles of branchlets. 
Solierieae. 
Auxiliary cell within the cavity of the fertile nucleus emitting a thick 
protuberance bearing at the apex numerous bundles of branches. 
Subfamily Cystoclonieae (Kutzing) Schmitz. 
GLOIOPHYLLIS J. Agardh. 
Thallus flat, irregularly forked-laciniate, composed of two strata, the 
medullary of two layers of very large cells interwoven with thin rhizoids, 
the cortical of coloured cellules in one or two layers. Cystocarps external, 
containing within a pericarp of radiating filaments a compound nucleus 
formed by bundles of spore threads radiating from a central basal placenta. 
Tetrasporangia immersed in the cortical stratum, zonately divided. 
Gloiophyllis Barkeriae (Harvey) J. Agardh. 
Frond cuneate at base, expanded upwards, deeply divided, the divisions 
variously cleft. Cystocarps thickly scattered over the surface of the larger 
laciniae. Height 20 cm. to 40 cm. Breadth of segments 2 cm. to 5 cm. 
Colour blood-red. 
South Australia (Eastern Bays) and Victoria. 
Gloiophyllis Engelhardtii Reinbold. 
A richer ramification than in preceding. Cystocarps globose on the 
margin of the upper segments. 
South Australia (Guichen Bay). 
Subfamily Rhodophyllideae Schmitz. 
RHODOPHYLLIS Kutzing. 
Frond flat, membranous, dichotomously or pinnately decompound, mostly 
margined with leafy or slender processes, composed of two strata, the medul- 
lary of large roundish empty cells, mostly in two layers, the cortical of 
coloured cellules in one or few layers. Cystocarps, marginal and external, 
containing within a pericarp of radiating filaments, a compound nucleus, 
