OF SOUTH AUSTRALIA. 
359 
Lasiothalia (?) superbiens (Harv.) De Toni. 
= Callithamnion superbiens Harvey. 
Frond wide, caulescent; stem for a long distance stupose, hirsute, the 
upper branches free, pinnate, irregular ; pinnae spreading in all directions, 
lanceolate; pinnellae alternate, on the elongate rachis, which is glabrous 
and prominent, almost all regular and divaricate ; secondary pinnellae long 
and attenuated. Tetrasporangia on inner side of the incurved pinnellae, 
sparse and sessile. Colour red, very soft. Adheres to paper. 
Victoria (Western Port). 
GATTYA Harvey. 
Frond distichous; pinnatifid, hollow, tubular, with a membranous peri- 
phery, and an articulated, monosiphonous axile filament. Axile filament 
inarticulate, callithamnoid, emitting at each joint whorled, dichotomous 
ramelli, whose tips, cohering together, form a membranous periphery of 
the frond. 
Gattya pinnella Harvey. 
Fronds rising from prostrate surculi, which are closely attached at 
intervals by minute discs to the surface of some alga, afterwards free and 
erect, 2 cm. to 4 cm. high, alternately or irregularly branched. The 
branches are perfectly distichous, of unequal lengths, long and short 
occurring together, and all linear in outline and deeply pinnatifid. Pinnules 
Fig. 179 . — Gattya pinnella : a, plant; b, portion of 
frond; c, apex of a pinnule cut open 
to show axile filament; d, cross- 
section of same; e, one of the dicho- 
tomous, horizontal ramelli. (After 
Harvey.) 
