OF SOUTH AUSTRALIA. 
237 
SONDERELLA Schmitz. 
The one species. 
Bonder ella linearis (Harv.) Schmitz. 
Holdfast a minute disc. Fronds 6 cm. to 20 cm. high, 2 mm. to 3 mm. in 
breadth, linear, obtuse, proliferous from the slender midrib in leaflets of 
similar form. The lamina is composed of hexagonal cells, set in obliquely 
transverse lines. Cystocarps and tetrasporangia borne on small sporophylls 
springing from the midrib, the cystocarps single, sessile on the midrib, the 
tetrasporangia in a single row on each side of the midrib. Colour brownish- 
red, darker on drying. Substance membranaceous, so that the plants do not 
adhere to the mounting paper. 
South Australia (Eastern Bays) and Victoria. 
CLAUDE A Lamouroux. 
Claudea elegans Lamouroux. 
Frond stipitate, stipe stout filiform, merging into the marginal rib of a 
unilateral flat open network. The main frond 30 cm. to 45 cm. high is' beauti- 
fully curved, bearing the reticulated fringe on the convex side of the 
Fig. 101 . — Claudea elegans: a, portion of a frond; b, 
portion of a branch bearing ceramidia; c, 
a metamorphosed leaflet bearing a cera- 
midium; d, spores from the same; e, 
portion of the network bearing stichidia; 
f, stichidium, between sections of two 
bars; g, tetraspores. (After Harvey.) 
