the herbarium. Sudstance very soft and gelatinous, soon decomposing. In 
drying it closely adheres to paper. 
wn ne eeeeeeeeeeee 
The genus Corynospora, founded on the old Callithamnion 
pedicellatum (Phyc. Brit. t. 212), has been separated from Calh- 
thamnion by Prof. Agardh on account of the difference in its 
tetrasporic fruit; the tetraspores of Callithamnion having the 
tripartite structure common to the Ceramiacee, those of Cory- 
nospora having an undivided nucleus. ‘Two other Australian 
species, besides the present, belong to Corynospora. Our C. 
australis 1s readily known from the more slender states of C. 
pedicellata by the very slender terminal ramuli. As yet, I have 
seen very few specimens of it. 
Fig. 1. CoryNnospora austRaLis,—the natural size. 2. One of the articula- 
tions of a large branch. 38. Apex of a branch, with lateral, forked, atte- 
nuated ramuh. 4. Fertile ramulus, with tetraspores. 5. A tetraspore :— 
the latter figures magnified. 
