The colour of the frond is a clear glossy olive-brown, in drying changing to 

 black. The substance is thick and coriaceous, very rigid when dry. 



One of the more local of the Australian Fucoids, not having 

 been found, except on the western coast, in the neighbourhood 

 of Swan River. 



The genus Carpoglosmm, as understood by J. Agardh, in- 

 cludes three species, all Australian. It is nearly allied to Myrio- 

 desvia, from which it differs in its pinnate, not dichotomous, 

 ramification, and in having the fructification more concentrated 

 in the lateral phyllodia. Through C. confluens it makes a near 

 approach to Fucodium, from which its midribbed frond divides 

 it. But indeed many of the so-called " genera " into which the 

 Fucacea have been subdivided, scarcely differ from each other 

 by more than artificial characters ; and, in a 'revision of the 

 family, I should feel disposed to restore the old genus Fucus of 

 the elder Agardh to nearly the limits assigned by him. The 

 three groups of species just mentioned might well fall into it. 



Fig. 1. Caupoglossum quekcifolium, — the natural size. 2. A fertile phyl- 

 lodium. 3. Section through the same. 4. A tuft of antheridia. 5. An 

 antheridium : — -all more or less magnified. 



