CONSPECTUS OF VOLUME III 



Series III.— MELANOSPERME^. 

 Frond leathery or membranaceous, forming a compact cellular substance. 



Fam. I. FUCACE^. — Olive-coloured, inarticulate sea-weeds, whose spores 

 are contained in spherical cavities of the frond. Containing : 



Genus 1. — Halidiys. 



2. — Cystoseira. 



3. — Pycnophycus. 



4. — Fiicus. 



5. — Himantlialia. 



Fam. II. SPOROCHNOIDE^ Olive - coloured, inarticulate sea -weeds, 



whose spores are attached to external, jointed filaments, which are either 

 free or compacted together into knob-like masses. Containing; 



Genus 1. — Desmarestia. 

 2. — Arthrocladia. 



3. — Sporochnus. 



4. — Carpomitra. 



Fam. III. LAMINAKIE^. — Olive-coloured, irarticulate sea-weeds, either 

 forming superficial, cloud-like patches, or coveiing the whole surface of the 

 frond. Containing : 



Geuus 1. — xilaria. 



2. — Laminaria. - j, 3 3 ^C? 



3.— Chorda. 



