Simmons, Remarks about the Relation s of tlie Floras etc. 179 
Families and 
genera 
North Atlantic 1 
Warmer Atlantic || 
North Pacific 
| Warmer Pacific | 
Indian Ocean 
South temperate 1 
and antarctic Seas 1 
Families and 
genera 
North Atlantic 1 
Warmer Atlantic || 
North Pacific 
Warmer Pacific || 
Indian Ocean 
South temperate 
and antarctic Seas 
* Agardhiella 1. 
X 
X 
X 
Ceramium 
X 
X 
X 
X 
X 
X 
Turnerella 
X 
X 
Rhodocliorton 
X 
X 
p 
? 
X 
Euthora 
X 
X 
(Gloiosiphonia- 
ceae) 
— 
— 
— 
— 
Rhodophyllis 
X 
X 
• 
X 
X 
(Grateloupia- 
Sphaerococcaceae 
ceae) 
— 
* Gracilaria 
X 
X 
X 
X 
X 
X 
Dicmontiaceae 
— 
— 
— 
— 
— 
* Hypnea 
X 
X 
X 
■ 
X 
Dumontia 1. 
X 
X 
X 
Rhodymeniaceae 
Dilsea 
X 
X 
Rliodymenia 
X 
X 
X 
X 
X 
X 
Nemastomaceae 
— 
* Lomentaria 
X 
X 
X 
X 
Furcellaria 1. 
X 
* Plocamium 
X 
X 
X 
X 
X 
X 
Rhizopli yllida- 
ceae 
Halosaccion 
X 
X 
Polyides 1. 
X 
D elesseriaceae 
Squamariaceae 
Delesseria 
X 
X 
X 
X 
X 
Petrocelis 
X 
X 
(B onnemaisonia- 
ceae) 
Cruoria 
X 
X 
X 
Rhodomelaceae 
Cruoriella 
X 
* Laurencia 
X 
X 
X 
X 
X 
X 
Peysonellia 
X 
X 
X 
X 
* Chondria 
X 
X 
X 
X 
X 
X 
Rhododermis 
X 
Polysiphonia 
X 
X 
X 
X 
X 
X 
Corallinaceae ■ 
— 
Rhodomela 
X 
X 
? 
p 
Clathromorphum 
X 
X 
Odemthalia 
X 
X 
Litliothamnion 
X 
X 
X 
X 
X 
X 
Ceramiaceae 
Corallina 
X 
X 
X 
X 
X 
X 
* Callithamnion 
X 
X 
X 
X 
X 
X 
Hildenbrandtia 
X 
X 
X 
X 
X 
Ptilota 
X 
X 
Antithamnion 
X 
X 
X 
X 
X 
X 
12 * 
