Pl, cell.aph. 2.THALASSIOPHYT. 31. Griffit. 329 
Corallina confervoides gelatinosa alba, geniculis crassiusculis pelluci- 
dis, Dillen in Raii Syn. 34, 8. 
Conferva marina, gelatinosa, corallinz instar geniculata crassior, Dil- 
ven Musc. 33. 
Conferva geniculata, Ellis Ph. Tr. 57, 425. 
Conferva coralloides, Lin. S. P. 1636. 
Conferva corallina, Lin. Syst. Veg. 973; Dillwyn Conf. 98; Engl. Bot. 
3815. 
Callithamnion corallinum, Lyngbye Hydr. Dan. 126, 
Sea-shore; July. 
Thallus 2 or 3 inches high; thece sessile. 
3. Griffitsia larbata. Bearded griffiths. 
Thallus forked, branched, pale crimson, fibrous at the 
tip; ¢wigs opposite, many-cut, very slender; joints thick= 
ened above, 5 times as long as broad. 
Conferva florifera, Ellis Ph. Tr. 57, 425. 
Conferva barbata, Engl. Bot. 1814; Dillw. Syn. 15. 
Griffitsia barbata, Agardh Disp. 28. 
Sea-shores; July. 
Thallus 2 or 3 inches high; lower branches divaricating ; 
thece lateral, often sessile. 
4. Griffitsia multifida. Many-cut griffiths. 
Thallus branched, red; twigs opposite or ternate, dis- 
tant, many-cut; joimts cylindrical, 4 or 5 times as long as 
broad. 
Conferya multifida, Engl. Bot. 1818, not of Hudson; Dillw. Syn. 15. 
Griffitsia multifida, dgardh Disp. 28. 
Thalli several, 3 to 5 inches high, fugacious rose-colour ; 
branches unequal. 
5. Griffilsia equisetifolia. Horsetail griffiths. 
Thallus very much branched, thick, purplish red; 
branches attenuated at both ends; éwigs in whirls, tiledlike, 
short, many-cut, covering the stem entirely; joints 3 to 
5 times as long as broad. 
Conferva imbricata, Huds. Fl. Angl. 603. 
Conferva multifida, Huds. Fl. Angl. 603. 
Conferva equisetifolia, Lightf. Scot. 984; Engl. Bot. 1479; Dillw. 
Conf. 54. 
Sea-shore. 
Thallus 3 or 4 inches long, branched, bright red when 
young; purplish brown when older; Llranches cylindrical, 
alternate. 
