374 62.Gigart. 2. THALASSIOPHYTA. Pi. cell. aph. 
__ Fucus asparagoides, Woodw, in Tr. Lin. Soc. 2, 29. 
Sphzrococcus asparagoide:, Agardh Disp, 17. 
Plocamium asparagoides, Lamour. Thal. 
Sea-shore. 
d. Thallus threadlike, equal; tubercles lateral, wartlike, 
formed of jointed threads. 
7. Gigartina fastigiata. Even-lopped plum-weed. 
Thallus cartilaginous, threadlike, 2-forked, level-topped, 
angle of the fork biuntish, tip acute; éubercles irregular, 
hemispherical, sessile, lateral. 
“Fucus rorundus, Gmel. Fuci, 110; Engl. Bot.1739; Turn, Hist. 5. 
Fucus radiatus, Gooden. Tr. Lin. Soc. 3, 202. 
Fucus fastigiatus, Stackh. Ner. Brit. 15. 
Fucus caprinus, Fl, Norv. 1, 96. 
Chordaria rotunda, 4gardh Syn. 12. 
Furcellaria rotunda, Lyngbye Hydr. Dan. 49. 
Furcellaria fastigiata, Lamour. Thal. 
Sea-shore; perennial; September to February. 
Lhallus deep brownish purple, white when exposed to 
the weather; ¢ips rather blunt. , 
8. tenuior. Thallus with the extreme segments long and 
linear; tips bluntish. 
y. fastigiata, Thallus very slender, about 2 inches high. 
Fucus fastigiatus, Lin, S. P. 1631. 
8. Gigartina plicata. Pleated plum-weed. 
Thallus horny, cylindrical, uniform, very much branch- 
ed; branches mostly simple, clustered, entangled, horizon- 
tal, slightly one-sided; éips blunt; tubercles irregular, he- 
mispherical, sessile. 
Fucus trichoides nostras aurei coloris, ramulorum apicibus furcatis, 
Raii Syn. 45, 26. 
Fucus coralloides erectus, Raii Syn. 51, 57. 
Fucos plicatus, Huds. Fl. Angl. 589; Turn. Hist. 180; Engl. Bot. 1088, 
not of Esper. 
Fucus albus, Fl. Dan. 408. 
Ceramium plicatum, Roth Cat. 2, 162, 
Gigartina plicata, Lamour. Thal. 48. 
Sphzrococcus plicatus, 4gardh Disp. 17. 
Sea-coast ; perennial; October to April. 
Thallus tufied, stiff, wirelike, entangled. 
8. elongata. Thallus rather forked ; branches long, 
straight, level-topped. 
Fucus longissimus, Esper, 44, 
