386 67. Chorda. 2. TH ALASSIOFHYTiE. Pl.cell.apk . 
XLXI. 67. CHORDA. Lamouroux. Rope-weed. 
Thallus round, tubular, not branched; holdfasts shield- 
like; sporidia in clublike threads, scattered on the surface 
of the thallus. 
1. Chorda filif or mis. Threadlike rope-weed. 
Thallus round, not in the least branched, narrower at 
each end ; when old twisted up spirally. 
Fucus chordam referer.s teres praelougus, Raii Syn. 40, 3. 
Focus Filum, Lin. S. P. 1631 ; Turn. Hist. 86; Engl. Bot. 2487. 
Fucus Tendo, Esper, 22. 
Ceram i u m Filum, Roth Cat. 1, 147. 
Chorda Filum, StacJch. Ner. Brit. Introd. 24 ; Lamour. Thai. 27. 
Chordaria, Link in Schrad. Journ. 1809, 8. 
Chordaria Filum, Agardh Syn. 13. 
Flagellaria Filum, Nsr. Brit. ed. 2. Intr. 9. 
Sea-laces. 
Sea-shore; annual. 
Thalli aggregate, from 1 to 20 feet long, often spirally 
twisted; tubes divided on the inside; sporidia pearshaped. 
2. Chorda tomentosa. Woolly rope-weed. 
Thallus cylindrical, not branched, naked at the bottom, 
in all other parts covered with a very manifest slippery 
downiness, formed of jointed fibres. 
Chorda tomentosa, Lynghye Hydr. Dan. 74. 
Fucus Filum, var. Engl. Bet. 2487. 
Sea-shore. 
XLIII. 68. CHORDARIA. Link. Thong-weed. 
Thallus solid, round, threadlike, branched ; sporidia 
scattered in clublike threads on the surface of the thallus. 
Chordaria flagelliformis. Whiplike thong-weed . 
Thallus slender, slippery ; branches numerous, slightly 
2-rowed, very long, simple or forked, blunt. 
Fucus flagelliformis, FI. Dan. 650 ; Turn. Hist. 85 ; Engl. Bot. 1222. 
Conferva dichotoma, FI. Dan. 358. 
Cerarnium longissimum, Schum. Enum. 2, 111. 
Gigariina flagelliformis, Lamour. Thai. 48. 
Chordaria flagelliformis, Agardh Disp. 12. 
Sea-shores. 
Thalli aggregate, 6 to 9 inches long. 
|3. tor tilis. Thallus small, slender ; branches pinnate; 
twigs spreading, clawlike, not branched, close. 
Conferva, 1172; Lin. Suec. 4,36. 
Chordaria flagelliformis minor. Agardh Syn. 13. 
Fucus flagelliformis tortilis, Turn. Hist. 85. 
