CRYPTOGAMIA ALGM. gS^ 



almofl: cylindrical. About thefe ftalks, at in- 

 tervals of one quarter of an inch, grow in 

 - , .. whirls three, four, or five fubulate branches, 



an inch or more long, but gradually fliortened 

 . ' in each whirl towards the fummit of the ftalk. 



Thefe branches are befet with fetaceous lig-a- 

 ■ .' ; v riients, growing alternate, or without order. 



The frudifications are fmall red feeds, vifible with 

 ' • -^ a microfcope in the ligaments and fummits of 



:-■ : , the branches. 



j^lum 42. F. fronde filiform! fimplici fubfragili opaca. Ltn. 

 Syji. nat. edit. 13. />. 815. Sp.pl. 1631. (Boccon. 

 muf. I. p. i-]i. /. 7. /. 9. Petiver. Gaz. t. 91, 

 :: /. 5. opt.) 



Thread Fucus, or Sea Laces. Anglis, 

 Upon the fea rocks, and waving under the water 

 .. .• like long ftrings, frequent on many parts of 



the coaft. 

 The fubllance of this is opaque and cartilaginous, 

 but not difiicuk to be broken. The color when 

 recent a dull olive-green, when dry, fufcous, 

 or nearly black ; and, when expos'd for fome 

 time on the fliores to the fun and air, it be- 

 comes yellow, ftraw-color'd, or white. 

 It confifts only of a fimple, unbranched, naked, 

 cylindrical lloilk, three or four yards long, more 

 L . or lefs ; from the fize of a large fiddle-Itring to 



Q^q q 2 that 



