the Briti/Jj Fuci, whh puriicular Defer ipiions of each Specks. 167 



35. FUCUS PINNATIFIDU3. 



F. fronde cartilaginea ramofa ; ramis patentibus fub-duplicato- 

 pinnatifidis, ramulis obtufis callofis. Herb. Buddie^ p. 18. 

 . «. 7, 8. Petiverf p. 25. «. i, 2. Uveda/e, p. la. n. 4. Act. 

 Tarf. 17 1 2. />. 34. /. 4. yi 6. Mar. H^. Oxon. iii. ^. 646. 

 / 15. L 8./. 2. 

 Fucus Ofmunda. Gmclirty p. ic,i,. t. i6. f. ^. 

 F. pinnatifidus. Gmelln, p. 156. /. 16. yi 3. 

 F. pinnatifidus. FL Ang, p. ^^u FL Scot. p. g^^. Withering^ 



vol.^.p. 247. 

 F. multifidus. Fl. Ang. p. 581. Withering^ vol. 3. /. 248. 

 F. filicinus. Fl. Scot. p. 954. 

 Habitat in rupibus et faxis marinis frequens. 

 Radix callus expanfus ex quo cauliculi pluriml conferti oriuntur 

 — Frons cartilaginea plana avenia ramofior, ramis et ramulis difti- 

 chis oppofitis alternifque — Ramuli breves, modo truncati, fepius 

 apice obtufo rotundato, et prse tuberculis innatis, ut videtur, callofo. 

 Rami pro habitu et loco, pinnatifidi, 2 — 3plicato-pinnatifidi et 

 multifidi — Altitudo i — 5uncialis — Subfiantia fub-cartilaginea — Color 

 variat flavefcens, olivaceus, et ex olivaceo ruber — Fruclificatio tuber- 

 cula ad ramulorum apices. 



F\xz\x% pinnatifidus varies very much with refpeft to the divTion 

 of its frond. Hence botanifts have imagined it to contain different 

 fpecies, and have been at no fmall pains to afcertain their refpedlive 

 limits. As it happens to be a very common plant, frequent have 

 been our opportunities of obferving it. After very careful and re- 

 peated examinations, we can venture to pronounce that Xhz pinnati- 

 fidus and multifidus of Hudfon and the pinnatfidus and filicinus of 



Lightfoot 



