64 A CATALOGUE OF THE BRITISH MARINE AL.G1E 



Gen. 1G5. GIGARTINA Stackli. 



G. Teedii Lainour. Coasts of Devon (Elberry Cove, Torbay) 

 and the Channel Islands (Jersey). Very rare. 



G. aciciilaris Lainour. Coasts of Cornwall (Mousehole) ; Devon 

 (Ilfracombe, Plymouth, Bovisand, Lupton Cove, Torquay, Sid- 

 mouth) ; Hants (Isle of Wight). Ireland: Valentia, Co. Kerry; 

 Dungarvan Bay, Co. Waterford ; Belfast Bay, Co. Down; Kilkee, 

 Co. Clare. Channel Islands (Jersey, Guernsey, Alderney). Very 

 rare. 



Gr. pistillata Stackli. Coasts of Cornwall (Scilly Islands, St. 

 Minver, Padstow, St. Ives, Mount's Bay, Peuzance, Lizard, Whit- 

 sand Bay) and the Channel Islands (Jersey, Guernsey, Alderney). 

 Very rare. 



G. stellata Batt. (= Fucus stellatus Stackhouse in Withering, 

 Bot. AIT. ed. 3, vol. iv. p. 99, excl. syn. omn. (1796), e spec. orig. in 

 Herb. Linn. Soc. ; F. mamillosus Good. & Woodw. in Linn. Soc. 

 Trans, vol. iii. p. 174 (1797); Giyartina inamUlosa J. Ag.). (Note. 

 Withering gives the following very accurate account of this spe- 

 cies: "F. cartilaginous, forked, greatly widening upwards; sur- 

 face thick-set with excrescences bearing fructifications on their 

 extremities. Plant 4 inches high, beautifully hedge-hogged with 

 excrescences, sometimes on one, sometimes on both surfaces. They 

 are upright, partly cylindrical, fleshy, bearing the fructifications 

 embedded in their tops. Its colour is brown, purple, or bright 

 green. Mr. Stackhouse." While the second fasciculus of his 

 AVm's Britannica was " under preparation for the press," Stackhouse 

 supplied Withering with " references to the plates and likewise with 

 characters and specimens of the nondescript species ' it was to 

 contain. Withering published descriptions of these "nondescripts " 

 in the third edition of his Systematic Arrangement of British Plants 

 (vide vol. iv. p. 101), which appeared in 1796, the year before the 

 publication of Observations on the British Fuci by Goodenough and 

 Woodward. He, however, makes no mention of Stackhouse's 

 Fucus echinatits, a figure of which appears side by side with that of 

 F. stellatus on Plate xii. of the Nereis ; and it seems, from the above 

 quoted description, that he rightly considered it identical with 

 F. stellatus. I have examined the specimen of his F. stellatus 

 presented to the Linnean Society by Stackhouse, and it un- 

 doubtedly belongs to the present species, the fronds being covered 

 with the characteristic cystocarps.) - - f. genuina (= F. echinatits 

 Stackh.). Coasts of Somerset, Cornwall, Devon, Dorset, Hants, 

 Sussex, Kent, Yorks., Durham, Northumberland, Cheshire, Isle of 

 Man, Wales, Scotland, Ireland, and the Channel Islands. Common, 

 -f. acuta Good. & Woodw. (incl. f. linearis Turn.). Coasts of 

 Cornwall (Falmouth) ; Devon (Sidmouth) ; Kent (Deal) ; North- 

 umberland (Berwick). Not uncommon. - - f. prolifem Turn. (incl. 

 f. stellata Turn.). Coasts of Cornwall (Falmouth, Looe), Kent 

 (Folkestone), &c. Not uncommon. - -f. incurvata (Turn.). Coasts 

 of Devon, Cornwall, and Dorset (Weymouth). Kather rare. 



