A Monograph of the Genus Alaria. 113 



specimens from Rupeecht are now kept in the Agardhian Herbarium 

 at Lund, one annexed with A. iwcelonga Kjellm. and the other 

 with A. angusta Kjellii. In Grönlands Lam. och Fucaceer, p. 23, 

 J. Agakdh notes that Rupeecht's specimens come quite near A. 

 esculenta. Another specimen distributed by Rupeecht under Phas. 

 alatum is to be found in the Botanical Museum of Berlin, and to 

 me it seems to belong to A. valida Setch. et Kjellm. 



The name Fucus alatus estabUshed by Caegill in 1620 may 

 be the first botanical name proposed for the plant. This is why 

 Ruprecht has chosen to call the plant Phasganon alatum, and a 

 lengthy history of the name is given by him in his Tange des 

 ochotischen Meeres, p. 266-377. To cast away the name Alaria 

 esculenta so commonly known to us, giving the priority to a pre- 

 Linnean ambiguous description, seems by no means acceptible. 



The name Fucus pinnatm Gunx. is found placed in a syno- 

 nymous position under various species by different writers. In 

 Grönlands Lam. och Fucaceer, p. 23, J. Agaedh refers to it under 

 A. muscefoUa, regarding it as a synonym of Laminaria muscefoUa 

 De la Pyl. In lUustr. Alg., p. 11, Postels and Rupeecht men- 

 tion the name under A. esculenta f. pinnatißda. This forma is dis- 

 cussed by Rupeecht in Tange des ochotischen Meeres, p. 364, 

 under Fhas. alatum var. plnnatifida, and he seems to hold the view 

 that the pinnatL'ly cleft blade is indifferent to the age of the plant 

 but is a pecuharity of the species or forma. In the latter work 

 he excluded Gunnee's species as a synonym of the forma men- 

 tioned in Illustr. Alg. The original specimens in the herbarium 

 of the Academy of Science of Petrograd show that they are to be 

 separated into more than two species, simply having the pinnately 

 cleft blades as a common character. 



