455 
L. fceroensis with its hollow stem being the one which comes 
most near to L. longicruris , I will now go more fully into the points 
which, in addition to the above-mentioned characters, separate 
these two species. In his notes on the occurrence of muciparous 
canals in the Laminariacece Guignard 1 observes that Laminaria 
longicruris has muciparous canals both in the lamina and in the 
1 Guignard: Observations sur l’appareil mucifere des Laminariacees (Annales 
des sciences nat., VII ser. Bot., t. 15, 1892). 
Fig. 86. Laminaria fceroensis nov. sp. f . typica. From Sundene. With sorus. (C. Thornam del.). Vi4 • !• 
