Plate VII. 



Fig. 25. LAMINARIA DIGIT ATA. Var. Stenophylla. 



Colour. Dark brown. 

 Substance. Tough; leathery. 



Character of Frond. A flat, leafy expansion; ribless; growing from a stem. 

 Stem, slender, soft, glossy. Expansion^ wedge-shaped below; above, 

 cut into a few narrow slips {segments), longer than the stem. Root 

 fibrous. 



Measurement. From 3 to 6 feet long. 

 Fructification. As before. 



Habitat. The Orkney Islands. North and west of Ireland. Probably else- 

 where, but overlooked. 



Dr. Harvey considers this a remarkable variety of Lain, digitata, if not a 

 separate species. He says the Orkney kelp-men distinguish the two byname; 

 this being called "Tangle;" the common L, digitata, "Cury." French botanists 

 make a species of it. 



Fig. 26. LAMINAEIA BULBOSA. 



Colour. Dark; opaque; reddish or greenish brown; glossy; when dry, black. 

 Substance. Tough; leathery. 



Character of Frond. A flat leafy expansion; ribless; growing from a stem. 

 Stem, flat, with a thin waved margin; once twisted at the base; 

 rising from a roundish, hollow, rough bulb; throwing out numerous, 

 stout, fibrous roots. Ecqjansion, deeply cut into many narrow slips 

 [segments) . 



Measurement. Stem, a foot or more long. Expansion, from 6 to 12 feet 

 long, and 1 to 2 feet wide. 



Fructification. Minute seeds [sjjores) imbedded here and there in the surface 

 of the frond, thickening it, and forming cloudy patches. 



Habitat. Our coasts generally. In deep water, frequent. 



Popularly called " Sea Furbelows," from the waved margins. The bulb has 

 been found a foot in diameter. 



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