. The algae-vegetation of the Faero?ese coasts, with remarks on the phyto-geography. Marine algae. 756 seen how the Ininina of the Laminaria hijperborea was sucked into the waves and kept swaying- to and fro when they rushed over tlie rock; it is certainly exposed to a very strong pull here. But Laminaria hijperborea is excellently constructed for resisting this attack of the sea, its stalk being bolh thick and slifT at the bottom but becoming thinner and more elastic towards the apex, so that the flexible lamina can easily follow the motion of the water. It is firmly attached to the bottom by
. The algae-vegetation of the Faero?ese coasts, with remarks on the phyto-geography. Marine algae. 756 seen how the Ininina of the Laminaria hijperborea was sucked into the waves and kept swaying- to and fro when they rushed over tlie rock; it is certainly exposed to a very strong pull here. But Laminaria hijperborea is excellently constructed for resisting this attack of the sea, its stalk being bolh thick and slifT at the bottom but becoming thinner and more elastic towards the apex, so that the flexible lamina can easily follow the motion of the water. It is firmly attached to the bottom by aid of the strong haptera. It is. '<^ tm. Fig. IGO. Laminaria hijperborea with numerous epiphytical Rlwdynienia palmata rising above the surface of the sea at low tide. Illustration from the neighbourhood of Thorshavn. (F. B. phot.) a well-known fact to anyone who has dredged among the Lami- naria hijperborea, that only by a very strong pull, or by the teeth of the dredge cutting through the haptera more often through the stalk itself, can the plant be torn from the bottom. I have often tried from a boat to pull up the plants that grew in shallow water, but I have hardly ever succeeded in loosening them without cutting through the haptera. Thus the plant may resist a very strong pull without being detached from the bottom. Its gregarious growth also helps to protect it from the attack of the sea. This association covers large areas with an almost unmixed growth of its characteristic alga. It would therefore look very uni- form but for the very luxuriant subvegetation of epiphyles, mainly the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Børgesen, Frederik, 1866-1956. Copenhagen, Printed by H. H. Thiele
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinealgae, bookyear
