Dwellers of the sea and Dwellers of the sea and shore . dwellersofseasho00crow Year: 1935 Marine Groves and Gardens 123 ing thick trunks, numerous branches, and leaflike appendages. Seaweeds also exhibit considerable diversity in color, and this feature has caused their being divided into four great groups. These groups, or subclasses, a'*e the blue-green alga? {Cyanophycea) ^ grass-green algae {Chlorophyceo'), the brown algcE {Phteophycea) ^ and the red algae {Rhodophyce^e). These are again sub- divided into various genera and species, and the num- MACROCYSTIS; A LAMINARIAN SEAWEED. ber o
Dwellers of the sea and Dwellers of the sea and shore . dwellersofseasho00crow Year: 1935 Marine Groves and Gardens 123 ing thick trunks, numerous branches, and leaflike appendages. Seaweeds also exhibit considerable diversity in color, and this feature has caused their being divided into four great groups. These groups, or subclasses, a'*e the blue-green alga? {Cyanophycea) ^ grass-green algae {Chlorophyceo'), the brown algcE {Phteophycea) ^ and the red algae {Rhodophyce^e). These are again sub- divided into various genera and species, and the num- MACROCYSTIS; A LAMINARIAN SEAWEED. ber of the latter so far known and classified is said to be several thousands. As is the case with shore animals, the most favorable time for collecting or observing the range and distribu- tion of seaweeds is during low tide. A walk along almost any shore at this time will show that these humble forms are as particular in their choice of locality and character of their neighborhood as are the higher plants of the land. Just at the high spring water mark will be seen some sturdy types of a short, stubby growth, which seem equally at home out of the
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