. The elements of botany for beginners and for schools. Plants. 166 CRYPTOGAMOUS OR FLOWERLESS PLANTS. [SECTION 17. the plant itself or its essential organs, that they have to be elaborately described in separate books and made subjects of special study. 504. Nevertheless, it may be well to try to give some general idea of what Algae and Lichens and Fungi are. Linnaeus had them all under the orders of Algae and Fungi. Afterwards the Lichens were separated; but 545 546 547. of late it has been made most probable that a Lichen consists of an Alga and a Fungus conjoined. At least it must be so in
. The elements of botany for beginners and for schools. Plants. 166 CRYPTOGAMOUS OR FLOWERLESS PLANTS. [SECTION 17. the plant itself or its essential organs, that they have to be elaborately described in separate books and made subjects of special study. 504. Nevertheless, it may be well to try to give some general idea of what Algae and Lichens and Fungi are. Linnaeus had them all under the orders of Algae and Fungi. Afterwards the Lichens were separated; but 545 546 547. of late it has been made most probable that a Lichen consists of an Alga and a Fungus conjoined. At least it must be so in some of the ambiguous forms. Botanists are in the way of bringing out new classifications of the Thallophytes, as they come to understand their structure and relations better. Here, it need only be said that 505. Lichens live in the air, that is, on the ground, or on rocks, trunks, walls, and the like, and grow when moistened by rains. They assimilate air, water, and some earthy matter, just as do ordinary plants. Algae, or Sea-. 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 Gray, Asa, 1810-1888. New York : American Book Company
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