. The elements of botany for beginners and for schools. Botany. 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 Jiy rains. They assimilate air, water, and some earthy matter, just as do ordinary pl
. The elements of botany for beginners and for schools. Botany. 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 Jiy rains. They assimilate air, water, and some earthy matter, just as do ordinary plants. Algae, or Sea-. 550 551 552 weeds, live in water, and live the same kind of life as do ordinary plants. Fungi, whatever medium they inhabit, live as animals do, upon organic mat- ter, — upon what other plants have assimilated, or upon the products of Fig. 545, 546. Two plants of Riccia natans, about natural size. 547. Magnified section of a part of the frond, showing two immersed spore-cases, and one emptied space. 548. Magnified section of a spore-case with some spores. 549. Magni- fied spore-case torn out, and spores; one figure of the spores united; the other of the four separated. Fig. 550. Branch of a Ohara, about natural size. 551. A fruiting portion, magnified, showing the structure; a sporocarp, and an antheridium. 552. Outlines of a portion of the stem in section, showing the central cell and the outer or cortical 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 Co
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Keywords: ., bookpublishernewyorkamericanboo, booksubjectbotany, bookyear1887
