. The essentials of botany. Botany. CARPOPRTTA. 167 tically. These protophytes, which ^ live in the midst of the moist tis- sues of the lichens, were until re- K^, cently supposed to be parts of the lichen itself, and were called go- nidia, a term which it is still con- venient to use. A few lichens are parasitib in this way upon plants a little higher than protophytes. 351. The spores of lichens are produced in sacs, which are either in discs (similar to those of Cup- fungi) or in cavities (similar to these of the Black Fungi). In many common species the spore- bearing discs (called apothecid


. The essentials of botany. Botany. CARPOPRTTA. 167 tically. These protophytes, which ^ live in the midst of the moist tis- sues of the lichens, were until re- K^, cently supposed to be parts of the lichen itself, and were called go- nidia, a term which it is still con- venient to use. A few lichens are parasitib in this way upon plants a little higher than protophytes. 351. The spores of lichens are produced in sacs, which are either in discs (similar to those of Cup- fungi) or in cavities (similar to these of the Black Fungi). In many common species the spore- bearing discs (called apothecid) are large and readily seen (Fig. 90, A and -B), while in others they are small and not easily made out. In other species the spore-sacs are im-. 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 Bessey, Charles E. (Charles Edwin), 1845-1915. New York, Holt


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1884