. Plant life, considered with special references to form and function. Plant physiology. Ftg. 72—A^ Lull capsules nf nrjiiin ; frnm ttie ri^lit-liand nne Uie lid has fallen, showing the teeth. Magnified 5 diani. Z>, four gametophyte shuocs of S/^lcicknuin ain/'ultaceutn, bearing four sporophytcs. Natural size. C, a capsule of one of the same sporophytes, showing enlarged apophysis, a, below the sporangium, s. Magnified 10 diain. /', capsule uf S/'lackftmn lutetoii, uith umbrella-like apo- physis, (z, below sporauginni, .f Magnified 2 diani. study of its structure is left for Part III. It (o
. Plant life, considered with special references to form and function. Plant physiology. Ftg. 72—A^ Lull capsules nf nrjiiin ; frnm ttie ri^lit-liand nne Uie lid has fallen, showing the teeth. Magnified 5 diani. Z>, four gametophyte shuocs of S/^lcicknuin ain/'ultaceutn, bearing four sporophytcs. Natural size. C, a capsule of one of the same sporophytes, showing enlarged apophysis, a, below the sporangium, s. Magnified 10 diain. /', capsule uf S/'lackftmn lutetoii, uith umbrella-like apo- physis, (z, below sporauginni, .f Magnified 2 diani. study of its structure is left for Part III. It (onsists at maturity of a yellowish or brown spherical or cylindrical case (fig. 72), which is sessile or raised upon a short or long stalk and contains (a lew or) huncircds or thousands of reproductive cells called spores. The base of this stalk constitutes an organ called the "foot," which is embedded in the gainetophvte (/, fig. 73). 68. Nittrition.— The surface of tlie young sporoph\'te, when large and well dexeluped, as it is in the higher li\er- worts and mosses, is green. To a limited extent, therelore, it is able to make food ; but not suffi<ient lor its needs,. 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 Barnes, Charles Reid, 1858-1910. New York, H. Holt & company
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectplantphysiology
