. A textbook of botany for colleges and universities ... Botany. Fig. 760. — A cross section of a mesophytic leaf, that of a peppergrass (Lepidium), showing the upper epidermis (e), the lower epidermis (e'), stomata (5), the chlorenchyma (c) consisting of closely placed palisade cells (p) and more loosely placed sponge tissue (/), and a vascular or conductive tract (v) with bundle sheath (6), hadrome or xylem (A), and leptome or phloem (/); considerably magnified. Fig. 761.—A cross section of a mesophytic leaf, that of a blue violet {Viola cucullata)^ showing a single row of greatly elongated
. A textbook of botany for colleges and universities ... Botany. Fig. 760. — A cross section of a mesophytic leaf, that of a peppergrass (Lepidium), showing the upper epidermis (e), the lower epidermis (e'), stomata (5), the chlorenchyma (c) consisting of closely placed palisade cells (p) and more loosely placed sponge tissue (/), and a vascular or conductive tract (v) with bundle sheath (6), hadrome or xylem (A), and leptome or phloem (/); considerably magnified. Fig. 761.—A cross section of a mesophytic leaf, that of a blue violet {Viola cucullata)^ showing a single row of greatly elongated palisade cells {p), beneath which is a region of loose spongy tissue (/); con- siderably magnified. transversely to the leaf surface (especially in dicotyls), and are arranged in one to three compact layers (figs. 760, 761). The cells of the under portion, the spongy parenchyma (or, simply, the sponge), are arranged loosely and irregularly and have prominent intervening air spaces, the lacunae. Both the palisade cells and the sponge cells have thin, permeable, cellulose walls. Mesophytic monocotyls; hydrophytes and shade plants. — The leaves. 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 Coulter, John Merle, 1851-1928; Barnes, Charles Reid, 1858-1910, joint author; Cowles, Henry Chandler, 1869- joint author. New York, Cincinnati [etc] American book company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
