. Plants; a text-book of botany. Botany. Fig. 93. Two common liverworts : to the left is Coitocephalus, a Marchantia form, ehowing rhizoids, dichotomous branching, and the conspicuous rhombic areas (areolse) on the dorsal surface; to the right is Anihoceros, with its simple thallus and pod-like sporogonia.^C' Fig. 94. Cross-sections of thallus of .VarcTianfia: A, section from thicker part of thallus, where supporting tissue (p) is abundant, and showing lower epidermis giving rise to rhizoids (h) and plates (&), also chlorophyll tij-~sue (clil) organized into chambers by partitions


. Plants; a text-book of botany. Botany. Fig. 93. Two common liverworts : to the left is Coitocephalus, a Marchantia form, ehowing rhizoids, dichotomous branching, and the conspicuous rhombic areas (areolse) on the dorsal surface; to the right is Anihoceros, with its simple thallus and pod-like sporogonia.^C' Fig. 94. Cross-sections of thallus of .VarcTianfia: A, section from thicker part of thallus, where supporting tissue (p) is abundant, and showing lower epidermis giving rise to rhizoids (h) and plates (&), also chlorophyll tij-~sue (clil) organized into chambers by partitions (o); B, section near margin of thallus more magnified, ehowing lower epidermis, two layers of supporting tissue (jj) with reticulate walls, a single chlorophyll chamber with its bounding walls (s) and containing short, often branching filaments wliosc cells contain chloroplaists (f///), overarching upper epidermis (o) pierced by a large chimney-like air-pore (sp).—After 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. New York, D. Appleton and company


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1900