. Botany, an elementary text for schools. Botany. 228. Head of pasture thistle, showing the high prickly involucre. 29. Longitudinal section of thistle head. 230. Floret of thistle. involucre. In the thistle (Fig. 228) this involucre is prickly. A longitudinal section (Fig. 229) discloses the florets, all attached at bottom to a common torus, and densely packed in the involucre. The pink tips of these florets constitute the showy part of the head. 282. Each floret of the thistle (Fig. 230) is a complete flower. At a is the ovary. At 5 is a much-divided plumy calyx, known as the pappus. The cor

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. Botany, an elementary text for schools. Botany. 228. Head of pasture thistle, showing the high prickly involucre. 29. Longitudinal section of thistle head. 230. Floret of thistle. involucre. In the thistle (Fig. 228) this involucre is prickly. A longitudinal section (Fig. 229) discloses the florets, all attached at bottom to a common torus, and densely packed in the involucre. The pink tips of these florets constitute the showy part of the head. 282. Each floret of the thistle (Fig. 230) is a complete flower. At a is the ovary. At 5 is a much-divided plumy calyx, known as the pappus. The corolla is long-tubed, rising above the pappus, and is enlarged and 5-lobed at. 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York Macmillan

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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany