Text-book of structural and physiological botany . Fig. 235.—Pilose sessile pappus ofSenecio. Fig. 236.—Pilose stipitate pappus ofdandelion. (Figs. 237, 238), is formed from its teeth, and subse-quently crowns the fruit. The pappus may either besessile as in the groundsel (Fig. 235), or stipitate ^.^^^ in the dan-dehon (Fig. 236), from the development of the upper partof the calyx-tube, in the form of a stalk which bears thefeathery crown. The pappus, again, may be dentate^ orcoronate (Fig. 239), the calyx-teeth remaining in the lattercase undeveloped, and being transformed into small broadhai
Text-book of structural and physiological botany . Fig. 235.—Pilose sessile pappus ofSenecio. Fig. 236.—Pilose stipitate pappus ofdandelion. (Figs. 237, 238), is formed from its teeth, and subse-quently crowns the fruit. The pappus may either besessile as in the groundsel (Fig. 235), or stipitate ^.^^^ in the dan-dehon (Fig. 236), from the development of the upper partof the calyx-tube, in the form of a stalk which bears thefeathery crown. The pappus, again, may be dentate^ orcoronate (Fig. 239), the calyx-teeth remaining in the lattercase undeveloped, and being transformed into small broadhairs which form, as it were, a crown to the fruit. In addi-tion to the Composite, instances of a pappus occur inValerianaceae and Dipsacaceae. The chicory, Cichorium ^ [TJie fleshy calyx-tube of the rose, apple, pear, &c., unites withthe pistil to form a pseudocarp (see p. 146).—Ed.] 128 Structural and Physiological Botany. Intybiis, furnishes an illustration of a coronate, the artichokeand Scorzonera of a plumose sessile, the goatsbeard,
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyorkjwileysons
