Introduction to structural and systematic botany, and vegetable physiology, : being a 5th and revedof the Botanical text-book, illustrated with over thirteen hundred woodcuts . an take place only by the development of secondaryaxes from axillary buds. These may develop at once as peduncles,or as leafy branches ; but they are in either case arrested, sooner orlater, by a flower-bud, just as the primary axis was (Fig. 328). Iffurther development ensues, it is by the production of branches of thethird order, from the axils of leaves or bracts on the branches of thesecond order (Fig. 329) ; and so
Introduction to structural and systematic botany, and vegetable physiology, : being a 5th and revedof the Botanical text-book, illustrated with over thirteen hundred woodcuts . an take place only by the development of secondaryaxes from axillary buds. These may develop at once as peduncles,or as leafy branches ; but they are in either case arrested, sooner orlater, by a flower-bud, just as the primary axis was (Fig. 328). Iffurther development ensues, it is by the production of branches of thethird order, from the axils of leaves or bracts on the branches of thesecond order (Fig. 329) ; and so on. Hence this mode of inflo-rescence is said to be definite or determinate, in contradistinction tothe indeterminate mode, already treated of, where the primary orleading axes elongate indefinitely, or merely cease to grow from thefailure of nourishment, or some other extrinsic cause. The mostcommon and most regular cases of determinate inflorescence occur inopposite-leaved plants, for obvious reasons ; and such are accordinglychosen for the subjoined illustrations. But the Rose, Potentilla, andButtercup furnish familiar examples of the kind in
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Keywords: ., bookauthorgra, bookcentury1800, bookdecade1860, booksubjectbotany
