The elements of botany : structural and physiological : with a sketch of the artificial modes of classification, and a glossary of technical terms / by John Lindley.

John Lindley

Date:: 1861

Credit: The elements of botany : structural and physiological : with a sketch of the artificial modes of classification, and a glossary of technical terms / by John Lindley. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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$208. In many cases the terminal bud only of Endogcns is developed ; but very often a considerable number develope ; Ex. Asparagus. 209. When a terminal bud only of an Endogenous ])lant developos, the stem is generally cylindrical ; Ex. Palms : when several develope, it becomes conical; Ex. Bamboo. 210. In AcuoGENS no other stem is formed than what arises from the simple union between the bases of the leaves and the original axis of the bud from which they spring, and which they carry up along with them. 211. In the order of Ferns the section of a stem indicates the same structure as that of the numerous petioles out of which it is constituted. This is sufficiently apparent if the leaf-stalk of a Fern-leaf is cut through and its fibro-vascular tissue compared with that of the stem. Eventually these stems become hollow, but they ai-e originally solid '•'7 b 212. Usually the stem of a Fern is simple, but it occasionally forks, ap]»arently by the accidental formation of a double bud at its extremity.^ 213. Very large scars '^' are left on its surface, upon which are visible the ends of the fractured fibro-vascular tissue which corresponds with the sinuous zones of wood. These scars, which are at first true rhombs, and touch each other, are, after a time, separated by considerable intervals, and become much D 2$