. Notes on the life history of British flowering plants. Botany; Plant ecology. CONIFER^:; 385. connected by a thin membrane. Towards the edges the fibres turn suddenly backwards, and are frayed at the edges, forming an interlacing tissue which helps to strengthen the bud (Fig. 305, sc). These scales are very numerous. Some of the outer ones are truncate (Fig. 308). These are followed by a few that are tri- angular - subulate and acuminate. Succeeding scales pass quickly from triangular to decidedly subulate forms, which are more or less revol- ute at the tip. They are followed by a few more w
. Notes on the life history of British flowering plants. Botany; Plant ecology. CONIFER^:; 385. connected by a thin membrane. Towards the edges the fibres turn suddenly backwards, and are frayed at the edges, forming an interlacing tissue which helps to strengthen the bud (Fig. 305, sc). These scales are very numerous. Some of the outer ones are truncate (Fig. 308). These are followed by a few that are tri- angular - subulate and acuminate. Succeeding scales pass quickly from triangular to decidedly subulate forms, which are more or less revol- ute at the tip. They are followed by a few more which are linear, with a subulate base, and revolute at the tip. These scales with revolute tips are followed by a dense mass of others which are subulate-linear, acuminate, straight, and closely appressed to the bud. If a large terminal bud (Fig. 308, t) is taken, and the scales removed, it will be seen that the bud includes the whole of the plan of growth for the two succeeding years (Fig. 307). The scales themselves are the primary leaves of next summer's shoot ; and their obovate per- sistent bases constitute the per- sistent scales upon the primary axis. In the axils of these per- sistent portions, which are green in winter, we find the axillary axillary buds at the base ^uds which gO tO form the SCCOnd- of the terminal; I, base ary shoots upou the resumption of or needles. ^'*™° ''^ ^'^"^^ growth in Spring. In those buds con- taining male catkins, the latter are equivalent to axillary shoots, and occupy the lower portion of the axis of the bud ; while the perfect leaves 2 c Fig. 307.—l^imis syhesiris. Terminal Lud. c, point of insertion of a female cone; l, base of pair of needles ; Ih, lateral bud ; sc^ bases of primary leaf scales which have been removed, revealing the axillary foliage-leaf buds ; sc', lower portion of bud in which no needles are developed ; tb, extreme base of ter- minal bud ; tb", ter- minal bud of next Please note that these imag
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Keywords: ., bookauthorlub, bookcentury1900, bookdecade1900, booksubjectbotany
