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Inflorescence bud scales in Halesia carolina. The buds of many woody plants, especially in temperate or cold climates, are protected by a covering of modified leaves called scales which tightly enclose the more delicate parts of the bud. Many bud scales are covered by a gummy substance which serves as added protection.
The adult females resemble the bud of their coniferous hosts, [4] hence the name bud scale. Physokermes are difficult to identify to species, as only pre-reproductive females can be used. [ 4 ] Once females begin to oviposit , their bodies become distorted and it is not possible to detect the morphological features necessary to identify them to ...
Cataphylls include bracts, bracteoles and bud scales, as well as any small leaves that resemble scales, known as scale leaves. [5] The functions of cataphylls, such as bud scales, may be short-lived, and they are often shed after their function is fulfilled.
Arranged on a conical surface (like a snail shell); used to describe inflorescence s in which the bud s are arranged in an almost helical manner on the outside of a long, tapering, conical rachis. bract A modified leaf associated with a flower or inflorescence and differing in shape, size, or color from other leaves (and without an axillary bud ...
0: Sprouting/Bud development 00: Dormancy: leaf buds and the thicker inflorescence buds closed and covered by dark brown scales 01 [1] Beginning of bud swelling: bud scales elongated 03: End of bud swelling: edges of bud scales light coloured 07: Beginning of bud burst: first green or red leaf tips just visible 09: Leaf tips extended beyond scales
A stipule is considered a "bud scale" if it is hard or scaly and protects leaf buds as they form. These generally fall off as soon as the leaf unfolds. A stipule is considered "tendrillar" if they are long thin tendrils, and are generally used by climbing plants. A stipule is considered "spiny" if they are long and pointy.
0: Sprouting/Bud development 00: Dormancy: winter buds pointed to rounded, light or dark brown according to cultivar; bud scales more or less closed according to cultivar 01: Beginning of bud swelling: buds begin to expand inside the bud scales 03: End of bud swelling: buds swollen, but not green 05 “Wool stage”: brown wool clearly visible 07
A scale leaf is a leaf with a reduced blade which is mainly formed by the amphigastrium. It can be dry, membranous or coriaceous, but also sometimes green. Scale leaves protect with their bud scales the leaves and flowers inside the bud from drying out in winter. In some species the scale leaves are additionally covered with a sticky layer of wax.
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