Morphology and Anatomy of Winter Bud of Pteridophyllum racemosum ( Pteridophyllaceae )

Morphology and Anatomy of Winter Bud of Pteridophyllum racemosum ( Pteridophyllaceae )
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总状蕨类植物(蕨类植物)冬芽的形态与解剖

DOI:
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发表时间:
2012
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通讯作者:
Keiichi
Keiichi
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作者:
Yasuhiko;Jun;Keiichi

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总状翼叶(翼叶科),日本特有的常绿草本植物,在地面上产生冬芽。芽由三到四个芽鳞、嫩叶、腋芽和一个幼小的花序组成。幼叶和幼花序在芽中向下弯曲。幼叶呈环状。芽鳞组织由表皮、皮层和维管束组成。皮层的特征是相对较宽的细胞间隙和淀粉粒在细胞内的沉积。
Pteridophyllum racemosum (Pteridophyllaceae), an evergreen herb endemic to Japan, produces winter buds on the ground surface. Buds consist of three to four bud scales, young leaves, axillary buds, and a young inflorescence. Young leaves and the young inflorescence curve downward in the bud. Young leaves show circinate vernation. Bud scale tissues are composed of an epidermis, cortex, and a vascular bundle. The cortex is characterized by relatively wide intercellular spaces and deposition of starch grains in the cells.
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