| 松属针叶角质层内表面结构的扫描电镜观察 |
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| 引用本文： | 胡玉熹.松属针叶角质层内表面结构的扫描电镜观察[J].中国科学院研究生院学报,1986,24(6):464-468. |
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| 作者姓名： | 胡玉熹 |
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| 作者单位： | (中国科学院植物研究所，北京) |
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| 摘 要： | 作者在扫描电镜下，比较观察了松属l7种2变种针叶角质层内表面的结构特征。结果
表明，针叶角质层内表面的角质颗粒突起与凹陷雕纹变化不甚明显，但胞间凸缘的特征差异较
为显著，如单维管束松亚属(白皮松组除外)为红松型，双维管束松亚属为油松型，而白皮松组
则为白皮松型。此一特征为松属的分类研究，又提供了一个新的证据。
本文综合讨论了松属针叶的结构及角质层内、外表面结构特征，木材解剖，木材管胞内壁
的瘤层特征，树皮显微结构，以及染色体组型分析等资料，作者认为：松属中两个亚属的划分是符合自然的，同时将原属单维管束松亚属中的白皮松组分出来，自成白皮松亚属也是合适的。
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| 关 键 词： | 松属 针叶角质层 |
SEM Observation of the Inner Surface Structure of Needle Cuticles in Pinus |
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| Hu Yu-Shi.SEM Observation of the Inner Surface Structure of Needle Cuticles in Pinus[J].Journal of the Graduate School of the Chinese Academy of Sciences,1986,24(6):464-468. |
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| Authors: | Hu Yu-Shi |
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| Institution: | (Institute of Botany, Academia Sinica, Beijing) |
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| Abstract: | Comparative investigation on the inner surfaces of needle cuticle of Pinus was made
for 17 species and two varieties under SEM. It is shown that the differences in protrusions and
depressions of the internal cuticle surfaces of needles in the genus are not remarkable. Howe-
ver, the features of intercellular flanges are rather distinct and three types can be distinguished.
They are: (1) Subgen. Strobus (Sweet) Rehd (except Sect. Parrya) is of the Pinus koraiensis
type; (2) Subgen. Pinus is of the P. tabulaeformis type; (3) Sect. Parrya Mayr of Subgen. Stro-
bus (Sweet) Rehd is of the P. bungeana type. The character may provide taxonomy of the genus
Pinus with a new piece of evidence.
Based on the features mentioned above, together with many others, such as wood anatomy,
warts of wood tracheids, bark structure, needle anatomy and cuticle structure as well as ka-
ryotypic analysis in Pinus, the author considers that division of Pinus into two subgeuera is na-
tural and that separation of Sect. Parrya Mayr from Subgen. Strobus (Sweet) Rehd. and thesubsequent establishment of the subgenus Parrya of its own are also reasonable. |
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| Keywords: | Pinus Needle cuticle |
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