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广东壳斗科木材的宏观结构及其与分类分布的关系

何天相   

  1.  (华南农学院林学系)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1981-08-18 发布日期:1981-08-18
  • 通讯作者: 何天相

On macroscopic structures of the Fagaceous woods in Kwangtung in relation to classification and distribution

Ho Tien-Hsiang   

  1.  (South China College of Agriculture)
  • Received:1900-01-01 Revised:1900-01-01 Online:1981-08-18 Published:1981-08-18
  • Contact: Ho Tien-Hsiang

摘要:

作者根据主要采自广东的壳斗科5属约93种木材标本进行了观察并试就
其宏观结构写出了分属的检索表。  从木材解剖的角度看来,作者认为:将(  )亚
属(Subgenus Cyclobalanlopsis(Oerst.)Schneid.)和石栎亚属(Subgenus Pasania
(Miq.)A.Camus)分别从栎属(Quercus L.)和柯属(Lithocarpus Bl.)分出独
立成属是没有充分理由的。

Abstract:

 In the present paper, 3 species of Fagus, 6 of Castanea, 24 of Castanopsis, 26 of
Lithocarpus, and 34 of Quercus (sens. lat.), totaling 219 specimens  (slides) collected
mainly from the province of Kwangtung and the vicinity have been compared, with
special reference to their pore arrangement and ray disposition.
      Taking the Genus as a group, the macroscopic structure of each genus in detail,
the end-grain photographs of the representatives and a key to the genera are provided.
     After comparing the wood structure, the present writer is of the opinion that it
is better to correlate the genus Castanopsis Spach with the genus Lithocarpus Blume
together, as has been done in some works.[2,14]
      In regard to the ring porosity in woody angiosperms it has a close relationships
with the habitat[8,10],i.e., diffuse-porous woods usually present in evergreen trees, while
ring-porous ones in deciduous trees, and of course the anatomical features too, there-
fore is appropriate for the genus Quercus L. to include Cyclobalanopsis (Endl.) Oerst.
as a natural group.