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一些中国蕨类植物的细胞学观察

翁若芬   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1990-01-10 发布日期:1990-01-10
  • 通讯作者: 翁若芬

Cytological Observations on Some Chinese Ferns

Weng Ruo-Fen   

  • Received:1900-01-01 Revised:1900-01-01 Online:1990-01-10 Published:1990-01-10
  • Contact: Weng Ruo-Fen

摘要:

本文报道华东地区30种蕨类植物的染色体数目,其中阔片短肠蕨Allantodia mathewi(Cop.)
Ching n=82, 耳羽短肠蕨A.wichurae(Mett.)Ching n=41,拟粉背蕨Aleuritopteris pseudof-
arinosa Ching n=58,刺头复叶耳蕨Arachniodes exilis(Hance)Ching n=41,斜方复叶耳蕨A.
rhomboides(Wall.)  Ching n=41,毛轴假蹄盖蕨Athyriopsis  peterseni(Kunze)Ching n=80,
园盖阴石蕨Humata tyermanni Moore n=40,  峨眉茯蕨  Leptogramma scallanii(Christ)Ching
n=36,福建剑蕨  Loxogramme  fujianensis Ching n=35,黄腺羽蕨Pleocnemia  winitii  Holtt.
  n=41,紫柄蕨Pseudophegopteris Pyrrhorachis(Kunze)Ching n=62是首次报道。

关键词: 蕨类植物, 细胞学, 染色体数目

Abstract:

 Cytological observations on thirty fern species from eastern China are re-
ported.  Most of the materials examined were fixed in the field from the Wuyishan and Lu-
shan mountains, Putuoshan Island, and Hangzhou, but two of them were fixed from the plants
grown in the garden of our Museum.  The results of observations are summarized in Table 1.
The chromosome numbers of eleven species are reported here for the first time.   They are:
Allantodia mathewi (Cop.) Ching n=82; A. wichurae (Mett.) Ching n=41; Aleuritopteris
pseudofarinosa Ching n=58; Arachniodes exilis (Hance) Ching n=41; A. rhomboides (Wall.)
Ching n=41; Athyriopsis peterseni (Kunze) Ching n=80; Humata tyermanni Moore n=40;
Leptogramma scallanii (Christ) Ching n=36; Loxogramme fujianensis Ching n=35; Pleocne-
mia winitii Holtt. n=41; Pseudophegopteris pyrrhorachis (Kunze) Ching n=62.
      On the basis of ploid levels and reproduction, the thirty species can be divided into three
groups as shown in Table 2.
Table 2  Three groups of thirty species of Chinese ferns
Group
Number of taxa
percentage
Diploid (sexual)
Tetraploid (sexual)
Triploid (apomictic)
16
13
 1
53.3%
43.4%
 3.3%

Key words: Pteridophyta, Cytology, Chromosome number