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辽宁沙参属两个种的补记及染色体数目

邱均专, 洪德元   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1990-09-10 发布日期:1990-09-10
  • 通讯作者: 邱均专

Notes on Two Species of the Genus Adenophora from Liaoning Prov. and Their Chromosome Numbers

Qiu Jun-Zhuan, Hong De-Yuan   

  • Received:1900-01-01 Revised:1900-01-01 Online:1990-09-10 Published:1990-09-10
  • Contact: Qiu Jun-Zhuan

摘要:

 此文包括了缢花沙参Adenophora contracta (Kitag.)  J.  Z.  Qu  et  Hong 和松叶沙参 A.pinifolia Kitag.两个种。在过去,前者曾被处理为石沙参的变种(A.polyantha Nakai var.contracta Kitag.)。本文通过对它的地理分布、植物体形态和细胞学特征的研究,发现它相当独特。所以,把它处理为种的等级A.contracta (Kitag.) J.Z.Qu. et Hong。后者,曾被洪德元(1983)处理为存疑种。在此被确认为独立的种。

关键词: 沙参属, 缢花沙参, 松叶沙参, 染色体数目

Abstract:

 Two species, Adenophora contracta J. Z. Qu et Hong and A. pinifolia Kitag.,
 are treated and described in this paper.  The former species was originally treated as a va-
 riety, A. polyantha Nakai var. contracta Kitag. Based on gross morphology, this taxon is
found to be very distinct, so that it is here treated as a separate species A. contracta (Kitag.)
J. Z. Qu et Hong.  With much smaller corollas strongly contracted at the throat, much smal-
ler corolla lobes and smaller fruits, calyx lobes and seeds, it can easily be distinguished from
A. polyantha Nakai.  Its chromosome number is 2n=34. A. pinifolia was once considered  a
 doubtful species (Hong, Fl. Reip. Pop. Sin. 73(2): 139, 1983) mainly because the original de-
scription for this entity is so similar to the description for A. gmelinii.   The problem was
 further compounded by the lack of herbarium material.  Collections made near its type loca-
 lity, intended to rectify this deficiency, further clarified this species status:  Its chromosome
number is also 2n=34.

Key words: Adenophora, A. contracta, A. pinifolia, Chromosome number