Comparative studies on the Hanabusaya asiatica and its allied groups 1. External morphology and anatomical characters

금강초롱꽃 (Hanabusaya asiatica)과 근연분류군의 비교연구 1. 외부형태 및 해부학적 형질

  • Published : 1995.12.01

Abstract

Comparative studies on external morphology and anatomical characters were conducted understand the interspecific relationships and possibly to identify the position of Hanabusaya asiatica as an endemic genus among 4 genera and 9 species in H. asiatica and its allied groups. Such morphological characteristics as root shape, leaf size, presence or absence of wings in petiole, corolla and calyx shape, and inflorescence and stigma shape were useful qualitative characters. The morphology of stem, peduncle, calyx lobe, leaf, petiole, and ovary were also good characters to be included in this identification study. In the anatomical observations in these organs, projecting degree of epidermis and number of projecting area rather than cross-sectioned internal structures were found to be valuable index for the classification among species. External morphology and anatomical characters support the position of H. asiatica as an endemic genus very well. Known as the most important external characters to taxonomists(Fedorov, 1957: Nakai, 1952: Hong, 1983), leaf arrangement, inflorescence, and corolla shape were also preven to be very useful characters to identify the genera and species in the H. asiatica and its allied groups.

조사된 금강초롱꽃과(科) 근연 분류군 4속 9분류군에 대하여 외부형태학적 형질을 재검토하고 해부학적 형질을 통하여 종간 분류 및 금강초롱꽃속(屬)이 특산속으로서 구별이 가능한가를 알아보았다. 연구결과, 외부형태에 있어서는 뿌리의 모양, 잎의 형태, 엽병의 날개 유무, 화관의 형태, 꽃받침의 형태, 엽병의 날개 유무, 화관의 형태, 꽃받침의 형태, 화서의 형태, 주두의 형태 등이 식별 형질로서 가치가 인정되었으며 해부학적 형질에서는 횡단면의 내부구조 보다는 표피의 돌출정도와 돌출 수가 종간 구별을 위한 형질로 생각되어진다. 이번 조사를 통하여 금강초롱꽃속(屬)은 외부형태 및 해부학적 형질에서 유사 분류군들과 잘 구분되어 특산속으로서 잘 지지되었으며 기존의 학자들(Fedorov, 1957; Nakai, 1952; Hong, 1983)에 의해 분류형질로 인식되어온 엽서와 화서의 형태, 화관의 형질 들이 이번 연구에서도 속, 종을 구별하는데 매우 유용한 형질로 나타났다.

Keywords

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