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KMID : 0380319710060000069
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Journal of Korean Research Institute for Better Living
1971 Volume.6 No. 0 p.69 ~ p.75
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A Cytological Study on Genus Scopolia in South East Asia
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Abstract
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There taxa of Scopolia are growing in South East Asia from Himalaya to Korea, China and Japan. The taxa are Scopolia lurida Dunal, Scopolia paruiflora (Dunn) Nakai and Scopolia japamica Maxim.
In 1928, Vilmorin and others conuted the chromosome number of Scopolia lurida as twenth-four.
this study is proposed to count the chromosome number of the Scopolia paruiflora and Scopolia japonica and compare the histological and gross morphological characteristics of the two taxa. The geographical distribution also consideres.
The chromosome number of Scopolia paruiflora is forth-eight while Scopolis japonica is eighty-four or, rarey, one hunred sixtyeight in the same root tip cell(Plate I).
The epidermal pattern of both taxa is similar but the epidermal cells of Scopolia japomice are larger than those of Scopolia paruiflora. The fundamental epidermal cells of Scopolia paruiflora are 92.2 microns long and 58.6 microns wide whie the epidermal cells of Scopolia japonica are 118.5 microns long and 88.2 microns wide on adaxail leaf surfaces.
Stomata of S.paruiflora are 42.0 microns long and 31.5 microns wide and stomata of S.japonica are 53.5 microns long and 37.1 microns wide(Table 2, Fig. 1).
Numbers of lateral veins on the leaf blades of Scopolia paruiflora are as many as ten and those of Scopolia japonica are average six (Plate I).
More vascular bundles are counted in the stem of Scopolia paruiflora than on that of Scopolia japonica (Table 1, Fig. 2).
According to the cytogeological and histological study and geographical consideration,Scopolia taxa of south East presumably diversed from Himalaya taxa to Korean and Japanese taxa.
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KEYWORD
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