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KMID : 0368419910340010045
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Journal of Plant Biology
1991 Volume.34 No. 1 p.45 ~ p.51
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Morphological Variability in Endarachne binghamiae J. Agardh(Phaeophyta) from the East Coast of Korea
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Rhew Kyeong-Sik
Boo Sung-Min
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Abstract
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Morphological variability was quantified for Endarachne binghamiae J. Agardh from five local populations collected in December, 1989 and in March, 1990. The sampling sites were chosen at intervals of 50´N along the east coast of Korea. Fifty individuals were haphazardly collected for the relationship between the blade length and reproduction, among which twenty five individuals were randomly selected for morphological variation. The Korean plants of E. binghamiae had the capacity of reproduction at an early stage of growth. The holdfast diameter and the plurangial length showed clinal variation of increment from the north to the south whereas the cryptostomata from the south to the north. The holdfast diameter, the blade thickness, the number of plurangial blades and the cryptostomata increased from December to March, when the blade length decreased. Endarachne is distinguished by the densely interwoven hyphal cells in the medulla. four to eighteen rows of the plurangial compartments, and absence of paraphyses between plurangia. Therefore E. binghamiae should not be combined into Petalonia, but rather the Soviet plants of P. zosterifolia may be renamed as a taxon belonging to the genus Endarachne.
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