• Title/Summary/Keyword: Rhodophyta

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Notes on Amphiroa (Rhodophyta) from Cheju Island (제주산 홍조 게발속(Amphiroa) 식물에 대한 주해)

  • 최도성
    • Journal of Plant Biology
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    • v.32 no.4
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    • pp.363-373
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    • 1989
  • Morphotaxonomic accounts are given to four species of Amphiroa, Rhodophyta from Cheju Island ; A. valonioides Yendo, A. itonoi Srimanobhas et Masaki, A. rigida Lamouroux, and A. misakiensis Yendo. A. valomioides has one-tiered genicula of unequal length and its semiendophytic in other Amphiroan species, whereas A. rigida has two-tiered genicula of equal length and is semi-endophytic in non-articulated coralline alga. A misakiensis has five to thirteen-tiered genicula of unequal length and forms tufts on rocks where the branches are often recumbent. A. rigida is introduced for the first time to Korean flora.

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Taxonomy of Janczewskia (Rhodomelaceae, Rhodophyta): Morphology and Reproduction of J. gardneri from California

  • K. W. Nam;Kim, Y. S.;Lee, S. J.;J. Ryu
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.293-295
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    • 2003
  • Janczewskia (Rhodomelaceae, Rhodophyta), the parasitic red algal genus, was established by Solms-Laubach (1877). This genus is characterized by wart-like thallus with coalescent branches, which form a solid tissue. Some species have conspicuously projected branches, but others have not this kind of branches. In the species, the branches rarely project beyond the surface of the nodule-like body. (omitted)

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Taxonomic Reassessment of the Genus Polysiphonia (Rhodomelaceae, Rhodophyta): Morphology and Reproduction of Neosiphonia decumbens and N. harlandii (홍조 붉은실속 식물의 분류학적 재검토: 누은새붉은실과 가시새붉은실의 형태와 생식)

  • Kim, Myeong-Suk
    • ALGAE
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    • v.18 no.2
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    • pp.107-119
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    • 2003
  • Neosiphonia is separated from the traditionally well known genus Polysiphonia (Rhodomelaceae, Rhodophyta) and 12 species includes in Korea. In this study, the vegetative and reproductive developments of two Neosiphonia species, N. decumbens (Segi) M.S. Kim et I.K. Lee and N. harlandii (Harvey) M.S. Kim et I.K. Lee, are reinvestigated. N. decumbens is diagnosed by following combination of the characters: plants 1-3 cm high, dwarf, decumbent, main axes indistinct, irregularly branched in dichotomous manner, and alternately or secundly ramified with wide angles above. N. harlandii is distinguished by the features: plants 4-8 cm high, usually solitary and saxicolous, erect, densely corticated at base of distinct main axes, rather irregularly alternate in branch, and with cicatrigenous branchlets developed numerously on every part of frond. The two species share typical characteristics of the genus Neosiphonia, such as a base attached by unicellular rhizoids, cut off by cross wall, pericentral cells in 4, trichoblasts moderately developed near the apex of branches, leaving persistent scar-cells, tetrasporangia arranged in a spiral series, procarps with 3-celled carpogonial branch, and spermatangial branches arising as a primary branch of trichoblast. Taxonomy of the two Neosiphonia in regard to Polysiphonia is discussed.