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

서지정보

· 발행기관 : 한국조류학회I
· 수록지 정보 : ALGAE / 18권 / 2호 / 107 ~ 119페이지
· 저자명 : 김명숙

초록

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.

영어초록

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.

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