The species of the genus Eudesme from the China were are studied. There are four species in China, Eudesme virescens (Carm.) J.Ag., Eudesme huanghaiensis Ding et Lu, E.qingdaoensis Ding et Lu and E.shandongensis Ding ...The species of the genus Eudesme from the China were are studied. There are four species in China, Eudesme virescens (Carm.) J.Ag., Eudesme huanghaiensis Ding et Lu, E.qingdaoensis Ding et Lu and E.shandongensis Ding et Lu. Their morphological features and geographical distributions are discussed, a key to the species from China is provided. E.virescens is characterized by frond being 10～20 cm in height or more, 2～5 mm in diameter, solid in center, its subcortical cells being cylindrical or ellipsoidal. E.huanghaiensis is characterized by frond being 5～20 cm in height, 1.5～3.0 mm in diameter, solid, spherical subcortical cells and rhizoidal filaments developed from the basal cells of subcortext. E.qingdaoensis is characterized by frond being 10 cm in height, hollow in center, 2.5 mm in diameter, 90～230 μm long medullary cells, thin medullary wall, long and slender terminal cell of rhizoidal filaments. E.shandongensis is characterized by frond being 18～25 cm in height, hollow in center, 1.0～1.5 mm in diameter, 80～195 μm long medullary cells, slightly thick medullary wall,spherical terminal cell of rhizoidal filaments. All specimens studied are preserved in the Herbarium of the Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.展开更多
Fatty acid composition of four Sargassum species from Qingdao and Shidao,Shandong Provincewas investigated.16:0（palmitic acid）was the major saturated fatty acid.C<sub>18</sub> and C<sub>20</sub&...Fatty acid composition of four Sargassum species from Qingdao and Shidao,Shandong Provincewas investigated.16:0（palmitic acid）was the major saturated fatty acid.C<sub>18</sub> and C<sub>20</sub>were the mainpolyunsaturated fatty acids（PUFAs）.Arachidonic acid and eicosapentaenoic acid predominated amongpolyenoic acids in all the algal species examined.except for Sargassum sp.which had low concentrationof eicosapentaenoic acid.展开更多
We reported Sargassum longifructum Tseng et Lu in 1987; the specific name is, however, illegitimatized by the earlier homonym Sargassum longifructum C. Agardh (Grunow, 1915). To validate the algal species, we publish ...We reported Sargassum longifructum Tseng et Lu in 1987; the specific name is, however, illegitimatized by the earlier homonym Sargassum longifructum C. Agardh (Grunow, 1915). To validate the algal species, we publish the new name S. zhangii Tseng et Lu to take place of S. longifructum Tseng et Lu.. It is a pleasure for us to name this species in honour of the late Professor Zhang Junfu.\; Sargassum zhangii Tseng et Lu nom. nov.\;Basionym: Sargassum longifructum Tseng et Lu, 1987. Oceanologia et Limnologia Sinica, 16(6):516, Fig.2, Plate I:2.\;We reported Sargassum pusillum Tseng et Lu in 1995; the specific name is, however, illegitimatized by the earlier homonym Sargassum pusillum Taylor (Taylor, 1975). To validate the algal species, we publish the new name Sargassum pumilum Tseng et Lu.\; Sargassum pumilum Tseng et Lu nom. nov.\;Basionym: Sargassum pusillum Tseng et Lu, 1995, Oceanologia et Limnolgia Sinica, 26(5):524, Fig.4, Plate I:4.\;We are grateful to Dr. P. C. Silva for notifying those nomenclature problems.展开更多
The genus Sphaerotrichia Kylin(Chordariaceae, Chordariales), distributed in the China coast, was studied in details.According to the morphological features and anatomy structure, the specimens can be divided into thre...The genus Sphaerotrichia Kylin(Chordariaceae, Chordariales), distributed in the China coast, was studied in details.According to the morphological features and anatomy structure, the specimens can be divided into three species, Sphaerotrichia firma(Gepp.) A.Zinova, S.huanghaiensis Ding et Lu and S.japonica Kylin.S.firma is characterized by single or tuft frond, more or less evident main branch, 20～30 cm high, 1～1.5 mm in diameter or more; the branches generally are at right angle to the main ones; loose or dense; irregularly alternated branching 2～3 times or lateral ; center cells columniform in medulla, densely arranged, consist of 2～3 or 2～5 layers of cells, cell wall thick; subcortical layer consists of 3～5 or 4～5 layers of cell; assimilated filaments often composed of 4～5 cells, with a swollen, spherical or oboval terminal cell; unilocular sporangia born on the basal cell of assimilated filaments, sessile,long oval, or long oboval, 70～80 μm long, 30～ 34 μm in diameter.S.huanghaiensis Ding et Lu is characterized by linear tuft frond, 6～23 cm high; main branch evident, often distorted, 1～1.5 mm in diameter, 1～2 alternated or lateral branching; bent branches often evident, with slightly swollen tips or growing into slender divergent branches; cell wall of the medulla thick, secondary tip-connection related to subcortical layer cells; subcortical layer thick in mature frond, consists of 5～6 layers of cells; assimilated filaments very often densely arranged, consist of 6～10 cells; unilocular sporangia born on the base of assimilated filaments,sessile or petiolate with one to two cells,pyriform or oboval,50～90 μm long, 20～30 μm in diameter.S.japonica Kylin is characterized by single or tuft frond, hollow, irregularly forked branching, 5～30 cm high; lateral or alternated branching 1～4 times with acute angle,main axes evident or not; branches 0.5～1 mm in diameter or thicker; the cell wall of medulla generally thick; subcortical layer composed of 2～3 layers of cells; assim展开更多
Two new species of the genus Tinocladia Kylin (1940) T. eudesmoides Ding et Lu sp.nov. and Tinocladia zhangii Ding et Lu sp.nov., are described. T. eudesmoides is mainly characterized by its longitudinally and transve...Two new species of the genus Tinocladia Kylin (1940) T. eudesmoides Ding et Lu sp.nov. and Tinocladia zhangii Ding et Lu sp.nov., are described. T. eudesmoides is mainly characterized by its longitudinally and transversely produced sub-cortical filaments from the medulla, its short uniseriate assimilating filaments, usually composed of 6-10 cells with slightly swollen and narrow ultimate cells, and its unilocular sporangia (60-115)×55-70μm, variable in size. T. zhangii is mainly characterized by its very solid frond, not rip apart by hands, its evident longer primary branches, its short and slender secondary branches, with very evident sub-cortical layer, and filaments divided repeatedly, and its large and small unilocular sporangia, with the latter borne on an evidently swollen pedicel.展开更多
Two new species of the genus Tinocladia Kylin, T. gracilis sp.nov. and T. microsporangii sp.nov., are described. T. gracilis is characterized by its slender frond, variable size, infrequently branched medullary filame...Two new species of the genus Tinocladia Kylin, T. gracilis sp.nov. and T. microsporangii sp.nov., are described. T. gracilis is characterized by its slender frond, variable size, infrequently branched medullary filaments, and short assimilating filaments with 2-7 cells. T. microsporangii is characterized by its medullary cells which are slightly larger than sub-cortical ones; narrow sub-cortical layer, usually consisting of 4-6 cells and very small unilocular sporangia. The holotypes are deposited at the Herbarium of the Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.展开更多
文摘The species of the genus Eudesme from the China were are studied. There are four species in China, Eudesme virescens (Carm.) J.Ag., Eudesme huanghaiensis Ding et Lu, E.qingdaoensis Ding et Lu and E.shandongensis Ding et Lu. Their morphological features and geographical distributions are discussed, a key to the species from China is provided. E.virescens is characterized by frond being 10～20 cm in height or more, 2～5 mm in diameter, solid in center, its subcortical cells being cylindrical or ellipsoidal. E.huanghaiensis is characterized by frond being 5～20 cm in height, 1.5～3.0 mm in diameter, solid, spherical subcortical cells and rhizoidal filaments developed from the basal cells of subcortext. E.qingdaoensis is characterized by frond being 10 cm in height, hollow in center, 2.5 mm in diameter, 90～230 μm long medullary cells, thin medullary wall, long and slender terminal cell of rhizoidal filaments. E.shandongensis is characterized by frond being 18～25 cm in height, hollow in center, 1.0～1.5 mm in diameter, 80～195 μm long medullary cells, slightly thick medullary wall,spherical terminal cell of rhizoidal filaments. All specimens studied are preserved in the Herbarium of the Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.
文摘Fatty acid composition of four Sargassum species from Qingdao and Shidao,Shandong Provincewas investigated.16:0（palmitic acid）was the major saturated fatty acid.C<sub>18</sub> and C<sub>20</sub>were the mainpolyunsaturated fatty acids（PUFAs）.Arachidonic acid and eicosapentaenoic acid predominated amongpolyenoic acids in all the algal species examined.except for Sargassum sp.which had low concentrationof eicosapentaenoic acid.
文摘We reported Sargassum longifructum Tseng et Lu in 1987; the specific name is, however, illegitimatized by the earlier homonym Sargassum longifructum C. Agardh (Grunow, 1915). To validate the algal species, we publish the new name S. zhangii Tseng et Lu to take place of S. longifructum Tseng et Lu.. It is a pleasure for us to name this species in honour of the late Professor Zhang Junfu.\; Sargassum zhangii Tseng et Lu nom. nov.\;Basionym: Sargassum longifructum Tseng et Lu, 1987. Oceanologia et Limnologia Sinica, 16(6):516, Fig.2, Plate I:2.\;We reported Sargassum pusillum Tseng et Lu in 1995; the specific name is, however, illegitimatized by the earlier homonym Sargassum pusillum Taylor (Taylor, 1975). To validate the algal species, we publish the new name Sargassum pumilum Tseng et Lu.\; Sargassum pumilum Tseng et Lu nom. nov.\;Basionym: Sargassum pusillum Tseng et Lu, 1995, Oceanologia et Limnolgia Sinica, 26(5):524, Fig.4, Plate I:4.\;We are grateful to Dr. P. C. Silva for notifying those nomenclature problems.
文摘The genus Sphaerotrichia Kylin(Chordariaceae, Chordariales), distributed in the China coast, was studied in details.According to the morphological features and anatomy structure, the specimens can be divided into three species, Sphaerotrichia firma(Gepp.) A.Zinova, S.huanghaiensis Ding et Lu and S.japonica Kylin.S.firma is characterized by single or tuft frond, more or less evident main branch, 20～30 cm high, 1～1.5 mm in diameter or more; the branches generally are at right angle to the main ones; loose or dense; irregularly alternated branching 2～3 times or lateral ; center cells columniform in medulla, densely arranged, consist of 2～3 or 2～5 layers of cells, cell wall thick; subcortical layer consists of 3～5 or 4～5 layers of cell; assimilated filaments often composed of 4～5 cells, with a swollen, spherical or oboval terminal cell; unilocular sporangia born on the basal cell of assimilated filaments, sessile,long oval, or long oboval, 70～80 μm long, 30～ 34 μm in diameter.S.huanghaiensis Ding et Lu is characterized by linear tuft frond, 6～23 cm high; main branch evident, often distorted, 1～1.5 mm in diameter, 1～2 alternated or lateral branching; bent branches often evident, with slightly swollen tips or growing into slender divergent branches; cell wall of the medulla thick, secondary tip-connection related to subcortical layer cells; subcortical layer thick in mature frond, consists of 5～6 layers of cells; assimilated filaments very often densely arranged, consist of 6～10 cells; unilocular sporangia born on the base of assimilated filaments,sessile or petiolate with one to two cells,pyriform or oboval,50～90 μm long, 20～30 μm in diameter.S.japonica Kylin is characterized by single or tuft frond, hollow, irregularly forked branching, 5～30 cm high; lateral or alternated branching 1～4 times with acute angle,main axes evident or not; branches 0.5～1 mm in diameter or thicker; the cell wall of medulla generally thick; subcortical layer composed of 2～3 layers of cells; assim
文摘Two new species of the genus Tinocladia Kylin (1940) T. eudesmoides Ding et Lu sp.nov. and Tinocladia zhangii Ding et Lu sp.nov., are described. T. eudesmoides is mainly characterized by its longitudinally and transversely produced sub-cortical filaments from the medulla, its short uniseriate assimilating filaments, usually composed of 6-10 cells with slightly swollen and narrow ultimate cells, and its unilocular sporangia (60-115)×55-70μm, variable in size. T. zhangii is mainly characterized by its very solid frond, not rip apart by hands, its evident longer primary branches, its short and slender secondary branches, with very evident sub-cortical layer, and filaments divided repeatedly, and its large and small unilocular sporangia, with the latter borne on an evidently swollen pedicel.
文摘Two new species of the genus Tinocladia Kylin, T. gracilis sp.nov. and T. microsporangii sp.nov., are described. T. gracilis is characterized by its slender frond, variable size, infrequently branched medullary filaments, and short assimilating filaments with 2-7 cells. T. microsporangii is characterized by its medullary cells which are slightly larger than sub-cortical ones; narrow sub-cortical layer, usually consisting of 4-6 cells and very small unilocular sporangia. The holotypes are deposited at the Herbarium of the Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.
