The Experts below are selected from a list of 60 Experts worldwide ranked by ideXlab platform

Deming Wang - One of the best experts on this subject based on the ideXlab platform.

  • vegetative characters growth habit and microsporangiate strobilus of lycopsid minostrobus chaohuensis
    PLOS ONE, 2015
    Co-Authors: Meicen Meng, Deming Wang
    Abstract:

    Late Devonian Minostrobus chaohuensis is one of the earliest monosporangiate-strobilate isoetaleans. Based on new material of this plant, the vegetative axis and microsporangiate strobilus are studied in detail, and the whole plant knowledge is summarized. The vegetative axis is isotomously branched. The stem is up to 55 mm in diameter with helically arranged Leaf cushions. Stems and thick branches bear long fusiform Leaf cushions and interareas with vertical linear ornamentations. A ligule pit, oblanceolate Leaf Scar, and vascular bundle Scar appear on the Leaf cushion. Distal axes have persistent lanceolate leaves and rhombic Leaf bases. The microsporangiate strobilus is cylindrical in shape, possesses sporophyll with alate pedicel and long triangular lamina, uniseriate sporangial wall, subarchesporial pad inside the sporangium, and microspore with cingulum. Based on comparisons with other isoetaleans, the usage of the terms “Leaf cushion” and “Leaf base” is discussed, and Minostrobus chaohuensis is considered as a tree-like lycopsid. It suggests that arborescent isoetaleans with monosporangiate strobili had appeared and diversified in the Late Devonian. The multi-dichotomous branching system of Minostrobus provides new data on the evolution of growth architecture in rhizomorphic lycopsids.

  • Diagram of the Leaf cushion of Minostrobus chaohuensis.
    2015
    Co-Authors: Meicen Meng, Deming Wang, Jian-xin Yao
    Abstract:

    Oblanceolate Leaf Scar, ligule pit (Lp) and vascular Scar (Vs). Scale bar = 1 mm.

Yao Jian-xin - One of the best experts on this subject based on the ideXlab platform.

  • Vegetative Characters, Growth Habit and Microsporangiate Strobilus of Lycopsid Minostrobus chaohuensis
    plos one, 2015
    Co-Authors: Meng Mei-cen, Wang De-ming, Yao Jian-xin
    Abstract:

    Late Devonian Minostrobus chaohuensis is one of the earliest monosporangiate-strobilate isoetaleans. Based on new material of this plant, the vegetative axis and microsporangiate strobilus are studied in detail, and the whole plant knowledge is summarized. The vegetative axis is isotomously branched. The stem is up to 55 mm in diameter with helically arranged Leaf cushions. Stems and thick branches bear long fusiform Leaf cushions and interareas with vertical linear ornamentations. A ligule pit, oblanceolate Leaf Scar, and vascular bundle Scar appear on the Leaf cushion. Distal axes have persistent lanceolate leaves and rhombic Leaf bases. The microsporangiate strobilus is cylindrical in shape, possesses sporophyll with alate pedicel and long triangular lamina, uniseriate sporangial wall, subarchesporial pad inside the sporangium, and microspore with cingulum. Based on comparisons with other isoetaleans, the usage of the terms "Leaf cushion" and "Leaf base" is discussed, and Minostrobus chaohuensis is considered as a tree-like lycopsid. It suggests that arborescent isoetaleans with monosporangiate strobili had appeared and diversified in the Late Devonian. The multi-dichotomous branching system of Minostrobus provides new data on the evolution of growth architecture in rhizomorphic lycopsids.SCI(E)PubMed0ARTICLEdmwang@pku.edu.cn; yaojianxin@gmail.com3e01221671

Meng Mei-cen - One of the best experts on this subject based on the ideXlab platform.

  • New insights into the heterosporous lycopsid Changxingia from the Upper Devonian Wutong Formation of Zhejiang Province, China
    PLANT SYSTEMATICS AND EVOLUTION, 2017
    Co-Authors: Wang De-ming, Meng Mei-cen, Qin Min, Le Liu, Ferguson, David K.
    Abstract:

    A heterosporous lycopsid plant is described from the Upper Devonian (Famennian) Wutong Formation, Changxing County, northern Zhejiang Province, China. The plant is known for its terminal and many detached megasporangiate strobili, most of which do not have sporophylls preserved. Some megasporangiate strobili are closely associated with a vegetative axis bearing Leaf cushions and with a mass of microspores. Because of the monosporangiate strobili, the present lycopsid belongs to the Dichostrobiles of the IsoNtales sensu lato. This lycopsid conforms to Changxingia in the vegetative leaves, Leaf cushions (including Leaf Scar and ligule pit), some parts of the megasporophyll (pedicel, heel and lamina), the megasporangium and the megaspores, although the branching pattern of axes, the arrangement and other parts of megasporophyll are still unknown. The fossils are described as Changxingia sp., and this genus is expanded with character of microspore. Hence, the previous and present data indicate that the earliest lycopsids with monosporangiate strobili from the Upper Devonian of China are consistent in Lagenicula megaspores with gula and Lycospora microspores with equatorial cingulum. In contrast, the Carboniferous lycopsids with monosporangiate strobili in Euramerica and Cathaysia show great diversification of both megaspores and microspores.National Basic Research Program of China of the Ministry of Science and Technology of China [2012CB821900]SCI(E)ARTICLE111-2130

  • Vegetative Characters, Growth Habit and Microsporangiate Strobilus of Lycopsid Minostrobus chaohuensis
    plos one, 2015
    Co-Authors: Meng Mei-cen, Wang De-ming, Yao Jian-xin
    Abstract:

    Late Devonian Minostrobus chaohuensis is one of the earliest monosporangiate-strobilate isoetaleans. Based on new material of this plant, the vegetative axis and microsporangiate strobilus are studied in detail, and the whole plant knowledge is summarized. The vegetative axis is isotomously branched. The stem is up to 55 mm in diameter with helically arranged Leaf cushions. Stems and thick branches bear long fusiform Leaf cushions and interareas with vertical linear ornamentations. A ligule pit, oblanceolate Leaf Scar, and vascular bundle Scar appear on the Leaf cushion. Distal axes have persistent lanceolate leaves and rhombic Leaf bases. The microsporangiate strobilus is cylindrical in shape, possesses sporophyll with alate pedicel and long triangular lamina, uniseriate sporangial wall, subarchesporial pad inside the sporangium, and microspore with cingulum. Based on comparisons with other isoetaleans, the usage of the terms "Leaf cushion" and "Leaf base" is discussed, and Minostrobus chaohuensis is considered as a tree-like lycopsid. It suggests that arborescent isoetaleans with monosporangiate strobili had appeared and diversified in the Late Devonian. The multi-dichotomous branching system of Minostrobus provides new data on the evolution of growth architecture in rhizomorphic lycopsids.SCI(E)PubMed0ARTICLEdmwang@pku.edu.cn; yaojianxin@gmail.com3e01221671

Meicen Meng - One of the best experts on this subject based on the ideXlab platform.

  • vegetative characters growth habit and microsporangiate strobilus of lycopsid minostrobus chaohuensis
    PLOS ONE, 2015
    Co-Authors: Meicen Meng, Deming Wang
    Abstract:

    Late Devonian Minostrobus chaohuensis is one of the earliest monosporangiate-strobilate isoetaleans. Based on new material of this plant, the vegetative axis and microsporangiate strobilus are studied in detail, and the whole plant knowledge is summarized. The vegetative axis is isotomously branched. The stem is up to 55 mm in diameter with helically arranged Leaf cushions. Stems and thick branches bear long fusiform Leaf cushions and interareas with vertical linear ornamentations. A ligule pit, oblanceolate Leaf Scar, and vascular bundle Scar appear on the Leaf cushion. Distal axes have persistent lanceolate leaves and rhombic Leaf bases. The microsporangiate strobilus is cylindrical in shape, possesses sporophyll with alate pedicel and long triangular lamina, uniseriate sporangial wall, subarchesporial pad inside the sporangium, and microspore with cingulum. Based on comparisons with other isoetaleans, the usage of the terms “Leaf cushion” and “Leaf base” is discussed, and Minostrobus chaohuensis is considered as a tree-like lycopsid. It suggests that arborescent isoetaleans with monosporangiate strobili had appeared and diversified in the Late Devonian. The multi-dichotomous branching system of Minostrobus provides new data on the evolution of growth architecture in rhizomorphic lycopsids.

  • Diagram of the Leaf cushion of Minostrobus chaohuensis.
    2015
    Co-Authors: Meicen Meng, Deming Wang, Jian-xin Yao
    Abstract:

    Oblanceolate Leaf Scar, ligule pit (Lp) and vascular Scar (Vs). Scale bar = 1 mm.

Wang De-ming - One of the best experts on this subject based on the ideXlab platform.

  • New insights into the heterosporous lycopsid Changxingia from the Upper Devonian Wutong Formation of Zhejiang Province, China
    PLANT SYSTEMATICS AND EVOLUTION, 2017
    Co-Authors: Wang De-ming, Meng Mei-cen, Qin Min, Le Liu, Ferguson, David K.
    Abstract:

    A heterosporous lycopsid plant is described from the Upper Devonian (Famennian) Wutong Formation, Changxing County, northern Zhejiang Province, China. The plant is known for its terminal and many detached megasporangiate strobili, most of which do not have sporophylls preserved. Some megasporangiate strobili are closely associated with a vegetative axis bearing Leaf cushions and with a mass of microspores. Because of the monosporangiate strobili, the present lycopsid belongs to the Dichostrobiles of the IsoNtales sensu lato. This lycopsid conforms to Changxingia in the vegetative leaves, Leaf cushions (including Leaf Scar and ligule pit), some parts of the megasporophyll (pedicel, heel and lamina), the megasporangium and the megaspores, although the branching pattern of axes, the arrangement and other parts of megasporophyll are still unknown. The fossils are described as Changxingia sp., and this genus is expanded with character of microspore. Hence, the previous and present data indicate that the earliest lycopsids with monosporangiate strobili from the Upper Devonian of China are consistent in Lagenicula megaspores with gula and Lycospora microspores with equatorial cingulum. In contrast, the Carboniferous lycopsids with monosporangiate strobili in Euramerica and Cathaysia show great diversification of both megaspores and microspores.National Basic Research Program of China of the Ministry of Science and Technology of China [2012CB821900]SCI(E)ARTICLE111-2130

  • Vegetative Characters, Growth Habit and Microsporangiate Strobilus of Lycopsid Minostrobus chaohuensis
    plos one, 2015
    Co-Authors: Meng Mei-cen, Wang De-ming, Yao Jian-xin
    Abstract:

    Late Devonian Minostrobus chaohuensis is one of the earliest monosporangiate-strobilate isoetaleans. Based on new material of this plant, the vegetative axis and microsporangiate strobilus are studied in detail, and the whole plant knowledge is summarized. The vegetative axis is isotomously branched. The stem is up to 55 mm in diameter with helically arranged Leaf cushions. Stems and thick branches bear long fusiform Leaf cushions and interareas with vertical linear ornamentations. A ligule pit, oblanceolate Leaf Scar, and vascular bundle Scar appear on the Leaf cushion. Distal axes have persistent lanceolate leaves and rhombic Leaf bases. The microsporangiate strobilus is cylindrical in shape, possesses sporophyll with alate pedicel and long triangular lamina, uniseriate sporangial wall, subarchesporial pad inside the sporangium, and microspore with cingulum. Based on comparisons with other isoetaleans, the usage of the terms "Leaf cushion" and "Leaf base" is discussed, and Minostrobus chaohuensis is considered as a tree-like lycopsid. It suggests that arborescent isoetaleans with monosporangiate strobili had appeared and diversified in the Late Devonian. The multi-dichotomous branching system of Minostrobus provides new data on the evolution of growth architecture in rhizomorphic lycopsids.SCI(E)PubMed0ARTICLEdmwang@pku.edu.cn; yaojianxin@gmail.com3e01221671