WebThe earliest lycophytes included Baragwanathia and Protolepidodendron, dating from the early Devonian Period. Both were small herbaceous plants. During the Carboniferous Period, which followed (beginning 358.9 million years ago), the treelike forms of the … WebFeb 26, 2016 · Lycophyte roots appear earlier in the fossil record than those of euphyllophytes ( Boyce, 2005; Raven and Edwards, 2001) and several authors have suggested that they evolved from aerial stems or axes ( Stewart and Rothwell, 1993; Gensel and Berry, 2001; Gensel et al., 2001; Seago and Fernando, 2013 ).

Early lycophyte evolution -ORCA

Within the broadly defined lycophyte group, species placed in the class Lycopodiopsida are distinguished from species placed in the Zosterophyllopsida by the possession of microphylls. Some zosterophylls, such as the Devonian Zosterophyllum myretonianum, had smooth stems (axes). Others, such as Sawdonia ornata, had flap-like extensions on the stems ("enations"), but with… WebMar 21, 2013 · Early lycophyte evolution. American Fern Journal. 91 (3): 74-96. Judd, W. S., C. S. Campbell, E. A. Kellogg, P. F. Stevens, and M. J. Donoghue. 2008. Plant Systematics: A Phylogenetic Approach. 3rd edition. Sinauer Associates, Inc. Sunderland, MA. Keeley, J. E. 1981. Isoetes howellii: A submerged aquatic CAM plant? ip address lookup table

The evolution of lycopsid rooting structures: conservatism and ...

WebLycophytes, comprising the groups historically known as the lycopsids and zosterophylls, have the longest history of any group of vascular land plants. The early evolution of the group is reviewed concentrating on the Late Silurian and Devonian record of Lycopsida and Zosterophyllopsida. WebNov 30, 2016 · The evolution of rooting structures was a crucial event in Earth's history, increasing the ability of plants to extract water, mine for nutrients and anchor above … WebLiverworts, mosses, and hornworts are seedless, non-vascular plants that likely appeared early in land plant evolution. Vascular plants developed a network of cells that conduct water and solutes. The first vascular plants appeared in the late Ordovician and were probably similar to lycophytes, which include club mosses (not to be confused with ... ip address math