Isoetes Isoetes, L.
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https://doi.org/10.5281/zenodo.302862 |
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https://treatment.plazi.org/id/1213417E-FFF6-FFF4-C994-F8ED42BEC15C |
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Plazi |
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Isoetes Isoetes |
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1. I. lacustris L. View in CoL , Sp. Pl. 1100 (1753).
Aquatic; stem 2-lobed. Leaves 8-25(-40) cm x 3-5 mm, erect or rarely patent and recurved, coarse, subterete, tapering to apex; stomata usually absent; membranous margin wide at base, abruptly narrowing above sporangium; ligule short, triangular, often 3-lobed. Sporangium only partially covered by velum; megaspores 530- 700/2, rugose; microspores yellow-brown, smooth or with fine irregular furrows. 2n —c. 110. Up to 8 m deep in lakes and pools . dp N. & C. Europe, extending locally southwards to Spain, N. Italy and S. W. Bulgaria. Au Be Br Bu Cz Da Fe Ga Ge?Gr Hb He Ho Hs Is No Po?Rm Rs (N, B, C) Su.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Isoetes Isoetes
| Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1964 |
I. lacustris
| L. 1753: 1100 |