Herbario Virtual del Mediterráneo Occidental

Àrea de Botànica, Departament de Biologia, Universitat de les Illes Balears

Isoetes duriei Bory


Genus : Isoetes

Isoetes duriei Bory

    Province distribution : Balearic Islands. Barcelona. Gerona.

    Distribution in the islands : Minorca.

    General distribution : Mediterranean

    Flowering time : February. March. April. May.

    Life-forms : Geophyte.

    Habitat : Wet silicicolous fields.

    IUCN Category : Poco preocupante

    Characteristics : Isoetes duriei is a small plant made up of rosette of linear leaves along the ground; the leaves are rigid and slightly curved spirally. The leaves are found on a very short stem that remains underground. The sporangii can be found at the base of the leaves; the female spores are large - nearly 0.5 mm - and can be seen by the naked eye. Isoetes live in very moist soils which can be temporarilly stagnant, generally along pond-sides. To determine the species level it is essential to see the ornamentation of the spores (a pocket magnifying glass will suffice).

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Patrocinador: Fundació Sa Nostra