Herbario Virtual del Mediterráneo Occidental
Àrea de Botànica, Departament de Biologia, Universitat de les Illes Balears
Asplenium petrarchae (Guérin) D.C.
Family : ASPLENIACEAE
Genus : Asplenium
Catalan common name : Falzia.
Province distribution : Balearic Islands.
General distribution : Mediterranean
Flowering time : January. February. March. April. May. June. September. October. November. December.
Life-forms : Hemicryptophyte.
Habitat : Rock creviceses.
IUCN Category : Datos insuficientes
Characteristics : A fern with fronds reaching 15 cm. in length, and glandulous. The petiole is the same or less than half the length of the frond. Lamina is oblong and dark green in colour (pinnated). Pinnae opposite, with a rounded apex and lobulate margins. Sori are elliptic with dentate indusia Can be distinguished from A. tricomanes by its much divided pinnae, and a green leaf rachis on the superior half instead of entirely blackish. In the Balearics, we have the subspecies bivalens which is very difficult to distinguish from the other subsp., is smaller and has a lanceolate lamina.
