West Highland Flora

Rustyback Fern


Ceterach officinarum

 

Ceterach officinarum

Photo © Carl Farmer
29 Jun 2003 Suardal, Skye
Maximum width of any frond in pic = 11 mm

Quite frequent in Cowal, rare elsewhere.  On mortared walls or (in Skye) quarry rubble.

Fronds 3-20 cm long

ID: Back of frond covered with rust-coloured scales

Other features: Spores in ellpitical bundles along the veins, hidden by the scales, without a covering indusium.

 

Ceterach officinarum

Photo © Carl Farmer
29 Jun 2003 Suardal, Skye

  Ceterach officinarum

Photo © Carl Farmer
29 Jun 2003 Suardal, Skye

  Frond temporarily held upside down with stone to show underside


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