West Highland Flora

Scaly Male Fern


Dryopteris affinis agg.

This has now been divided into 3 species; there will be a page for each in due course.

Dryopteris borreri

Photo Carl Farmer
23 Nov 2002 Scorrybreac, Skye

Common in woods and shady places, also frequent in the open on hillsides and in mountains, especially among rocks.

Fronds typically 30-120 cm.  Pinnules 2-5 mm wide. Sori 0.5-2 mm wide.

ID: Brown scales are profuse even midway up rachis, as in pics below.  Pinnae have a dark spot at base.

Other features: Very noticeable at a distance in early summer when the yellowish-green fronds appear on the hillsides; these become darker later in the year.  Sori have a pale kidney-shaped covering (indusium).  Pinnule teeth most numerous towards end of pinnule.  A very variable plant, some specimens are close to Male Fern in appearance.

 

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Dryopteris borreri

Photo Carl Farmer
1 Sep 2002 Scorrybreac, Skye

     
     
Dryopteris borreri

Photo Carl Farmer
23 Nov 2002 Scorrybreac, Skye

  Dryopteris borreri

Photo Carl Farmer
23 Nov 2002 Scorrybreac, Skye

     
Dryopteris borreri

Photo Carl Farmer
23 Nov 2002 Scorrybreac, Skye
 

Showing dark spot at base of pinna (on pinna midrib where it joins main stem)

 

Dryopteris borreri

Photo Carl Farmer
23 Nov 2002 Scorrybreac, Skye
 

Showing dark spot again and the crowded shaggy scales, which on most fern species are only crowded like this at the lower end of the stalk, before the pinnae begin.


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