West Highland Flora

Holly Fern


Polystichum lonchitis

 

Polystichum lonchitis

Photo Carl Farmer
29 Jun 2003 Suardal, Skye
Upright frond c 30 mm across at widest

Occasional in upland rock crevices

Fronds c 10-60 cm long, longest pinnae c 1-3 cm

ID: Glossy and stiff, the pinnae not divided or lobed (apart from a single lobe, which may or may not be well-defined, on the upper side next to the rachis) but with outward pointing spine-like teeth.  Beware stunted specimens of Hard Shield Fern.  These always have the pinnae much more lobed than in these pictures, and have the spines on the lower side of each pinna parallel to the pinna's edge; in Holly Fern these point outwards.

Other features: Pinnae overlapping, the middle ones broadest, basal ones much smaller.  Sori in two rows on each pinna, with a round whitish covering.

 

Polystichum lonchitis

Photo Carl Farmer
13 Jul 2004 Lealt, Skye
Max width of green area c 13.5 cm

  Polystichum lonchitis

Photo Carl Farmer
18 Sep 2004 Suardal, Skye
Lowest horiz frond c 14 cm long


 

Polystichum lonchitis

Photo Carl Farmer
29 Jun 2003 Suardal, Skye

 

Polystichum lonchitis

Photo Carl Farmer
29 Jun 2003 Suardal, Skye


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