Cnoc Roll area

Just south of Duntulm is Cnoc Roll and to the south of that an old birch woodland. This is in tetrad NG47B and yesterday Skye Botany Group visited the area to improve a rather poorly recorded tetrad. It was a bit wet and windy but could have been far worse and we recorded 177 vascular plants of which 84 were new to the tetrad and six new to hectad NG47 (with a few qualifications around subspecies and aggregates).

Perhaps the most surprising of the additions (surprising that it was an addition, not that it was there) was Salix cinerea subsp. oleifolia (Rusty Willow) which is common across Skye at low altitudes.

We found Rose Pea Gall on Rosa sherardii (Sherard’s Downy-rose). There are two smooth RPGs (like this one) caused by gall wasps which “cannot be safely distinguished without rearing the adult”. There were no larvae or pupae so it goes down as Diplolepis eglanteriae agg. There are not many records for either species or the aggregate in Scotland.

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Rose Pea Gall on Rosa sherrdii

Botanists and horticulturalists are used to the concept of National Collections e.g. of Willows or Oaks. We think we may have spotted the National Bath Collection (thanks Wheldon!) yesterday:

National Bath Collection

On the way I had stopped at Lochan nan Dùnan to see Seth’s Lythrum portula (Water-purslane). As he had said, there is a great deal of it around and in the lochan.

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Lythrum portula (Water-purslane)

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