More from Day 1 of the Summer Meeting, where Alistair Godfrey gave a talk on The history of recording in Perthshire and some of the plants our botanists were likely to see during their visit.
Image: J. Crellin
Jon Shanklin reports that "Rannoch Moor has many small pools which provide homes to plants such as Scheuchzeria palustris (discovered in
but now extinct there) and Carex limosa. There are remnants of old Caledonian pine
forest, Silene acaulis and Salix
lanata are found in montane regions, and there are interesting plants on Ben Lawers, though it takes some effort
to get to the top! Agrimonia eupatoria - widespread in southern England - is largely coastal in the north and Scotland,
though it is found round some of the larger lochs in Perthshire, which
ameliorate the climate.
|Martin & Sally recording on the Shiants|
Image: L. Marsh
"The plants themselves provide the earliest records, for example a Bronze Age logboat made from a tall oak. Gaelic culture leaves a residue in place names, with several named for trees, eg Fearna for Alder. The earliest written records date from 1667 when Robert Sibbald and Andrew Balfour established a botanic garden in
Edinburgh. Alistair then took us through a chronology of
notable botanists formerly active in the region, along with stories of their
travels. Charles McIntosh, for example, enthused
Beatrix Potter who illustrated some fungi for him".
"Martin Robinson picked up the thread with his talk on The rare plants of Perthshire. He defined rarity by looking at the number of hectads in Perthshire compared to the
UK total and
took us through his Top 10. Carex vaginata has its stronghold in the
central to southern Highlands, so it can be
quite common in Perthshire when you are in the right habitat. Carex
norvegica is another sedge with a northern centre of distribution. Astragalus
alpinus has only five sites in the country, but some may see it on Friday,
although in some locations it is declining due to competition from
graminoids. In this case lack of grazing
may be contributing to the decline. Gentiana nivalis only
grows in two areas. Blue Heath Phyllodoce caerulea was only known to
grow in one site and is difficult to find, as it is a shy flowerer and tends to
grow with Empetrum nigrum. It is more obvious when in flower. In the 1960s a further site was discovered,
so there may be others.
Image: C. Robson
"Kobresia simpliciuscula prefers the band of calcareous ground running through the
growing in open stony flushes. It also
grows in Upper Teesdale. The next two are both Ben Lawers
specialities: Carex atrofusca and Carex microglochin, plants of the high
flushes. Schoenus ferrugineus was historically only known around Loch
Tummel, but after hydro-electric works that might destroy it some was
transplanted, although it only survives at two of these sites, then it was
found two new sites. Finally the top
rarity was Polygonatum verticilatum which has
twelve extant sites, often in gullies on bare leaf litter. Some of the sites are quite difficult to get
to! There has definitely been a decline,
so the RBGE has propagated some from a rhizome and returned it to the wild,
where in at least one site it has done well.
"A few other plants might be included, eg Scheuchzeria palustris and Bartsia alpina, though these mostly occur outside Perthshire. There is one calcareous crag which has Oxytropis campestris and Veronica fruticans. Oxytropis halleri might be seen on Ben Vrackie, along with Cerastium alpinum and Astragalus alpinus. Other rarities include Minuartia rubella, Sedum villosum, Lychnis visicaria, Carex capillaris, Gentianella amarella, Potentilla krantzii, Tofieldia pusilla and Dactylorhiza incarnata".
Thanks Jon - more to follow!
Post a Comment
Please leave a comment!