Archive for July, 2014

Reaching the Parts Other Botanists Have not Reached

July 10, 2014

During last winter, whilst looking at unrecorded tetrads, I registered that there is a small part of the 10 km square NG82 on Skye with no records. According to the Biological Records Centre tetrad NG82B has 0.2% land and NG82C has 1.35% land. A full tetrad is 2 x 2 km or 4 million square metres so 0.2% is 8,000 sq m e.g. 90 x 90 m. There is nothing remotely like that, but I must ask BRC where they measure from as things below the high water mark are clearly of interest to them, if less commonly so for me. Anyway, I managed 21 species in N82B – sadly not including my “marker” species Succisa pratensis (Devil’s-bit Scabious) that generally shows where I have been – but it did have Blysmus and Danthonia..

NG82C was more productive and had Juniperus communis subsp. communis (Common Juniper) which is anything but common here, unlike Juniperus communis subsp. nana (Dwarf Juniper), and only 3 km from another specimen at Kylerhea.

Juniperus communis subsp. communis

Juniperus communis subsp. communis

As well as these unrecorded bits of tetrads, the adjacent ones of NG72W and X were in need of work – W had 7 recorded taxa, 5 of which were mine from when I strayed in from another tetrad in 2010, and X had no records. These have both been much improved today and records were made of the many butterflies and dragonflies and a shrew.

There was a plant of Juncus effusus (Soft-rush) on which each inflorescence was guarded by a spider – perhaps a crab spider – but sadly I failed dismally to get a usable image.

Even if botanists haven’t been there before, there were derelict buildings from longer ago:IMG_3878a

This one with three Aspleniums on the walls

A. adiantum-nigrum, A. ruta-muraria & A. trichomanes subsp. quadrivalens

A. adiantum-nigrum, A. ruta-muraria & A. trichomanes subsp. quadrivalens

The secondIMG_3885q

with lots of ivy showing an unusual effect on leaf size – a sudden transition to smaller leaves lower down the wall:

Hedera helix (s.s.)

Hedera helix (s.s.)

and this small leaf size was also apparent across the floor of the building:Hedera 2

Otherwise, there was an interesting Equisetum that I need to have a closer look at but may just be E. palustre (Marsh Horsetail) behaving badly:equisetum TC

and Suaeda maritima (Annual Sea-blite)

Suaeda maritima

Suaeda maritima

Moth Trap

July 10, 2014

The night before last I put the moth trap out and caught 14 moths. One, probably a carpet, flew away as soon as I opened the box. The remainder comprised 2 x Mottled Beauty, one each of Triple-spotted Clay, Flame Carpet, Gothic, Large Yellow Underwing, Spectacle, Peppered Moth, Smoky Wainscot plus 1 undetermined and three micros. Several of these were firsts for my trap and the Gothic is, according to Brian, the first “Skye” record since 1975. Sadly, I only got a very poor image of it:

Gothic

Gothic

The three micros were one Bramble Shoot Moth and two probable Bee Moths (thanks, Keith).

Bramble Shoot Moth

Bramble Shoot Moth

Sgurr a’Mhadaidh Ruadh Area – Afterthought

July 9, 2014

As Terry pointed out at the time, there was one spot when we were within a few metres of six species of saxifrage:

Saxifraga aizoides (Yellow Saxifrage)
Saxifraga cespitosa (Tufted Saxifrage)
Saxifraga hypnoides (Mossy Saxifrage)
Saxifraga nivalis (Alpine Saxifrage)
Saxifraga oppositifolia (Purple Saxifrage)
Saxifraga stellaris (Starry Saxifrage)

This image shows S. cespitosa and S. nivalis (and Cerastium fontanum for a bit of bathos).

Saxifraga cespitosa & S. nivalis

Saxifraga cespitosa & S. nivalis

And at about 475 m, this is a new low-altitude records for S. cespitosa.

 

Sgurr a’Mhadaidh Ruadh Area

July 9, 2014

The Skye Botany Group went yesterday to the Trotternish Ridge near Sgurr a’Mhadaidh Ruadh to see the only known sites in VC104 for two Nationally Rare plants, Woodsia alpina (Alpine Woodsia) and the recently discovered Saxifraga cespitosa (Tufted Saxifrage). The former looks unchanged from its original discovery in 2001 and we established that there is a good population of the latter, now fruiting rather than flowering.

Woodsia alpina

Woodsia alpina

Saxifraga cespitosa

Saxifraga cespitosa

We had other nice finds like Epilobium alsinifolium (Chickweed Willowherb), Juncus triglumis (Three-flowered Rush), Koenigia islandica (Iceland-purslane), Poa glauca (Glaucous Meadow-grass), Polystichum lonchitis (Holly-fern) and Saxifraga nivalis (Alpine Saxifrage).

Epilobium alsinifolium

Epilobium alsinifolium

That Smut

July 9, 2014

You may recall my showing a picture of a smut on Carex flacca recently. Here is a better picture of the same infected plant:

Anthracoidea pratensis Photo:J. Hawell

Anthracoidea pratensis        Photo:J. Hawell

Martyn Ainsworth tells me that for England, Anthracoidea pratensis is represented by one collection (Windsor) in 1974 and there are three Scottish sites. Scottish collections finish in 1874 so it would be very useful to have a voucher to support the fact that it isn’t extinct in Scotland. So it is back to Kishorn for a specimen.

He is hoping to have this species included in the forthcoming “Lost & Found Project” for species of fungi in Britain that are known only
from a small number of collections, and/or have not been seen for many years.

He also lists the following species of Anthracoidea for which voucher specimens would be greatly welcomed should you ever be lucky enough to encounter them. The name follows the sedge host except in the two species shown.

A. bigelowii
A. capillaris
A. caryophylleae
A. limosa
A. pseudirregularis (on Carex pallescens)
A. pulicaris
A. scirpi (on Trichophorum germanicum sens. lat.)

There is not quite the same level of interest in its counterparts on Carex echinata and C. panicea both of which I have seen locally, the one on C. echinata being common. For these, records rather than voucher specimens will do nicely.

Sunset

July 6, 2014

I witter on about the direction of sunset this far north changing so much during the year that I can estimate the date from where the sun sets over Skye, but now I have found suncalc.net from which I can show you:

Raasay midsummer sunset

Raasay midsummer sunset (Red line)

 

Raasay midwinter sunset

Raasay midwinter sunset (Red line)

 

Beinn Edra

July 6, 2014

At 611 m, Beinn Edra is not as high as The Storr but it has its own character and flora. This area is the local heartland for the Nationally Scarce Sibbaldia procumbens (Sibbaldia or Least Cinquefoil).  Until yesterday I had never seen it in flower – and I remember Carl saying the same thing.  Yesterday I discovered why. One plant had a flower on it:

Sibbaldia procumbens

Sibbaldia procumbens in flower

but many had fruits with ripe seeds that spilled out on touch:

Sibbaldia procumbens in fruit

Sibbaldia procumbens in fruit

All the books I have that give a flowering time say “July-August” or in one case “July”. Clearly that is incorrect on Skye at least. I suspect that once the seeds are shed the remaining husks of the fruits will break off and blow away – which is why come August I see no flowers or fruits.

There were lots of other rare and scarce plants as one expects on the Trotternish Ridge, but I was particularly pleased to find Poa alpina (Alpine Meadow-grass) in an area where it had not been recorded since 1967 – and at that time only given NG46 as a grid reference.

Poa alpina

Poa alpina

The arrows mark the inflorescence and the bluish leaves – the bulk of grass leaves are Deschampsia.

As on my last visit, much of the Salix herbacea (Dwarf Willow) was infected by the sawfly Pontania herbaceae giving rise to bright red berry-like growths.

Storr Lochs and Flodigarry

July 3, 2014

Today I had a recce at Storr Lochs ready for tomorrow’s planned SWT walk, which I have now cancelled as the forecast is very poor. This is a pity as I found various Potamogeton spp. as well as other standard marsh and water plants.  More interestingly I think I spotted two under-recorded hybrids: a horsetail, Equisetum x rothmaleri (E. arvense x palustre) and a deergrass, Trichophorum cespitosum nothosubsp. foersteri (T. cespitosum x germanicum). I shall send both away for expert opinion.

It was not a day for much plant photography as the wind was whipping things about. However, I did spot this, which I think may be an early instar of Emperor Moth, though I am happy to be corrected:

Emperor?

Emperor?

I headed north to a coastal tetrad with no records north of Flodigarry. This had a rich burn and impressive sea cliffs, though these were less interesting botanically than one might have hoped. Highlights included Asplenium marinum (Sea Spleenwort), Equisetum telmateia (Great Horsetail), Ligusticum scoticum (Scots Lovage) and an area of planted woodland with at least 17 species of tree and shrub.

IMG_3777aIMG_3778a

The adjacent tetrad to the west is also somewhat limited in terms of previous records so I improved it a bit and re-found Lemna minor (Common Duckweed) and Glyceria declinata (Small Sweet-grass) but not Veronica beccabunga (Brooklime).

A sea of Comarum palustre (Marsh Cinquefoil):

Comarum palustre

Comarum palustre

January to June 2014

July 3, 2014

A summary of botanical matters in VC104 in the first half of this year is now on my home page. It is a distillation of botanical matters from this blog so there will be no surprises for regular readers.

Tomorrow’s SWT Walk

July 3, 2014

Tomorow’s walk at Storr Lochs is cancelled as heavy rain is forecast.  Apologies. I will perhaps organise something later in the season to make up.