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Olddean Common – 21 September 2013

Renée Grayer led a walk at Olddean Common, near Camberley, on Saturday 21st September. Members gathered at the end of King’s Ride, then set out across the common. Dwarf Gorse was in flower beside the track, together with both Bell Heather and Ling. Pearl Everlasting, a garden escape, has become established beside the track. Red Bartsia, Eyebright, Common Fleabane, Hoary Ragwort and a very good-sized Wild Strawberry were also amongst the sightings here. The walk was enlivened by pairs of extremely polite runners in different coloured t-shirts, who all had enough breath to spare to call out ‘Good Afternoon’ and smile as they passed. Then another pair, with blackened faces and headgear camouflaged as small pine trees, dashed off the path and (almost) melted away into the undergrowth.

Continuing along the track, a large, hairy, black and ginger Fox Moth caterpillar was spotted on the bank. Flowering Fairy Flax was a surprise find for such an acid site. It was suggested that it might have been introduced with the road-building material. Blue Fleabane was also growing nearby. At least 25 tall orchid spikes, long past flowering, were growing in the ditch at the side of the track. A few had spotted leaves and were presumably Common or Heath Spotted-orchids. The majority had leaves without spots and were perhaps Southern Marsh-orchids, or some form of hybrid. Another visit to the site earlier in the season might solve the mystery.

The route then turned downhill through a stretch of pine trees. This proved to be a good area for fungi. Brown Birch Bolete, Boletus luridus, False Chanterelle, Blusher and Shaggy Inkcap were all found here. At the bottom of the slope, the path crossed the Wishmoor Brook. Slender rush, Water-pepper, Hard-fern, Cross-leaved Heath and the orange spikes of Bog Asphodel were found in the wetter ground of the stream valley. An attractive purplish-red Russula fungus was also found here. A large mixed flock of birds passed through the streamside willows, including Blue Tits, Great Tits, Coal Tits and Long-tailed Tits. On the return walk, Marsh Cudweed was found growing in a damp hollow in the track.

RDNHS excursion to Olddean Common, nr Sandhurst (Surrey), 21th September 2013

(mainly SU8762; Blue Fleabane, orchids and Wood Sage in SU8862)

Plant species seen:

Anaphalis margaritacea Pearl Everlasting
Erica cinerea Bell Heather
Calluna vulgaris Heather
Ulex minor Dwarf Gorse
Odontites vernus Red Bartsia
Hypericum perforatum Perforate St John’s-wort
Hieracium agg. Hawkweed
Euphrasia officinalis Eyebright
Pulicaria dysenterica Common Fleabane
Polygonum aviculare Knottgrass
Melilotus officinalis Ribbed Melilot
Fragaria vesca Wild Strawberry
Tussilago farfara Colt’s-foot (leaves only)
Dryopteris filix-mas Male-fern
Pteridium aquilinum Bracken
Rubus fruticosus Bramble
Achillea millefolium Yarrow
Alchemilla mollis Alchemilla
Centaurium erythraea Common Centaury
Veronica chamaedrys Germander Speedwell (leaves only)
Cotoneaster spec. Cotoneaster
Juncus effuses Soft-rush
Leontodon autumnalis Autumn Hawkbit
Linum catharticum Fairy Flax
Salix repens Creeping Willow
Pilosella officinarum Mouse-ear Hawkweed
Senecio erucifolius Hoary Ragwort
Daucus carota Wild Carrot
Agrimonia eupatoria Agrimony
Erigeron acer Blue Fleabane
Teucrium scorodonia Wood Sage
Juncus tenuis Slender Rush
Persicaria hydropiper Water-pepper
Potentilla erecta Tormentil
Blechnum spicant Hard-fern
Potamogeton spec. Pondweed
Erica tetralix Cross-leaved Heath
Narthecium ossifragum Bog Asphodel
Iris pseudacorus Yellow Iris
Rumex obtusifolius Broad-leaved Dock
Persicaria maculosa Redshank
Gnaphalium uliginosum Marsh Cudweed

At least 25 orchids in fruit, some with spotted leaves; hybrid swarm of Dactylorhiza fuchsia (Common Spotted-orchid) and Dactylorhiza praetermissa (Southern Marsh-orchid)?

List by Renée Grayer