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Grangelands and Cadsden Wood – 11 June 2011

Members travelled further afield on Saturday 11 June for a walk led by Roger Kemp at Grangelands, Pulpit Hill and Cadsden Wood, near Princes Risborough. The field trip was held jointly with the Bucks Invertebrate Group and National Trust Warden Jerry Page was a welcome addition to the party. The walk started across the unimproved chalk grasslands of Grangelands, where sightings included a strangely deformed Bee Orchid, Fragrant Orchids (including some unusual white specimens), Yellow-wort, Horseshoe Vetch and abundant Pyramidal Orchids. Butterfly sightings included Green Hairstreak, Common Blue, Small Heath and Brimstone. Large Roman Snails were common on the site. Walking eastwards along the Ridgeway, the group reached a viewpoint across the valley towards Chequers, with a distant view towards a hillside of native Box bushes. Next stop was the Iron Age hill fort at Pulpit Hill, with Bird’s-nest Orchids growing in the steep beech woods nearby.

 After a picnic lunch, Roger found 5 tiny Musk Orchids on chalk grassland. The group then walked across to Cadsden Wood, where White Helleborine and more Bird’s-nest Orchids were found. In the valley bottom was an open glade with abundant Wild Candytuft, Common Rockrose and a few plants of Hairy Rock-cress.

Pictures by Laurie and Jan Haseler

RDNHS excursion to Cadsden Wood and Pulpit Hill, on Sat 11  June 2011

led by Roger Kemp

Plant species observed:

Agrimonia eupatoria Agrimony
Ajuga reptans Bugle
Alliaria petiolata Garlic Mustard
Anagallis arvensis Scarlet Pimpernel
Anacamptis pyramydalis Pyramidal Orchid
Arabis hirsuta Hairy Rock-cress
Arctium lappa Greater Burdock
Arenaria serpyllifolia Thyme-leaved Sandwort
Atropa belladonna Deadly Nightshade
Blackstonia perfoliata Yellow-wort
Brachypodium sylvaticum False Brome
Briza media Quaking-grass
Bryonia dioica White Bryony
Buxus sempervirens Box
Campanula glomerata Clustered Bellflower
Carduus nutans Musk Thistle
Carlina vulgaris Carline Thistle (last year’s fruits)
Centaurea nigra Common Knapweed
Centaurea scabiosa Greater Knapweed
Cephalanthera damasonium White Helleborine
Chamerion angustifolium Rosebay Willowherb
Circaea lutetiana Enchanter’s-nightshade (in bud)
Cirsium acaule Stemless Thistle (leaves)
Cirsium vulgare Spear Thistle
Clematis vitalba Traveller’s-joy (leaves)
Clinopodium vulgare Wild Basil
Cornus sanguinea Dogwood
Dactylorhiza fuchsii Common Spotted-orchid
Dactylus glomerata Cock’s-foot
Daphne laureola Spurge-laurel (leaves)
Epipactis leptochila? Narrow-lipped Helleborine
Euphorbia amygdaloides Wood Spurge
Euphrasia officinalis Eyebright
Fragaria vesca Wild Strawberry
Fumaria densiflora Dense-flowered Fumitory
Fumaria officinalis Common Fumitory
Galium aparine Cleavers
Galium odoratum Woodruff (in fruit)
Galium verum Lady’s Bedstraw
Geranium robertianum Herb-Robert
Geum urbanum Wood Avens
Glechoma hederacea Ground Ivy
Gymnadenia conopsea Fragrant Orchid
Helianthemum nummularium Common Rockrose
Herminium monorchis Musk Orchid
Hesperis matronalis Dame’s-violet
Hieracium pilosella Mouse-ear Hawkweed
Hippocrepis comosa Horseshoe Vetch
Hypericum hirsutum Hairy St John’s-wort
Hypericum perforatum Perforate St John’s-wort (in bud)
Iberis amara Wild Candytuft
Leontodon hispidus Rough Hawkbit
Leucanthemum vulgare Oxeye Daisy
Ligustrum vulgare Wild Privet
Linum catharticum Fairy Flax
Listera ovata Twayblade
Lotus corniculatus Common Bird’s-foot-trefoil
Medicago lupulina Black Medick
Mercurialis perennis Dog’s Mercury
Myosotis arvensis Field Forget-me-not
Neonottia nidus-avis Bird’s-nest Orchid
Odontites verna Red Bartsia
Ophrys apifera Bee Orchid
Origanum vulgare Marjoram (in bud)
Oxalis acetosella Wood-sorrel (leaves)
Papaver rhoeas Common Poppy
Pentaglottis sempervirens Green Alkanet
Polygala vulgaris Common Milkwort
Potentilla anserina Silverweed
Potentilla reptans Creeping Cinquefoil
Primula veris Cowslip (in fruit)
Primula vulgaris Primrose (leaves)
Prunella vulgaris Selfheal
Ranunculus acris Meadow Buttercup
Ranunculus repens Creeping Buttercup
Reseda lutea Wild Mignonette
Sambucus nigra Elder
Sanguisorba minor Salad Burnet
Sanicula europaea Sanicle
Scrophularia nodosa Common Figwort
Senecio jacobaea Common Ragwort
Silene dioica Red Campion
Silene latifolia White Campion
Silene latifolia x S. dioica Hybrid White and Red Campion
Silene vulgaris Bladder Campion
Smyrnium olusatrum Alexanders
Solanum dulcamara Bittersweet
Stachys sylvatica Hedge Woundwort
Tamus communis Black Bryony (leaves)
Thymus polytrichus Wild Thyme
Trifolium campestre Hop Trefoil
Valeriana officinalis Common Valerian
Valerianella dentata Narrow-fruited Cornsalad
Verbascum thapsus Great Mullein
Veronica arvensis Wall Speedwell
Veronica chamaedrys Germander Speedwell
Veronica persica Common Field-speedwell

Lepidoptera and other Insects:

Ochlodes venata Large Skipper
Pyrgus malvae Grizzled Skipper
Gonepteryx rhamni Brimstone
Pieris brassicae Large White
Callophrys rubi Green Hairstreak
Aricia agestis Brown Argus
Polyommatus icarus Common Blue
Pararge aegeria Speckled Wood
Coenonympha pamphilus Small Heath
Maniola jurtina Meadow Brown
Aplocera efformata Lesser Treble-bar
Shargacucullia verbasci Mullein Moth
Pyrausta aurata Mint Moth
Oedemera nobilis Pantalon Beetle
Dolycoris baccarum Hairy Shieldbug

Robin’s pincushion: gall on wild rose bushes caused by the gall wasp Diplolepis rosae


Milvus milvus Red Kite
Phylloscopus collybita Chiffchaff
Sylvia atricapilla Blackcap
Turdus philomelos Song Thrush

 List prepared by Renée Grayer