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Table IV

Mean percent cover (± standard error [SEM]) of plant species in the P. radiata plantations for which the percent cover exceeded 2%.

Plant species Cover % Frequency
(mean ± SEM)
Trees

Castanea sativa Miller 2.5 ± 1.4 4
Pinus radiata D. Don. 51.5 ± 6.3 7
Quercus robur L. 4.7 ± 1.7 7
Robinia pseudoacacia L. 7.8 ± 6.6 2
Salix atrocinerea Brot. 3.2 ± 2.2 4

Shrubs

Calluna vulgaris (L.) Hull 2.0 ± 0.9 5
Corylus avellana L. 4.6 ± 1.4 3
Crataegus monogyna Jacq. 3.2 ± 1.5 5
Daboecia cantabrica 5.4 ± 2.7 6
 (Hudson) C. Koch
Erica cinerea L.* 2.0 ± 0.5 5
Frangula alnus Miller 7.3 ± 4.8 6
Hypericum androsaemum L. 2.5 ± 1.8 4
Rubus sp. 22.0 ± 8.1 7
Ulex gallii Planchon 7.6 ± 3.4 5

Climbers

Hedera helix L. 4.5 ± 2.9 5
Lonicera periclymenum L.* 1.7 ± 0.6 6

Ferns

Dryopteris affinis 4.8 ± 4.8 1
 (Lowe) Fraser- Jenkins
Pteridium aquilinum (L.) Kuhn 23.9 ± 3.8 7

Herbs

Poaceae 27.6 ± 10.5 7
Potentilla erecta (L.) Raeuschel* 1.6 ± 0.8 6
*

Indicates a species that was included because of its high frequency.