| Author | Valentine, D.H. |
| Title | Geographical distribution and isolation in some British ecospecies |
| Type | Chapter in… |
| Source | Dandy, J.E. The Watsonian vice-county system, 9pp, The Study of the Distribution of British Plants |
| Review (by Malcolm Storey) | Considers pair of species which hybridise to form hybrid swarms. |
| Notes & Purpose | Status | Taxon | English | Classification |
|---|---|---|---|---|
| Current | Silene dioica | Red Campion | Plantae: Caryophyllales: Caryophyllaceae | |
| Current | Silene latifolia | White Campion | Plantae: Caryophyllales: Caryophyllaceae | |
| Current | Silene latifolia x dioica = S. x hampeana | hybrid campion | Plantae: Caryophyllales: Caryophyllaceae | |
| Current | Silene uniflora | Sea Campion | Plantae: Caryophyllales: Caryophyllaceae | |
| Current | Silene vulgaris | Bladder Campion | Plantae: Caryophyllales: Caryophyllaceae | |
| Current | Silene vulgaris x uniflora | a sea campion | Plantae: Caryophyllales: Caryophyllaceae | |
| Current | Primula elatior | Oxlip | Plantae: Ericales: Primulaceae | |
| Current | Primula vulgaris | Primrose | Plantae: Ericales: Primulaceae | |
| Current | Primula vulgaris x elatior = P. x digenea | a primrose | Plantae: Ericales: Primulaceae | |
| Current | Quercus petraea | Sessile Oak | Plantae: Fagales: Fagaceae | |
| Current | Quercus petraea x robur = Q. x rosacea | hybrid oak | Plantae: Fagales: Fagaceae | |
| Current | Quercus robur | Pedunculate Oak | Plantae: Fagales: Fagaceae | |
| Current | Salix caprea | Goat Willow, Sallow | Plantae: Malpighiales: Salicaceae | |
| Current | Salix viminalis | Osier | Plantae: Malpighiales: Salicaceae | |
| Current | Salix viminalis x caprea = S. x smithiana | broad-leaved osier | Plantae: Malpighiales: Salicaceae | |
| Current | Viola hirta | Hairy Violet | Plantae: Malpighiales: Violaceae | |
| Current | Viola hirta x odorata (V. x scabra) | a violet | Plantae: Malpighiales: Violaceae | |
| Current | Viola odorata | Sweet Violet | Plantae: Malpighiales: Violaceae | |
| Current | Epilobium hirsutum | Great Willowherb, Greater Hairy Willowherb | Plantae: Myrtales: Onagraceae | |
| Current | Epilobium hirsutum x parviflorum = E. x subhirsutum | a species hybrid of flowering plants | Plantae: Myrtales: Onagraceae | |
| Current | Epilobium parviflorum | Hoary Willowherb | Plantae: Myrtales: Onagraceae | |
| Current | Geum rivale | Water Avens | Plantae: Rosales: Rosaceae | |
| Current | Geum rivale x urbanum = G. x intermedium | hybrid avens | Plantae: Rosales: Rosaceae | |
| Current | Geum urbanum | Wood Avens, Herb Bennet | Plantae: Rosales: Rosaceae | |
| Current | Saxifraga hirsuta | Kidney Saxifrage | Plantae: Saxifragales: Saxifragaceae | |
| Current | Saxifraga spathularis | St Patrick’s-cabbage | Plantae: Saxifragales: Saxifragaceae | |
| Current | Saxifraga spathularis x hirsuta = S. x polita | false Londonpride | Plantae: Saxifragales: Saxifragaceae | |
| Current | Nuphar lutea | Yellow Water-lily | Plantae: Nymphaeales: Nymphaeaceae | |
| Current | Nuphar lutea x pumila = N. x spenneriana | hybrid water-lily | Plantae: Nymphaeales: Nymphaeaceae | |
| Current | Nuphar pumila | Least Water-lily | Plantae: Nymphaeales: Nymphaeaceae |
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