Biology:Euphrasia vigursii
| Euphrasia vigursii | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Orobanchaceae |
| Genus: | Euphrasia |
| Species: | E. vigursii
|
| Binomial name | |
| Euphrasia vigursii | |
Euphrasia vigursii, also known by its common names of Vigur's eyebright[1] or Cornish eyebright,[2] is an endangered annual of the eyebright family which is endemic to Devon and Cornwall.[3][4][5] It is a facultative hemiparasite and needs open conditions and regular grazing of larger shrubs and grasses to grow.[6][7] It is named after C. C. Vigurs, a Cornish doctor and botanist.[8]
Appearance
E. vigursii can be identified by its bright reddish-purple flowers and long glandular hairs on its upper leaves.[5] It has dull grey-green leaves, often permeated with violet or black due to anthocyanins.[9] It is considered a stable hybrid between Euphrasia micrantha and Euphrasia anglica.[9]
Distribution
E. vigursii is endemic to the Agrostis curtisii-Ulex galli heathlands of South West England,[7][10] specifically Cornwall and Devon.[5] The largest global population of E. virgusii is believed to be Lydford High Down in Dartmoor National Park, Devon,[5][10] which had 21,000 instances in 2002.[6] This dropped as low as 97 in 2004 but has since recovered to a stable level at between 250 and 350 (for comparison, levels recorded at other sites in Devon have never reached more than 10).[5] It has been recorded in the Mid Cornwall Moors SSSI, which was created in 2017.[11]
References
- ↑ "Euphrasia vigursii - Vigur's Eyebright". https://www.aphotoflora.com/d_euphrasia_vigursii_vigurs_eyebright.html. Retrieved 31 August 2020.
- ↑ McCarthy, Michael (16 May 1998). "A quiet British tragedy". https://www.independent.co.uk/life-style/a-quiet-british-tragedy-1159401.html. Retrieved 31 August 2020.
- ↑ "Mid Cornwall Moors SSSI". p. 3. https://consult.defra.gov.uk/natural-england/mid-cornwall-moors/results/mcm-confirmation-citation.pdf. Retrieved 31 August 2020.
- ↑ "Euphrasia vigursii Davey". https://www.nhm.ac.uk/our-science/data/uk-species/species/euphrasia_vigursii.html. Retrieved 31 August 2020.
- ↑ 5.0 5.1 5.2 5.3 5.4 "Dartmoor Delivery Plan for Vigur's Eyebright". https://www.dartmoor.gov.uk/__data/assets/pdf_file/0022/78232/Vigurs-Eyebright-Delivery-Plan.pdf. Retrieved 31 August 2020.
- ↑ 6.0 6.1 Fotherby, Richard; Ramsay, Paul. "Conservation of Euphrasia vigursii, an endemic plant of SW England". p. 1. CiteSeerX 10.1.1.539.163.
- ↑ 7.0 7.1 "Euphrasia vigursii Davey". https://species.nbnatlas.org/species/NBNSYS0000004163. Retrieved 31 August 2020.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedFHD - ↑ 9.0 9.1 Granados, L.; Lane, S. D. (2007). "A fine scale study of selected environmental and floristic parameters in three populations of Euphrasia vigursii (Davey), a rare annual endemic to Devon and Cornwall". Watsonia 26: 347–358. http://archive.bsbi.org.uk/Wats26p347.pdf. Retrieved 31 August 2020.
- ↑ 10.0 10.1 Ramsay, Paul; Fotherby, Richard (May 2007). "Implications of the spatial pattern of Vigur's Eyebright (Euphrasia vigursii) for heathland management". Basic and Applied Ecology 8 (3): 242–251. doi:10.1016/j.baae.2006.06.001. https://www.sciencedirect.com/science/article/abs/pii/S1439179106000442. Retrieved 31 August 2020.
- ↑ "Mid Cornwall Moors SSSI Supporting Information". Department for Environment, Food and Rural Affairs. 23 February 2017. https://consult.defra.gov.uk/natural-england/mid-cornwall-moors/supporting_documents/Mid%20Cornwall%20Moors%20supporting%20information%2023%20Feb%202017.pdf.
Wikidata ☰ Q15323778 entry
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