Arrondeau 1863. Euphrasia gracilis & E. tetraquetra original species descriptions.
This is an archive of publications available free of charge for academic use, and will also feature material to accompany the Handbook.
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Arrondeau 1863 (107.37 KB / PDF)
Bobear 1966. Variation in the Irish Euphrasia. American Journal of Botany (Brief comment).
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Bobear 1966 (8.21 MB / PDF)
Brown 1810. Prodromus floræ Novæ Hollandiæ et Insulæ Van-Diemen : exhibens characteres plantarum quas annis 1802-1805.
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Brown 1810 (1.2 MB / PDF)
Bucknall 1917. British Euphrasia. (Includes a full species key)
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Bucknall 1917 (2.95 MB / PDF)
Callen 1952. Studies in the Genus Euphrasia III. Euphrasia arctica. Rhodora.
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Callen 1952 (2.44 MB / PDF)
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