Euphrasia campbelliae, Pugsley

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 264-265

32. E. campbelliae Pugsley , Jour. Bot. (London) 78: 91 (1940).

Stem up to 10 cm, erect, with 0-2 pairs of short erect branches. Cauline internodes l-2J(-4) times as long as the leaves. Lowest flower at node 2-7. Leaves not more than 8 mm, sometimes purplish beneath and green above, the hairs mostly on the distal half, sparse to rather dense, the cauline obovate to elliptical, with not more than 3 pairs of teeth, the lower floral ovate, rounded or cuneate at base, shortly petiolate, with 2—5(—6) pairs of obtuse to acute teeth. Corolla 5-5-7 mm. Capsule 4-5-7-5 mm, shorter than calyx, more than twice as long as wide, more or less emarginate. Heathy grassland near the sea. • N. W. Scotland (Isle of Lewis);?Zetland. Br.

Possibly of hybrid origin, between 29 and 33 or 34.