Callitriche pulchra, Schotsman

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 : 124-125

3. C. pulchra Schotsman , op. cit. 40 (1967).

Leaves almost linear, slightly wider at base, emarginate. Styles with basal part recurved, upper part erect. Fruit 1-5-1-8 x 2-2-2 mm, stalked, often with only 2 mericarps; mericarps broadly reniform, with large seed and wide wing, the cells of the wall enclosing the seed with stellate thickenings. 2« = 8. Pools on calcareous soils. Gavdhos. Cr. (Libya.)

(6) Two fruiting forms: completely submerged, with linear, transparent leaves; or upper part of stem aerial, forming a rosette with spathulate leaves raised above the surface of the water, the basal part of the spathulate leaves transparent. Cauline hairs absent. Flowers solitary, submerged or aerial. Bracteoles absent. Stamens of submerged flowers (in the European species) erect before and after dehiscence, those ofaerial flowers recurved and elongating after dehiscence; anther-wall with thickened cells; pollen-grains pale yellowish, with thin exine. Wing of mericarp (in the European species) composed of several rows of large, transparent polygonal cells. Basic chromosome number 4.