Callitriche keniensis Schotsman

Robust aquatic herb, with stems up to 40 cm long.. Larger leaves spathulate to elliptic, up to 15 mm long and 4 mm wide, 5–8-veined; petiole 1(–3)-veined.. Flowers either solitary or one male and one female in the same axil; bracts 2, about 1.5 mm long; stamens 3–4 mm long, after dehiscence up to 5 mm long; anthers 0.8 mm long.. Fruit ± orbicular, ± 1.5 mm, unwinged.. Pollen reticulum meshes not as wide as the clavae; clavae irregularly triangular with sharp angles.. Fig. 1/7–8 (p. 3).