Fig. 511: Callitriche verna: a, fruit (cross section), x 12; b, mature fruit, x 12; 

 c, habit, lower submersed part of plant, showing the short leaves and the sessile fruits, 

 X P.-,; d, mature carpel, showing the longitudinal wing, x 20; e, reticulation of carpel 

 surface, x 40; f, habit, showing upper part of stem terminating in a rosette of spatulate 

 floating leaves, the submersed leaves linear, x W'y, g, apex of young leaf, slightly 

 notched, x 10; h, flowers, showing the winglike bracteoles, x 8. (From Mason, Fig. 

 255). 



