Fig. 67: Sagittaria Greggii: a, scape (cross section), X IVo; b. whorls of maturing 

 fruits, showing the reflexed sepals and long bracts subtending the pedicels, X %; c, 

 habit, showing narrowly sagittate leaf blades, X Vr,; d, leaf base sheath, X %; e, stamen, 

 showing glabrous filament with dilated base, X 8; f, tip of inflorescence, showing whorls 

 of staminate flowers and pistillate flowers below beginning to mature, X %; g and h, 

 leaf blade variations, X %; i. mature achene, showing the tubercled irregularly thickened 

 lateral ribs, X 8. (From Mason, Fig. 49). 



