Fig. 453: Myosurus. a-h, M. aristatus subsp. montanus: a, mature achene with 

 divergent beak and strongly nerved lateral angles, x 8; b and c, habit variations, scapes 

 extending above the leaves, x %; d, mature seed, x 12; e, young fruiting spike, x 4; 

 f, part of a mature fruiting spike, x 4; g, flower, stamens few, x 12; h, petal, the 

 nectariferous pit rounded, x 16. i-m, M. aristatus: i, flower, the calyx spurs long and 

 slender, x 8; j, mature seed, x 16; k, mature achene, the beak long and divergent, x 

 12; 1 and m, habit variations, the fruiting spikes bristly, x %. (From Mason, Fig. 234). 



