SEED-BEARING PLANTS 
485 
FIG. 369. Toad-flax (Linaria vulgar is}. Abnormal flowers (pelories), 
having five or more spurs. Normal, one-spurred buds are shown in A. 
FIG. 370. Toad-flax (Linaria vulgaris). Flowers being visited by an 
insect for nectar. B, longitudinal section, showing the insect's proboscis 
extended down the spur toward the nectar-gland; C, insect with a mass of 
pollen (p), rubbed off from anthers onto the dorsal hairs of the thorax, 
during successive visits. 
