298 THE STORY OF PLANT LIFE 



empty cells contiguous. It is as broad as long, 

 flattened at the sides with a slight furrow ; the seed 

 is seen in section in the centre, with a corky mass 

 one side, the empty cells the other, separated by a 

 groove. 



The plant is in flower between April and June and 

 is a herbaceous annual. Sometimes it is a foot in 

 height. 



The honey is concealed and lies in the tube, 

 there being no spur. The flowers are dichogamous, 

 anthers and stigma not ripening simultaneously, and 

 they are adapted to cross-pollination by insects. 

 Muller found it was visited by four beetles, eighteen 

 flies, one Hemipterous insect, eleven bees, two 

 Lepidoptera. 



Owing to the spurious character of the two cells 

 of the fruit and the corky mass on the other side of 

 the single seed in the fruit, the latter is adapted to 

 wind-dispersal, these contrivances reducing its 

 specific gravity. 



Cornel-sallet, Corn-salad, Lamb's Lettuce, Milk 

 Grass, Potherb, are all the names by which it is 

 known. 



Valerianella olitoria. — In Fig. 65 the opposite, 

 broad-based leaves, with the dichotomons flower-stalk and 

 terminal cymes [witJi small fruits), are illustrated. 



