54 ELEMENTARY BOTANY 
appendages fit (Fig. 65). In the Marsh Marigold, the nectaries 
occupy little depressions, one on each side of the base of the 
carpel (Fig. 102). In the Columbine, 
Christmas rose, Hellebore, the petals 
have become transformed. into 
tubular nectaries (Fig. 101). In the 
Coltsfoot, the nectary is at the base 
of the style, and may be seen by 
holding up one of the inner florets 
to the light, when it appears yellow 
through the corolla-tube. In the 
Fig. 65.—Fiower or Vioter, Primrose, the nectary is at the base 
Sone Se ee? ot she ovary, whilst in the Iris, 
TARIES. (The dotted lines Mignonette (Fig. 66), and the 
indicate the position of the Umbellifere (Fig. 44, d) it takes 
spur and sepals.) 
c, connective; st, style; oe . : vu 
sg, stigma; 7, nectaries. The position of the nectary 1s 
invariably such that the insect, in 
the act of getting the honey, must knock against the anther 
and thus obtain pollen. . 
Only certain insects can get-the honey from special flowers ; 
when the honey collects at the bottom of | 
a long tube, as in the Clover and in many 
Compound flowers, only insects with long 
antenne can reach it. Some years ago 
clover was planted in Australia, but it 
never made seed, for there was no insect 
that could pollinate it; then the humble- 
bee was introduced, and now Australian 
‘clover can make seed, for the bee can 
reach the honey, and in getting it polli- 


Fic. 66.—FLOWER OF 
nates the flower. | MIGNONETTE. 
When nectaries are in exposed places, d, dise forming 
as in the Umbellifere, their honey may Rens 
be washed away in rainy weather, and many plants have 
contrivances for preventing this. Some plants in bright, 
sunny weather hold their corollas up, spreading them out 
