JEWEL- WEED FAMILY 187 



their structure will show how cross-pollination 

 is brought about by either of these visitors. It 

 is easy also to see how perfectly the nectar is pro- 

 tected from unbidden guests by the pendant posi- 

 tion of the blossom as well as by the tubular 

 nectary in which it is secreted. 



There are two species of these Jewel-weeds 

 the Fulvous or Spotted Jewel-\veed and the Pale 

 Jewel-weed. The latter has the larger flowers and 

 is the more northern form. 



OBSERVATIONS FOR NOTEBOOK 



JEWEL- WEEDS : 



(A) i. Where have you seen Jewel- weeds growing? 



2. Are they the Pale Jewel-weed or the Fulvous 



Jewel-weed? 



3. Have you even seen both kinds growing to- 



gether ? 



4. Have you noticed the little plants when they 



come up in the spring? 



5. What insects have you seen visiting the blos- 



soms? 



6. Have you ever seen bumble-bees biting holes 



in the flowers to steal the nectar? 



7. Do' humming-birds visit the flowers? 



8. How far are the seeds thrown when you touch 



the pod? 



9. Do you think the seeds are scattered by wind 



or by water in addition to being thrown 

 from the pods? 



