CAPRIFOLIACE^ 



221 



perhaps connected with the tender delicate texture of 



the leaves, and especially of the young leaves, which 



afford a tempting food to many caterpillars and other 



insects. The ants and wasps which are attracted by 



the honey tend to keep them down, and thus to serve 



as a bodyguard. Indeed, 



it has appeared to me 



that on specimens of V. 



Opnlus which are much 



frequented by wasps and 



ants the leaves are less 



eaten than in other cases 



where they are not so 



protected. It is said to 



emit a peculiar odour in 



the evening.^ 



V. Lantana (Wayfar- 

 ing Tree) (Fig. 147). — In 

 addition to the differences 

 from V. Opnlus already 

 mentioned, the flowers of 

 V Lantana are all com- 

 plete, the peripheral flowers 



-Vibwrnum Lantana. Slioot, 



Fig, 147. 



with tlower and young and ripe fruit. 



are not much larger than the others, the quantity of 

 honey is less, and according to Schulz the flowers are 

 protogynous. 



LONICERA 



Honey is secreted at the surface of, or in a cup at, 

 the base of the corolla tube. 



L. Periclymenum (Honeysuckle). — The first flowers 

 expand, and become strongly scented about seven o'clock 

 in the evening, and by eight most of them are open. The 

 buds stand more or less perpendicularly. The tube is 

 rather more than an inch in length, so that the honey is 

 only accessible to Lepidoptera. Soon after opening the 

 flowers turn downwards and become horizontal. The 

 flowers are homogamous, but in the first state of the 



^ Rev. H. Friend, in Science Gossip, Sept. 1 896. 



