90 



yond the upper iip and is curved up and the anthers have 

 the same adaptation as in other species. The connective blocks 

 the passage way and as the insect thrusts its proboscis into 

 the flower the other anther comes over its back. 



Salvia Kclarea, S. aethiopica, and S. glutinosa have a simi- 

 lar arrangement for pollination. When the insect visits an 

 older salvia flower and is about to enter, some of the pol- 

 1 3n is left on the stigma. Figure 33 pg. 88 shows an excellent 

 likeness of Salvia glntinosa. In lopezias (Lojoe^/a coronata, etc.) 

 the pollen comes to the insect from the lower side. While 

 some of the salvias are adapted to bumble-bees for pollina- 

 tion, Prof. Trelease has shown that Salvia splendens and 

 others are pollinated by humming-birds. The color of 

 Salvia gesnerifolia is brilliant. Bees cannot get nectar in 

 the normal way. Lepidoptera, though having a tongue 

 suflBciently long to get the nectar cannot do so, owing to the 

 lower ends of the connective, which are dilated. The levers 

 are stiff enough to prevent butterflies from working it. 



Nepeta Oataria. In catnip the flowers are born in 

 glomerate cymes and are proterandrous. The short corollas 

 are whitish and spotted. The nectar is accessible to many 

 short-tongued insects. It is commonly visited by the honey 

 bee and some species of £o7nbus as well as some Diptera 

 and Lepidoptera. 



Monarda fistulosa. Horse Mint is a common plant, 

 growing in our woods and along railroads. It is quite con- 

 spicuous with numerous branches and flowers in glomerate 

 heads. The bilabiate corolla is pubescent; the upper lip is 

 narrow and extends obliquely upwards, containing the 

 stamens and pistil, the former being attached to the lower lip 

 of the corolla. Since the anthers and stigma are so far apart 

 the largest b«es are likely only to touch them when landing 



