GAMOPETAL^ 169 



There are tufts of hairs between the distant teeth 

 on the segments. 



The scapes bear two to eight yellow flowers. The 

 ultimate flower-stalks are two to three times longer 

 than the calyx and are bent down after they flower, 

 the bracts being broad and thin. The calyx-lobes 

 are thin and broad. The corolla is spurred, the spur 

 short, conical, curved, the palate two-lobed, convex, 

 broad, not so long as the upper lip, which is broad 

 and short. The lower lip is longer, the margins 

 turned down at right angles. The lateral lobes turn 

 downwards. The anthers cohere. The stigma is 

 irritable. 



The height of the scape is 6-18 in. Bladderwort 

 flowers in June and July and is a herbaceous perennial. 



The flowers are like those of the Snap-dragon. 

 The two lips close the flower. The upper lip is 

 simple, the lower consists of three parts, the spur 

 containing honey, the arched part which touches 

 the upper lip, and the lateral lobes. On the lower 

 lip the insect visitors (flies) alight and press the lip 

 down, gaining access to the spur. The pistil and 

 stamens He under the upper lip. The stigma projects 

 and an insect touches it first. The anthers open 

 downwards and are touched also by an insect. The 

 receptive portion of the stigma is above, touching the 

 upper lip. It turns down on the opening of the 

 flower and in this stage a fly may touch it. Being 

 irritable it rises after being touched, and when the fly 

 withdraws itself the pollen of the same flower is not 



