550 



THE PINGUICULA FAMILY. 



Fig. 658. 



slender, with a pale-yellow flower, tinged 

 with lilac, still smaller than in the alpine 

 B. ; the spur always much curved, ra- 

 ther larger in proportion than in the 

 alpine B. t but much shorter than in the 

 common B.; the lips of the corolla nearly 

 equal in length, and thelobesof the lower 

 one almost equal in breadth. Capsule 

 globular. 



A west European plant, common in 

 the bogs of Portugal and western Spain, 

 and France, and extending to Ireland, 

 the south and south-west of England, 

 and west of Scotland. Fl. all summer. 



II. BLADDERWORT. UTRICU LABIA. 



Some exotic species are marsh plants, either leafless or with entire 

 radical leaves and 1-flowered peduncles ; the European ones are all 

 floating plants, without real roots at the time of flowering, but with 

 long, root-like, capillary branches or rootstocks, all submerged ; their 

 leaves divided into short capillary segments, interspersed with little 

 bladders or vesicles, full of air. Flowers in a terminal raceme, on a 

 leafless flower-stem arising out of the water from a tuft of the floating 

 branches. Calyx deeply 2-lobed. Corolla spurred as in Butterwort, 

 but the mouth is closed or nearly so by the convex palate, the lobes 

 of the lips being turned back. Capsule globular, opening in 2 valves. 



A considerable genus, dispersed over nearly the whole world. 



Bladders interspersed with the leaves. 



Flowers of a rich yellow, about 6 to 8 lines long. Spur 



conical 1. Common B. 



Flowers of a pale yellow, not 4 lines long. Spur very 



short 2. Lesser B. 



Bladders on separate branches from the leaves .... 3. Intermediate B. 



1. Common Bladderwort. Utricularia vulgaris, Linn. 



(Fig. 659.) 



(Eng. Bot. t. 253.) 



The root-like floating branches often extend to a length of from 6 

 inches to a foot or more, bearing numerous capillary, much divided 



