360 THE PINGTJICULA FAMILY. 



3. Pale Butter^vort. Pinguicula lusitauica, Linn. 

 (Eng. Bot. t. 145.) 



Leaves of the common B., but usually smaller. Peduncles very slender, 

 with a pale yellow flower, tinged with lilac, still smaller than in the al- 

 pine B. ; the spur always much curved, rather larger in proportion than 

 in the alpine B., but much shorter than in the common B. ; the lips of the 

 corolla nearly equal in length, and the lobes of 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. BIiADDER'WORT. UTRICULAEIA. 



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, capil- 

 lary branches or rootstocks, all submerged ; their leaves divided into short 

 capUlary 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. Co- 

 rolla spurred as in Butterwort, but the mouth is closed or nearly so by the 

 convex palate, the lobes of the hps being turned back. Capsule globular, 

 opening in 2 valves. 



A considerable genus, dispersed over nearly the whole world. 



Flowers of a rich yellow, about 6 to 8 lines long. Spur conical . . . .1. Common^. 

 Flowers of a pale yellow, not 4 lines long. Spur very short 2. Leaser B. 



1. Common Bladder'wort. Utricularia vulgaris, Linn. 

 (Eng. Bot. t. 253.) 



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

 a foot or more, bearing numerous capillary, much divided leaves, from ^ to 

 1 inch long, and more or less interspersed with little green vesicles. Flower- 

 stems 6 to 8 inches high, bearing a few rather large yellow flowers. Bracts 

 at the base of the pedicels, and lobes of the calyx, broad and thin. Corolla 

 with a short, conical, more or less curved spur, and a broad, convex palate ; 

 the upper lip very short, scarcely projecting beyond the palate ; the lower 

 lip much longer, thrown back from the palate ; the lateral lobes turned 

 downwards. 



In deep pools, and water-channels, in Europe, Asia, and America, from 

 the Arctic Circle to the tropics. Widely distributed over Britain, although 

 not a common plant. Fl. summer. 



2. Ijesser Bladder'wort. Utricularia minor, Linn. 



(Eng. Bot. t. 254.) 

 Diflers chiefly from the common B. in the small size of all its parts. The 

 floating branches are very slender, those of the flowermg plant usually 2 or 

 3 inches long, but when barren often longer, and intricately branched ; 

 the leaves small, very fine, with few forked lobes, and seldom more than 

 1 or 2 bladders to each, or often without any. Flowers scarcely more than 

 half the size of tliose of the common B., of a pale yellow, with the lower lip 

 much flatter ; the spur usually reduced to a short, broad protuberance. 



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