198 
UTRICULARIA alpina. 
Large-flowered alpine Bladder-root. 
DIANDRIA MONOGYNIA Nat. Ord. LENTIBULARIM. 
Gen. Char. — Cal. diphyllus, labiis aequalibus indivisis. Corolla personata, 
labio inferiore basi calcarata. Stamina 2, filamentis apice intus antheri- 
feris. Stigma bilabiatum. 
Utricularia a/piwa,- corollas labiis amplissimis planiusculis, inferiore ma- 
jore cornu subulato paulum longiore, scapo uni- bifloro, foliis ellip- 
tico-lanceolatis petiolatis solitariis vel binis. 
Utricularia alpina, Linn. Sp. PL p. 25. — Willd. Sp. PI. v. i. p. 111. 
Utricularia montana, Jacq. Amer. p. 7. t. 6. — Poiret, in Encycl Bot. v. viii. 
p. 268. 
Utricularia unifolia, Fl. Perm. v. i. p. 20. t. 34. f. b. 
Utricularia grandiflora, Pers. Si/n. PI. v. i. p. 18. 
Root consisting of rather thick horizontal fibres, here and there swollen 
into ovate fleshy tubers, which Jacquin not unaptly compares to those 
of the potato, and beset with smaller radicles, abounding in minute pel- 
lucid vesicles. Leaves very bright green, single, or two together, erect, 
from 1-3 inches long, elliptical-lanceolate, coriaceous, obscurely veined, 
tapering gradually at the base into a footstalk about equal to itself in 
length. 
Scape 6-10 inches long, erect, rounded, with a few distant bracteae, bearing 
at the extremity 1 or 2 very large and handsome flowers. Pedicel about 
an inch long, with a bractea at its base, Cali/x of 2 equal, ovato-cordate, 
plane lips or leaflets, cream-coloured, tinged with rose. Corolla divided 
almost to the base into 2 large, but unequal, nearly plane, yellowish- 
white, delicately membranaceous lips, waved at the margin, obscurely 
and obliquely striated, the lower one much the longest, having a remark- 
ably inflated, deep yellow palate, which is hollow within, and is pro- 
duced at the base into a large subulate horn, of about its own length. 
Organs offructijication very small, compared with the size of the flower. 
Stamens 2, united at the base, and springing from that side of the pistil 
which is next the lower lip. Filaments curved, so as almost to meet at 
the top, just beneath the stigma, clavate, white. Anther 1 -celled, ob- 
liquely placed at the top of the filament. Gerrnen globose, and, as Avell 
VOL. III. 
