286 
Alliance III. LENTIBALES, 
Essential Character. — Flowers unsymmetrical, diandrous. FmU capsular, with a 
free central placenta. Marsh or water-plants. 
Order CCXIV. LENTIBULACE^. 
Lentibulari^, Richard in Flor. Paris, p. 26. (1808). — Utriculinas, Hoffmannsegg et 
Link. FI. Port. (1806). — LENTiBULARiiE, R. Brown Prodr. 429. (1810) ; Lindl. 
Synops. 1806. (1829) ; Link Handb. 1. 511. (1829) a sect, o/ Personatae. 
Essentiai, Character. — Calyx divided, persistent, inferior. Corolla raonopetalous, 
hypogynous, irregular, bilabiate, with a spur. Stamens 2, included within the corolla, and 
inserted into its base; anthers simple, sometimes contracted in the middle. Ovary 1- 
celled ; style 1, \exy short; stigma bilabiate. Capsule 1 -celled, many-seeded, with a large 
central placenta. Seeds minute, without albumen ; embryo sometimes undivided. — Herba- 
ceous plants, living in water or marshes. Leaves radical, undivided ; or compound, resem- 
bling roots, and bearing little vesicles. Scapes either with minute stipule-like scales, or 
naked ; sometimes with whorled vesicles ; generally undivided. Flowers single, or in spikes, 
or in many-llowered racemes ; with a single bract, rarely without bracts. R. Br. 
Affinities. The central free placentae and minute exalbuminous em- 
bryo are the principal points of distinction between these and Scrophula- 
riaceae, to which their habit nearly approximates them. They are known 
from Primulaceae by their irregular flowers, exalbuminous embryo, and sta- 
mens. 
Geography. Natives of marshes, or rivulets, or fountains, in all parts of 
the world, especially within the tropics. 
Properties. Pinguicula vulgaris has the property of giving consistence 
to milk, and of preventing its separating into either whey or cream. 
GENERA. 
Utricularia, L. 
Pinguicula, L. 
Alliance IV. SCROPHULALES. 
Essential Character. — Flowers unsymmetrical, diandrous or didynamous. Seeds 
wingless and tailless, with the embryo in the axis of albumen ; their stalks never hooked. 
Fruit capsular ; carpels standing parallel with the axis of inflorescence O. 
For remarks upon the relation that exists betw'een this and the neighbour- 
ing alliances and orders, see the remarks under Scrophulariaceae, Order 217. 
Order CCXV. GESNERACE.E. 
Gesnerie^. Rich, et Juss. Ann. Mus. 5. 428. (1804) ; Kunth in Hurnb. N. G. et Sp. 2. 392. 
(1817); Bindley in Bot. Reg. 1110. (1827). — Gesneriace^, LinA. 1. 504. 
(1829) a sect, of Personatae. — Gesnere.-e, Von Martius Nov. Gen. Bras. 3. 68. 
(1829) ; Bartl. Ord.Nat. 174. (1830). 
Essential Character. — Calyx half superior, 5-parted, with a valvate aestivation. 
Corolla monopetalous, tubular, more or less irregular, 5-lobed, with an imbricate aestivation. 
Stamens 2, or didynamous; anthers cohering, 2-celled, innate, with a thick tumid connec- 
tive; the rudiment of a fifth stamen is present. Ovary half superior, 1 -celled, with 2 
