478 ORDER XCIV. LENTIBULARIACE^. 



Stigma bilamellate. Capsule 1 -celled, many-seeded, with cen- 

 tral placentae. Seeds minute. Herbaceous plants, with radical 

 leaves ; growing in swamps and marshes. 



Genus L— PINGUIC'ULA. L. 2—1. 

 (From pinguis, fat, in allusion to the greasiness of its leaves.) 



Cahjx bilabiate, 5-cleft. Corolla ringent, spurred at the 

 base. Stamens 2, very short. 



1. P. ela'tior, (Mich.) Ste7n none. Leaves all radical, spatulate, 

 ovate, entire, viscid, obtuse : scape columnar, villous at the base, several 

 from each root. Flowers solitary. Calyx deeply 5-cleft, the 3 lower- 

 segments approximate ; tube of the corolla ventricose, villous within, 

 veined with purple, equally 5-cleft ; segments 2-lobed ; spur obtuse, 

 compressed, half as long as the tube. Anthers globose, approximate, 

 1-ceiled. Style short. Stigma somewhat 3-lobed. Capsule 1-celled, 

 terminated by the persistent style. — Yellow. 2|. March — April. 

 Common in w^et places. Tall Pinguicula. 



2. P. lu'tea, (Walt.) Stem none ; scapes 1 — 3 from each root, pu- 

 bescent, 1 flowered. Xmi'^s similar to the preceding. Ca/yar equnlly 

 5 cleft. Corolla campanulate, 5-cleft, with the segments 2-lobed ; tlie 

 inferior lamella of the stigma dilated, covering the anthers, the upper 

 one minute : the whole plant pubescent, with tlie hairs terminated by 

 a viscid gland. — Yellow. 2^. March — April. Pine-barrens. Very 

 common. Yellow Pinguicula. 



3. P. pu'mila, (Mich.) Scapes several from each root, pubescent, 

 hairs terminated by viscid globules. Leaves smoother than in the i>re- 

 ceding species. Calyx pubescent, with obtuse segments. Corolla vil- 

 lous within; tube streaked with purple, yellowish. Stigtna with the 

 upper lamella slightly 3-lobed, short, the lower one ciliate, covering the 

 anthers. Capsule globose, pubescent. — Pale blue. If. March — April. 

 Common in southern and middle Geo. 



Genus II.— UTRICULA'PJA. L. 2—1. 

 (From utriculus, a little bladder.) 



Calyx bilabiate, lips undivided, nearly equal. Corolla rin- 

 gent, the lower lip spurred at the base. Stamens 2, with the 

 filaments incurved, bearing the anthers within the apex. Stig- 

 ma bilamellate. Capsule 1-celled. 



1. IT. infla'ta, (Walt.) Stem submersed, branching, terete, glabrous. 

 Leaves alternate, the lower ones whorled, inflated, pinnatifid at the 

 extremities ; segments setaceous. Flowers in racemes, surrounded by 

 a 6-leaved involucre floating on the surface of the water. Calyx per- 

 sistent ; segments nearly equal, concave, ovate. Corolla with the up- 

 per lip entire, broad-ovate, smaller than the under lip; lower lip 3-cleft, 

 the lateral segments broad, and shorter than the middle segments. 

 Spur bifid ; the lower lamella of the stigma dilated, ciliate, reflexed. 

 — Yellow. If. Still waters. Very common. 



2. U. FiBRo'sA, (Walt.) Stem submersed, round. Flowers in simple 

 racemes ; peduncles 6 — 8 inches long, columnar ; pedicels 1 — 2 inches 



