UrRICULARIA. LXXXVI. LENTIBULACE. 391 
than the corolla—Wet rocks and thin, damp soils, N. Y. (near Rochester, 
Dewey, Beck.) N. to Arctic Am. Hooker. Scape 6—8' high, with solitary, nod- 
ding flowers. Leaves all springing from the root, fleshy, spatulate or ovate, 
with a tapering base, fleshy and unctious to the touch. Corolla with a purple 
tube, lined with soft hairs. Flowering early in April and May. 
2, UTRICULARIA. 
Lat. wtricula, a little bottle ; alluding to the air-vessels appended to the roots. 
Calyx 2-parted, subequal ; corolla irregularly bilabiate, personate, 
spurred; sta. 2; stig. bilabiate; caps. globular, 1-celled— Herbs 
aquatic, loosely floating or fixed in the mud. Lvs. radical, multifid or 
linear and entire, mostly furnished with little inflated vesicles. Scape erect. 
§ Floating. Leaves capillaceous, multifid. Roots few or 0. Branches 
producing turions at apex. 
1. U. mruata. Walt. cu ceratophylla. Mz.) Whorled Bladderwort. 
Upper lvs. in a whorl of 5 or 6 at the surface of the water ; petiole and mid- 
vein inflated, lower lvs. capillaceous, dissected, submerged ; scape 4—5-flowered. 
—1 In ponds, Mass. to Car., W. to Ohio. The proper stem (rhizoma 2) is 
very long, branching, suspended in the water by a single, irregular whorl of 5 
or 6 floating, inflated leaves which are oblong, cleft, and pinnatifid at the end. 
Flowers 4—5 together upon a scape 8’ in length, pedunculated, with sheathing 
bracts. Spur nearly as long as the corolla, appressed to the lower lip, striate, 
emarginate. Cor. yellow, the upper lip broad-ovate, entire, lower 3 lobed. Aug. 
2. U. vutedris. (U. macrorhiza. Le Conte.) Common Bladderwort. 
Lvs. all submersed, capillaceous, multifid, fibrillose or setaceous; vesicles 
numerous, small; sf. or rhizoma very long, floating ; scape simple, 5—11-flower- 
ed! spur conical, obtuse, shorter than the corolla.—2 In stagnant pools, U. S. 
and Can. Floating stems several feet long, very branching. Leaves very nu- 
merous, 1’ in length. Utrieles furnished with a fringed, valvate aperture, 
usually inflated. Scape 5—10’ high, stout, arising out of the water. Flowers 
alternate, showy, yellow, 5—6” long, lower lip larger, with a projecting palate, 
striped with brown. Jn. Jl. 
3. U. INTERMEDIs. Hayne. 
Lvs. all submersed, in 2 rows, dichotomously many-parted, without vesi- 
cles, roundish in outline, segments ciliolate-denticulate; leafless. branches with 
lateral vesicles and terminal turions; fis. few ; lips entire; spur conical, acute, 
appressed to the lower lip.—2| Pools, Mass. Robbins! R.I. Prov. Frank. Soc. 
Floating stems branched, a foot long. Leaves about 3” long,numerous. Turions 
much larger than the vesicles, green, scaly, producing new plants like bulbs 
Flowers 4—5” long, sulphur-yellow. 
4. U. striata. Le Conte. 
Lvs. numerously subdivided, submerged, with vesicles; scape 2—6-flower- 
ed, with a few scales; flowers large, yellow, upper lip broad, divided into 3 
lobes, the middle lobe striate with red, lower lip crenate, sides reflexed, having 
dark spots upon the palate; spur slender, obtuse, with a notch at the end, 
pressed against the lower lip of the corolla and nearly as long.—q@ Native of 
swamps, Mass. to Flor. Root submerged, slightly attached tothe mud. Leaves 
(radicles ?) few, capillary, appendaged with few air vessels. Scape a foot high, 
generally with 2 flowers. June. 
5. U. essa. Linn. (and Le Conte.) 
Minute, floating, leafless? with few utricles and turions; scape about 2° 
(4—7, Le C.)-flowered, naked, segments of the yellow corolla roundish, upper 
lip emarginate, lower subtrilobate, middle lobe crenate, subrevolute; spwr gib- 
bous in the middle.—2 In pools, R. I., Olney, Mass., N. Y. toCar. Submersed 
stems dichotomous. Scapes 2—3’ high, generally with but 2 small, yellow 
owers. Spur swelling outward in the middle. Jl. 
6. U. rornicata. Le Conte. (U. minor. Ph.) 
Sts. numerous, fibrillose-branched, floating, utriculate ; scape naked, 1—2- 
flowered ; upper lip of the corolla 3-lobed, central. lobe incurved over the palate, 
