317 
equal in length: anthers glabrous or nearly so. (Phelipwa Ludoviciana Walp.)— 
Throughout Texas. 
3. A. multiflorum Gray. Somewhat more pubescent: calyx almost 5-parted, fully 
half the length of the ample (2.5 cm. or more long) purplish corolla: anthers very 
woolly.—Gravelly plains and pine woods of western Texas. 
LENTIBULARIEZ, (BLADDERWORT FAMILY.) 
Small herbs (growing in water or wet places), with a 2-lipped calyx, 
a 2-lipped personate corolla, spurred at base in front, 2 stamens with 
confluently 1-celled anthers, and a 1-celled ovary with free central pla- 
centa. 
1. UTRICULARIA L. (BLADDERWORT. ) 
Aquatic or immersed plants, with capillary dissected leaves bearing 
little bladders which float the plant at time of flowering (or rooting in 
the mud, and sometimes with few or no leaves or bladders), 1 to few- 
flowered scapes, lips of the 2-parted calyx entire or nearly so, personate 
corolla with palate on lower lip projecting (often closing the throat), 
and convergent anthers. 
* Upper leaves in a whorl on the otherwise naked scape, floating by means of large blad- 
ders formed of the inflated petioles ; lower leaves dissected and capillary, bearing 
small bladders: rootlets few or none. 
1. U. inflata Walt. Swimming free: bladder-like petioles oblong, pointed at the 
ends and branched near the apex, bearing fine thread-like divisions: flowers 3to 10, 
large, yellow: the appressed spur half the length of the corolla: style distinct.— 
Floating in still water, along or near the coast. 
* * Scapes naked (except some small scaly bracts), from immersed branching stems, which 
commonly swim free, bearing capillary dissected leaves with small bladders on their 
lobes: roots few and not affixed, or none: corolla yellow. 
2. U. vulgaris L. Immersed stems (3 to 9 dm. long) crowded with 2 or 3-pinnately 
many-parted capillary leaves, bearing many bladders: scapes 5 to 12-flowered, 15 to 
30 cm. long: pedicels recurved in fruit: corolla closed, 12 to 18 mm. broad, the sides 
reflexed: spur conical, rather shorter than the lower lip, rather thick and blunt or 
acute.—Common in slow streams. 
3. U. biflora Lam. Scape (5 to 12.5 em. high) 1 to 3-flowered, at the base bear- 
ing somewhat elongated submerged branches with capillary root-like leaves and 
numerous bladders: pedicels erect in fruit, few and slender: corolla 8 to 12 mm. 
broad, the spur oblong, equaling the lower lip.—Ponds and shallow waters, at 
least as far west as Gillespie County (Jermy). 
** * Scape solitary, slender and naked (or with a few small scales), the base rooting in 
the mud or soil: leaves small, awl-shaped or grass-like, often raised out of the 
water, commonly few or fugacious, rarely seen: air-bladders few on the leaves or 
rootlets, or commonly none: flowers 2 to 10, chiefly yellow.. 
4. U. subulata L. Stem capillary, 7.5 to 12.5 em. high: pedicels capillary: lower 
lip of corolla flat or with its margin recurved, equally 3-lobed, much larger than 
the ovate upper one; spur oblong, acute, straight, appressed to the lower lip, which 
it nearly equals in length.—Wet places, in pine barrens, near the coast. 
5. U. cornuta Michx. Stem strict (7.5 to 30 em, high), 1 to 5-flowered: pedicels 
not longer than calyx: corolla 2.5 cm. long, the lower lip large and helinet-shaped, 
its center very convex and projecting, while the sides are strongly reflexed; upper 
