le LENTIBULARIACEAE 
; a i 300 species of wide geographic distribution in tropical and temperate regions. Type species, Utricularia 
vulgaris L. 
Pedicels fae in fruit. 
Lea 
crowded, 3-4 cm. long; corolla-spur curved but little shorter than the lower lip U. vulgaris. 
«pele scattered, mostly 1-2 cm. long; corolla-spur very short or sometimes almost radimentay. 
a erect in os salable 
d; corolla-spur much shorter than lower lip. 3. U. gibba. 
Leaves 2-4- parted; coral: spur about equaling lower lip. 
rollas m. broad; ultimate leaf-divisions flat. 4. U. intermedia. 
sae ae mm. See ultimate leaf-divisions terete. 5. U. fibrosa 
1. Utricularia hier 90 L. Greater or Common Bladderwort. Fig. 4963. 
Utricularia vulgarts L. 8. 
Utricularia vulgaris var. pili os Man. ed. 5. 318. 1867. 
Stems immersed, usually free- floating, rather stout and ene densely va hed ae 
1-2 cm. long, ofte n lobed in outline Nee divisions fringed with g irs; —4c¢ ong, 
2-3-pinnately divided into filiform segments, midrib n ot gacek useally very bladdery, the bladders 
bout 3-4 mm. lo scapes stout in co i (3 
a cm ong, 
flowered ; pedicels reflexed in fruit ; corolla yellow, 10-20 mm. broad, the sides of the lips reflexed 
and the uppe ap ese entire, barely longer than the palate, lower lip “se slightly 3-lobed; spur 
m. long, somewhat curved, Shunk or acutish, a than the lower lip; capsule globose. 
nie and aa streams, Boreal, Transition, and so mes Upper “elo Zones; British Columbia to 
— California and eastward across the Cee Cnenk: zy i Pe ice and Asia. Type locality : Europe. April- 
2. Utricularia minor L. Lesser Bladderwort. Fig. 4964. 
Utricularia minor L. Sp. Pl. 18. 1753. 
Stems floating or creeping on the bottom in shallow water, ed slender and thread- a 1-3 
dm. aise sparingly branched. Winter buds round, 1. 5-5 mm. long, leaf-divisions not fringed ; 
leaves about 1 cm. long, 2-4-parted, the divisions very slender but Tete, entire, of two ee 
the larger 25-30 mm. long and usually witho ut _ Acers, the mallae 1-3 cm. long and aring 
bladders; scapes almost filiform, 5-15 cm owered, and with 2-5 minute eae ale 
scales; pedicels Se wah 2-8 mm. long, eek in aaits calyx-lobes 1 mm. long; corolla 
yellow, frog. ci lip 2-4 mm. long and about half as wide; lower | ip 4-8 mm. long, palate pee! 
spur very short and saccate imap about 1 mm. in dia 
In ee allo inly 1 Zone; circumpo ee in dstraton, extending southward in North America 
Toke — Ae Taare Core, ecrenk, ‘also Utah, Colorado, Ohio, and Pennsylvania. Type locality: Europe. 
¥ 
mn 
Utri Sie aria occidentalis A. Gray, Proc. Am Acad. 7 95.. 1883. An “cab kigptoe d known species which 
differs fie U. minor by the hairy- [omied eat. pia of ‘oe kB buds. Kno only from Falcon Valley, 
Klickitat County, Washington, the type locality. 
3. Utricularia gibba L. Swollen-spurred Bladderwort. Fig. 4965. 
Utricularia gibba L. Sp. Pl. 18. 1753 
Utricularia fornicata Le Conte, Ann. isc WY. 1: 76... 1824. 
Stems slender, short, creeping over moss 0 mud in shallow water, ee ene. les 1 mm. or 
less in poacon the leaf- divisions thread- like, pe fringed on the margin once-parted, 
appearing r oot-like, a henegre few, h air-like, without midribs; bladders sat” cane on leaf- 
divisions ; scapes s 2:5-10 ¢ igh, with short slender branches ‘at se, 1-2-flowered, the ee 
erect in fruit; oo pia. pete m. broad, lips rounded, the lower reflexed and somewhat longe 
than the thic k, blun t, Bibbous anil gveiee globose 
n shallow water. Ges n Zon n the Pacific States occurring in California, in the San Joaquin Valley 
in Sen Tonquin Coun. —. the oe gf pothole Bay area in Lake, Sonoma, and Contra Costa — and = 
in the northern Sierra Nevada; e wide distribution in the eastern states and also Mexico and Central Amer 
Type locality: Virginia. July: —Sep 
4. Utricularia intermédia Hayne. Flat-leaved or Mountain Bladderwort. 
Fig. 4966. 
Utricularia int dia Hayne in Schrad. Journ. fiir de Bot. 1: 18. 1800. 
Stems 1-2 dm. long, creeping on the bottom in shallow er and radiating Se the base of 
the scape. Winter buds oval, 3-10 mm. long; the leaf- divisions frin << * ith gray hairs; leaves 
numerous and crowded, -ranked, sii not flaccid, 4—5-forked, the segments A near, flat, bristly- 
serrulate, with evident midrib ; bladders 2-5 mm. lon rne on couaiae a branches or some- 
i fl ee = - — bra Ww ; 
n fru 5 ’ 
long and about 1 mm. oe the | shan ie ‘slightly 3-lobed, 10-12 mm. broad, palate prominent ; 
a conic at base, cylindric above, acute, a little shorter than the lower lip; capsule 3 mm. in 
eter. 
w water in mountain Fy and ponds, Boreal and Transition Zones; cooler portions of the northern 
hem Gobcte <a orth America, ranging from Br ge Columbia east to Newfoundland and south to California, 
fodiank sil New Jersey; also’ Psi Europe and Asia. In the + egg States it is infrequent but ranges as far south 
as Plumas County, California. Type locality: Europe. June 
