*. sule subglobose, about 1” in diameter. 
GENUs I, BLADDERWORT FAMILY. 225 
Family 29. LENTIBULARIACEAE Lindl. Veg. Kingd. 686. 1847.* 
BLADDERWORT FAMILY. 
Aquatic plants, or if terrestrial usually on moist ground, the leaves in a basal 
rosette, or borne along floating stems, or more or less root-like, or wanting. In- 
florescence scapose. Flowers solitary or racemose, perfect, irregular. Calyx 
inferior, 2-5-lobed or parted, persistent. Corolla hypogynous, gamopetalous, 
2-lipped, the upper lip entire or 2-lobed, the lower lip entire or 3-lobed, usually 
with a nectariferous spur. Stamens 2, borne upon the base of the corolla; anther- 
sacs confluent into 1. Ovary superior, usually subglobose, 1-celled; placenta sub- 
globose, central, free; ovules 2 or more, usually very numerous; style short or 
obsolete; stigma 2-lipped, the anterior lip larger, lamelliform. Fruit a capsule, 
bursting irregularly, or dehiscent by valves. Seeds variously appendaged or sculp- 
tured; embryo in the axis, often imperfectly developed; endosperm none. 
About 16 genera and 300 species, of world-wide distribution. 
Scapes without bracts or scales, 1-flowered; leaves in a basal rosette. 1. Pinguicula. 
Scapes with one or more bracts, with or without scales; leaves usually alternate, often dissected 
or root-like and bladder-bearing. 
Bracts at the base of the pedicels without bractlets; calyx not enclosing the fruit. 
Branches verticillate, and verticillately or oppositely decompound; lateral lobes of lower lip 
of corolla saccate. 2. Vesiculina. 
Branches alternate or none; lateral lobes of lower lip of corolla not saccate. 
Bracts, and scales if present, flat, basally attached; aquatic. 3. Utricularia. 
Bract solitary, tubular, surrounding the scape; scales none. 4. Lecticula. 
Bracts and scales peltate; terrestrial. : 5. Setiscapella. 
Bracts at the base of the pedicels accompanied by a pair of bractlets; calyx enclosing the fruit ; 
terrestrial. 6. Stomoisia. 
1. PINGUICULA [Tourn.] L. Sp. Pl. 17. 1753. 
Acaulescent herbs, with fibrous roots, naked 1-flowered circinate scapes, and leaves in 
a basal rosette, the upper surface commonly glandular and covered with a viscid secretion. 
Calyx 5-lobed, more or less 2-lipped, the upper lip 3-lobed, the lower 2-lobed. Corolla 5-lobed, 
more or less 2-lipped, the upper lip 2-lobed, the lower 3-lobed; base of the corolla saccate 
and contracted into a nectariferous spur. Capsule 2-valved. Seeds oblong, reticulate. [Latin, 
pinguis, fat, from the apparent greasiness of the leaves of several species. | 
About 35 species, of wide distribution in the northern hemisphere, and southward along the 
Andes to Patagonia. Besides the following, 4 others are found in the southeastern United States. 
Type species: Pinguicula vulgaris L. 
Scapes villous, 1’-2’ high; corolla pale violet, less than 6” long. . 1. P. villosa, 
Scapes glabrous or nearly so, 2’-6’ high; corolla violet-purple, more than 7” long. 2. P. vulgaris. 
1. Pinguicula villssa L. Hairy Butterwort. 
Fig. 3858. 
Pinguicula villosa L. Sp. Pl. 17. 1753. 
Pinguicula acutifolia Michx. Fl. Bor. Am. 1: 11. 1803. 
Scapes slender, densely villous, 1-2’ high, becoming 13’-5’ 
high in fruit. Leaves 3-6, the blades oval, obtuse or emargi- 
nate, 3-6” long, the margins usually inrolled; calyx minute, 
#8” long, the lobes acute, the 2 lower ones smaller and 
partly united; corolla pale violet with a yellowish striped a : 
throat, 4’-6” long including the slender obtuse spur, 2-lipped, 
the upper lip erect, 2-lobed, the lower spreading, 3-lobed; cap- 
oe 
In bogs, circumpolar; southward in America to Labrador, Hud- 
son Bay, Yukon, and Alaska. June-July. 
* Text contributed by Dr. Jonn HenpLey BARNHART. 
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