272 
MONOPETALOUS ORDEKS- 
ternate with its segments ; filaments long ; anthers versatile. 
Ovary tree, 2-4-celle(i ; style simple, capillary ; stigma hispid. 
Pyxide 4-celled, many-seeded. Seeds sessile, peltate, or erect, 
solitary, twin, or indefinite ; embryo in the axis of fleshy albu- 
men. 
a. Properties : useful as a pot-herb ; emollient. 
Genus. — Plantago. 
481. Plumb AGIN ACE^, the Leadwort Tribe. — Herbs or under- 
shrubs. Leaves alternate or clustered, somewhat sheathing at 
the base. Calyx tubular, plaited, persistent. Corolla regular ; 
limb 5-parted. Stamens 5, opposite the petals, hypogynous in 
the gamopetalous species, in the polypetalous arising from 
the petals. Ovary 1-celled ; ovule pendulous from a funiculus 
which arises from the bottom of the cell. Fruit a utricle ; em- 
bryo large, in the axis of mealy albumen. 
a. Properties: astringent. 
Genus. — Statice. 
482. Lentibulariace^, the Butterwort Tribe. — Herbs^ growing 
in water or marshes. Lea/oes radical, sometimes compound, re- 
sembling roots, and bearing little air-bladders which render them 
buoyant. Flowers showy, very irregular. Calyx divided, per- 
sistent, inferior. Corolla bilabiate, irregular, usually spurred. 
Stamens 2, inserted into the base of the corolla, and included. 
Ovary free, 1-celled ; placenta free, central ; ovules numerous. 
Fruit a capsule. Seeds minute, albuminous ; embryo straight. 
Geneea. — Pinguic ula, Urtricularia. 
483. Orobanchace^, the Broom-Rajpe Trihe. — Herbaceous^ 
leafless plants, parasitic on the roots of other plants. Stems 
covered with brown or colorless scales. Calyx inferior, persist- 
ent, 4 or 5 toothed, or bilabiate. Corolla withering or persist- 
ent, irregular, usually bilabiate. Stamens 4, didynamous, in- 
serted in the corolla. Ovary free, 1-celled, with two parietal 
placentae. Fruit a capsule inclosed in the persistent corolla. 
Seeds numerous, minute; embryo yqvj minute, at one end ot 
fleshy albumen. 
a. Properties : astringent, bitter, escharotic. 
Genera. — Epiphegus, Orobanche, Obolaria. 
484. Gesneriace^, the Gesnera Tribe. — Herbs or shrubs^ 
frequently springing from scaly tubers. Leaves opposite or 
whorled, rugose. Flowers showy, in racemes or panicles, rarely 
solitary. Calyx 5-parted, partially adherent. Corolla tubular, 
5-lobed, more or less irregular. Stamens 2 or 4, didynamous; 
a/nthers often cohering. Ovary partly free, 1-celled. Dislc sur 
rounding the base of the ovary. Fruit 1-celled, succulent or 
