374 OROBANCHACE/E 



8. 0. HedercB (Ivy Broom-rape). — A purplish species, about a 

 foot high, with loose spike; i-veined sepals; nearly glabrous 

 stamens, and yellow stigma. — On Ivy ; uncommon. — Fl. June, 

 July. Perennial. 



9. 0. minor (Lesser Broom-rape). — A slender, yellow-brown or 

 purplish species, about a foot high, with a loose spike ; many- 

 veined, ovate, acuminate sepals ; white or yellowish corolla-limb ; 

 stamens hairy below, smooth above ; style nearly smooth , stigma 

 purple. — Chiefly upon Clovers, but occasionally upon various 

 other plants ; frequent. — Fl. June, July. Annual. 



10. 0. amethystea (Purple Broom-rape), with its corolla much 

 curved at the base, and the middle lobe of the lower lip much 

 the longer, occurs rarely on Daucus gummifer. — Fl. June. 

 Annual. 



2. LathR/EA (Toothwort). — A pale, pink-tinged, fleshy plant, 

 partly parasitic, partly saprophytic, with its flowers in 2 rows down 

 one side of the stem ; calyx bell-shaped, 4-cleft ; corolla gaping, 

 2-lipped, the upper lip arched, entire, deciduous, the tube 

 persistent. (Name from the Greek lathraios, hidden, from its 

 growth in shady places.) 



T. L. Squamdria (Toothwort). — The only species, a remarkable 

 pale plant, with a fleshy, branched rhizome thickly clothed with 

 tooth-like scales, which are hollowed out into glandular cavities ; 

 each branch bears a i -sided raceme of drooping, dull-reddish 

 flowers, with a broad bract at the base of each. — Among dead 

 leaves and on the roots of Hazel, Elm, &c. The glands in the 

 hollows of the buried scales probably aid in the absorption of 

 liquid organic food from the decaying leaves. — Fl. April, May. 

 Perennial. 



OrD. LVII. LeNTIBULARIE^.— BUTTERWORT FAMILY 



Herbaceous plants living in water or in marshy ground, bearing 

 either undivided radical leaves, or much divided cauline ones with 

 numerous small bladders on them. Their flowers are monosym- 

 metric, and either solitary or racemose ; the calyx inferior, 

 persistent ; corolla 2-lipped, spurred, deciduous ; stamens 2 ; ovary 

 superior, i -chambered ; style i, very short ; stigma oi 2 unequal 

 lips ; capsule 2-valved, many-seeded. The two British genera, 

 Utriculdria, the Bladderworts, and the Pinguicula, the Butterworts, 

 are both of them carnivorous. The former are submerged, rootless 

 plants with finely divided leaves, bearing minute bladders, fur- 

 nished with trap-doors, which capture water-fleas and other minute 

 aquatic animals, and yellow flowers which rise above the surface 



