Order 82.— OROBANCHACEiE. 511 



Car. Submersed stems dichotomous, short and filiform. Scapes 2 to 3' high, 

 often with but 1 email, yellow flower The lvs. appear rather like fine radi- 

 cles. Jl. 



9 TJ. tripartita Ell. Lvs. fibrillous-multifid, bearing tho bladders; scapo 1 to 3- 

 flowered; lower lip of the calyx bifid or 2-paried; cor. lips entire, tho lower twice 

 a* long as the obtuso spur. — J) Ditches, G-a., Fla., iu soft, muddy places (Elliott), 

 floating (Lo Conte). Scapo 2 to 3' high. Oct. 



10 IT. minor L. Lvs. submersed, several times forked, segm. linear-setaceous, 

 short, utrieulate ; scapo 3 to 6-flowered; cor. ringent, upper lip ovate, emarginate, 

 as long as tho palato, lower obovate, flat, much longer than tho obtuse, deflexed 

 spur. — Pools, Can. and N. States to Wis. Plant about half tho sizo of No. 11. 

 Cor. gaping, pale, yellowish. Fruit nodding. Jl. 



11 IT. vulgaris L. Lvs. capillaceous, muliifid, fibrillous ; vesicles numerous, small ; 

 st. or rhizoma very long, floating; scapo simple, 5 — ll-floweredl spur conical, 

 obtuse, shorter than the closed cor. lips. — If In stagnant pools, U. S. and Can. 

 Floating stems several feet long, very branching. Leaves very numerous, 1' iu 

 length. Utricles furnished with a fringed, valvato aperture, usually inflated. 

 Scapo 5 — 10' high, stout, arising out of the water. Flowers alternate, showy, 

 yellow, 5 — 6" long, lower lip larger, with a projecting palate, striped with brown. 

 Jn., JL (U. macrorhiza Le Conte.) 



12 U. resupinata Green. Sts. creeping, fibrillous, rooting; lvs. linear-capillary, 

 erect, undivided and entire ; scapes numerous, simple, 1-llowered, with a minute 

 clasping bract near tho top ; spur obtuse, cylindric, ascending, shorter than the 

 elongated tube of tho purplo cor. — Muddy shores of ponds, Tewksbury (Green), 

 Plymouth and Uxbridge, Mass. (Robbins). Leaves generally numerous, 6 — 15" 

 high, tho bract 1' below the flower. Corolla light purple, 4" long, lips roundish, 

 entire, remote from tho spur. Jl. 



13 17. subulata L. Minute; st. fibrillous, rooting, creeping, urticulate; lvs. few 

 and minute, among the fibrillous roots, entire, linear, petiolate, glandular-obtuse, 

 sometimes ? scape3 few, filiform, 1 to 5-flowcred ; bracts ovate, clasping ; pedi- 

 eels 4 to 5 times longer than the ovate, obtuse, veined sepals ; cor. upper lip ovate, 

 entire, lower 3-lobed ; spur acute appressed to and nearly equaling the lower lip. 

 — A minuto species in springy places, Can. to Fla. and La. Scapo 2 to -1' high. 

 Lvs. 2 to 3" by 1". Fla. yellow, 3 to 4" broad. Jn. 



14 IT. cornuta Mx. Scape rooting, tali, erect, scaly, with 2 to 5 subsessilo fls. ; 

 lvs. fugacious or ; lower lip very broad, 3-lobed, its center i (palate) very prominent, 

 sides reflexed, upper lobe much smaller, emarginate;. spur subulate, acute, de- 

 curved away from the cor., and of equal length. — Can. to Fla. and La., in shallow 

 waters or mud. St. or scapo 9 to 12' high. Pedicels scarcely 2" long in flower, 

 3 to 6" in fruit. Spur 4 to 4" long. Fls. large, yellow. Jn. — Aug. (U. per- 

 sonata Lo Conte.) 



Order LXXXII. OROBANCHACEJE. Broomrapes. 



Herbs fleshy, leafless, growing parasitically upon tho roots of other plants. Calyx 

 4 to 5-toothed, inferior, persistent. Corolla irregular, persistent, imbricate in aesti- 

 vation. Stamens 4, didynamous. Anthers 2-celled, cells distinct, parallel, often 

 bearded, at base. Ovary 1-celled, free from the calyx, with 2 or 4 parietal placen- 

 tas. Capsule enclosed within the withered corolla, 1-celled, 2-valved. Seeds very 

 numerous and minute, with albumen. 



Gensra 12, ttpecics 116, mostly natives of tho northern temperate zone. Properties astringent 

 and bitter. 



GENERA. 



* Flowers polygamous, on spieato branches ; r-terilo above, fertile below Knpnr.or8. 1 



* Flowers perfect,— in a dense, thick spike. Calyx 2-bracted Conoimiolis. 3 



—on naked, termiaal peduncles. Calyx bractless Atjiyllon. 8 



1. EPIPHE V GUS, Nutt Beechdrops. (Or. tm, upon, <pr)y6c, tho 

 beech ; being parasitic on the roots of that tree.) Monceciously polyg- 



