Saa. LXXXVil. UROBANCHACEiE. Oroeanchb. 



lateral lobes appressed, loxoer lip entire ; spur incurved, conical, obtuse, appressed 

 ro the lower lip.— Stagnant waters, N. Y. to Ohio, Clark 1 S. to Ga. The plant 

 appears to be leafless, unless tlie hair-like lateral branches be considered leaves. 

 Utricles ver}^ small. Scapes 3 — 5' high, filitbrm, dividing near the top, with a 

 very minute bracteole at the Ibrk. Flowers yellow. 



7. U. PURPUREA. Walt. Purplc-Jlowered Bladder wort. 



St. long, floating, branched; Ivs. submersed, fibrillose, verlicillate, pin- 

 nately dissected, segments capillary, utriculate; scape assurgent,2 — 3-flowered; 

 upper lip roundish-truncate, lousr lip larger, its lateral lobes cucullate, smaller 

 ihan the central; s;;?<r conical, flattened, appres.sed to and shorter than the upper 

 lip. — Pools, Mass. 1 to Flor. W. to Wis. Readily known by the large, bright 

 purple flowers. Stem 1— 3f long. Leaves about IJ' long. Utricles small- 

 Scape 3 — 5' high. Corolla 8"' broad, the spur 3", greenish. Aug. 

 f § Boots fixed in the mud or earth. Leaves simple, linear, with few utricles^ 



8. U. RKsi;piNATA. Green. ("U. Greenii. Oakcs.) 



Sis. creeping, fibrillose, rooting; lis. linear-capillary, erect, undivided and 

 entire; scapes numerous, simple, 1-flowered, with a minute clasping bract near 

 the top; spur obtuse, cylindric, ascending, shorter than the elongated tube of the- 

 corolla. — Muddy shores of ponds, Tewksbury, (G?-ci:?(,) Plymouth and Uxbridge, 

 Ma.^s., Robbins I Leaves generally numerous, G — 15" high, the bract 1' below 

 the flovter. Corolla light purple, 4" long, lips roundish, entire, remote from- 

 the .spur. Jl. 



9. U. suBULATA. (U. setacea. Michx.) 



St. fibrillose, creeping, rooting, utriculate ; Ivs. few and minute, among 

 the fibrillose roots, entire, linear, petiolate, glandular-obtuse, sometimes ? 

 scapes lew, filiform, 1 — 5-flowered; bracts ovate, clasping; pedicels 4 — 5 times 

 longer than the ovate, obtuse, veined sepals ; cor. vpper lip ovate, entire, lower 

 3-lohed; spur acute, appressed to and nearly equaling the lower lip. — A minute 

 species, in swamp* and ditches. Can., Mass. ! to Flor. and La. Scapes 2 — 4'' 

 high. Leaves- 2 — 3" by i". Flowers yellow, 3^ — 4" broad. Jn. 



10. U. c6rnuta. Michx. Horned Bladdcrwort. 



Scape rooting, rigidly erect, scaly, with about 2 sessile flowers; spur subu- 

 late, acute, longer than the corolla. — % Native of damp, boggy soils, but never 

 floating, growing abundant in its localities. Can. to Mass. and Mich. Scape 

 8 — 12' high, leafless, but furnished with a i'evf small, distant, pale, ovate scales, 

 and bearing at the top 2 — 3 large, yellow flowers issuing from between bracts. 

 The calvx consists of 2, ovate, colored leaves. Lower lip of the corolla much 

 larger llian the upper, broad, defiexed, emarginate ; spur rigid, acute twice the 

 length of the calyx. Jl. Aug. 



IL U. PERsoNATA. Le Conte. Snap-dragon Dladdcrifoi'l. 



S'. strict, simple: roots few; lvs.O;Jls. 2 — 10; pedicels shorter than the 

 acute lobes of the calyx; cor. uppc? lip oblong, obovate, emarginate ; palate very 

 large; sp^ir linear-subulate, subacute, dependent, as long as the rest of the 

 corolla. — Bogs, N. Eng. to Flor. Resembles the last, but distinguishable by its 

 more numerous and smaller flowers, acute sepals, emarginate upper lip, and the 

 more slender and acute spur of the yellow corolla. Stem or scape 10 — 18' high. 



Order LXXXYII. OPtOBANCHACEiE.— Broomkapes. 



plants herbaceous, leafless, growing paiasitically Dpon the roots of other plants. 



t!l. furnished with siMJes and bearing soliLtiy or spicate (towers. 



Col. 4— 5-toothed, inferior. rer.si.-;tent. Coi: irreirul-ir, per.si-;tent, imbricate in a-stivation. 



tita. 4, didynarnou.^i. Ant>>. 2-celied, cells distinct, parallel, often bearded at base. 



Ova. l-celled, free from the caly.\, with 2 parietal placeriltp Sti/lc 1. Sj/g-;«ria-lobe(l. 

 P;\— Capsule enclose'! within the withered corolla, l-celled, 2-valved, each valve bearing one simple orS- 

 Ids. very numerous and minute. Uobed placenta in the iniddle. 



Genera 12, species 1!6, mostly natives of the northern temperate zone. Properties astringent and Litter. 



OROBANCHE. 



Gr. opo0oi, a vetch, ayj^civ^ to choke ; being supposed hurtful to the vetch and other plants. 



Calyx 2 — 5-cIoft. the segments often unequal ; corolla ringent, limb 



