1238 OROBANCHACEAE 
ae rusa onn 0.5-1.5 dm. tall: pedicels erect or ascending: calyx becoming 
2.5—3 PA Eu e, 12 mm. broad; spur conic, somewhat 
flattened, a t Wa as the lower lip. [Utricularia purpurea Walt.]— 
Ponds, various prov vn Tia to La., Minn., Ont., and Me.—(W. I.)—Sum.-fall. 
Famity 17. OROBANCHACEAE — BROOM-RAPE FAMILY 
Parasitic, commonly perennial herbs, without green coloring matter. 
eaves oo scale-like. Flowers perfect, or rarely dioecious, some- 
partly united Eus sometimes spathe-like. Corolla of 4 or 5 M 
united petals, the limb irregular or 2-lipped. Androecium of 4 didynamous 
stamens partially adnate to the corolla. Gynoecium of 2, or rarely of 
united earpels. Ovary 1-celled. Ovules mostly numerous. "uit a a Cap- 
sule. Seeds wingless.—About 11 genera and more than 200 doe most 
abundant in the Northern Hemisphere. 
Flowers perfect and complete throughout. 
Calyx iem spathe-like, the lower side split, the, upper with 3 or 4 tooth- 
like lobes: stamens exserted. 1. CONOPHOLIS. 
Calyx regular or nearly so, with 2-5 equal or unequal lobes: 
stamens include ea 
Calyx with a deep sinus above and below. 2. OROBANCHE. 
Calyx irr equally re lobe 3. THALESIA. 
Flowers various, cleistogamous on “lower part of spike, complete 
but mostly sterile a ove. 4. LEPTAMNIUM. 
1. CONOPHOLIS Wallr. Yellow or brownish herbs, with very stout stems 
and inflorescence. Leaves numerous. Flow- 
ers sessile, yellowish, crowded in the spike.— 
Three species, North Am n. 
1. C. americana (L. f. Pn Wallr. Plant 
elustered, us dm. tall: leaves em ovate 
10-15 mm. long. — (Squaw- ROOT. CANCER- 
ROOTS. )— —Rich woods, various provinces, Fla. 
to ich. and Me.—Spr.—The. squaw-root 
frequently pes in addis Eis oes 
plant resembles a fir or spruc ne. It 
pale, often Mid when Mut Du soon b 
comes brown 
OROBANCHE L. Whitish, yellowish, reddish, or violet herbs, math 
€ es slender stems. Leaves few. Flow- 
ers sessile, in a spike.—About 85 species, 
natives of the Old World. 
1. O. minor J. mith. Plant 1-5 dm 
tall: leaves (scales) ovate to o 6-20 
mm. long: 10 mm. long; 
out 
lanceolate- -su du s 11-15 mm. lo 
us bod the lo E add filaments pubes- 
capsule abou | 
=) 
RE 
on — 
den ) —Fields, od s provinces N. ae 
J. Nat ae ee —Spr.—sum.—Usually 
parasitic on clo ve Orobanche is the 
most wide-spread ud of this family. The 
plants of some species are restricted to a 
