Cistanche. — Orobanche. 887 
2,5 cm in diameter, stout, fleshy, like the whole plant, except the 
stamens and the inside of the corolla-tube, glabrous, 15—45 cm 
high. Scales fleshy, lurid purplish or tinged with yellow, lower 
crowded, triangular, caudate-acuminate or acute, upper ovate-lanceolate 
or lanceolate, scattered, 1—2 cm long, margins sometimes thin and 
more or less transparent. Spike cylindric rounded at the top, or 
when young comose by the uppermost bracts, from a few cm to 
30 cm long, usually dense, rarely somewhat loose; bracts ovate- 
oblong to lanceolate; as long as the calyx or shorter or longer, in 
substance and colour like the stem-scales; bracteoles linear, about 
as long as the calyx. Calyx wide-tubular-campanulate, 12—20 mm 
long, rarely longer, 5-lobed to */; or almost 7/, of its length; lobes 
broad, elliptic-oblong, rounded, more or less imbricate, margins 
membranous. Corolla bright yellow; tube 2—5 cm long, at first 
almost straight, then more or less curved, at length often obruptly 
bent at the middle, cylindric below the middle wide funnel-shaped 
above it, more or less villous below the insertion; Jobes much 
broader than long, 51/,—8 mm long, rounded. Filaments hairy 
towards the base; anthers wooly, cells acute to mucronulate at the 
base. — Flow. March to April. 
M. ma. M. p. N.d. O. D.i. D. a. sept. D. a. mer. Common 
in deep sandy places. 
Local name: haltk (Forsk.); dantin (Wilkins.); barntq (Figari); 
tarathit (Schweinfurth); turfas (Ascherson); zibb-eb-ard; bashar-el- 
ard; nabtia-el-ard; dantin-el-djinn (Ascherson). 
Also known from North and Tropical Africa. 
509. (2.) Orobanche Linn. 
Calyx persistent, campanulate, equally or unequally 3—5-dentate 
or 3—5-fid or split to the base in front and on the back with the 
divisions entire or 2-fid. Corolla tubular, often curved, with a more 
or less widened throat; limb more or less distinctly 2-lipped; upper 
lip entire, emarginate or 2-lobed; lower lip 3-lobed with raised folds 
between the lobes. Stamens 4, didynamous, included, inserted below 
the middle of the tube; filaments usually thickened at the base; 
anthers often coherent, cells parallel or slightly divergent and mucro- 
nate at the base. Ovary 1-celled with 4 placentas, approximate or 
contiguous in pairs, many-ovuled; style curved or almost straight; 
stigma funnel-shaped, peltate or distinctly 2-lobed, lobes lateral. 
Capsule dehiscing in the median plane, 2-valved, valves often cohering 
by the persistent style. Seeds very numerous, minute, subglobose; 
testa foveolate. Hmbryo minute, globose, consisting of a few cells, 
