Ceruana, — Laggera. 969 
- 1330. Ceruana pratensis Forsk. Flor. aeg.-arab. (1775), p. 74. 
— Boiss. Flor. Or. HII, p.177. — Aschers.-Schweinf. Ill. Flor. d’Eg., 
p. 85° no. 513. — Sickenberg. Contrib. Flor. d’Eg., p. 244. — DC. 
Prodrom. V, p. 488. — Ceruana rotundifolia Cass. Dict. XH, p. 123. 
— Ceruana senegalensis DC. Prodrom.V, p.488. — Buphthalmum 
pratense Vahl Symb. Bot. I, p. 75. — Del. Ilustr. Flor. d’Eg., tab. 48 
fig. 2. -- Ceruana fruticosa Less. Synops. Compos., p. 202. — Erect 
branched hirsute or pubescent annual, 30—60 cm high; stem strict 
or ascending; branches terete faintly striate. Leaves obovate, 
rounded at the apex, pinnatifid or coarsely toothed, hairy on both 
sides, more or less narrowed to a clasping sessile often auricled 
base, or petiolate, lower 21/,—5'/, cm long; upper shorter, some- 
times lyrate or subentire. Capitula 8—11 mm diameter, subsessile 
or on peduncles varying to 5 cm terminal and leaf-opposed along 
the branches of dichotomous cymes, surrounded at or near the base 
by 2 or more bracts equalling or overtopping the heads. Scales 
of involucre herbaceous unequal; outer rather exceeding the disk, 
uni-biseriate, erect, hairy, lanceolate, acute; inner about equalling 
the disk, coriaceous, linear-oblong, acute. Paleae of receptacle fim- 
briate-ciliate at base, slightly dilated above, exceeding ovaries. Ray 
flowers 2—-3-seriate. — [Tlow. March to April. — Generally used 
for making little brooms, found already in old Kgyptian Tombs. 
M. ma. Abusir; Mariut; Behig; Alexandria-West and -East. — 
N. d. N. v. Often in sandy places. 
Local name: karwain (Forsk., Del.); generally: shedid; shideyd. 
Also known from Tropical Africa. 
549. (9.) Laggera Sch. Bip. 
Capitula heterogamous, many-flowered, disciform; outer flowers 
female numerous, filiform; disk-florets tubular. Involucre campanulate 
or hemispherical; scales co-seriate, usually rather rigid, the outer 
frequently recurved, ovate-lanceolate or linear-lanceolate to narrow- 
linear, outer smaller. Receptacle naked. Corolla of the female flowers 
tubular, filiform, mouth dendate; of inner flowers tubular toothed. Anther- 
base 2-dentate, often unequally or shortly sagittate, not distinctly 
tailed nor with the produced hases cohering in pairs. Style-branches 
narrow-linear papillose. Achenes glabrous or thinly pilose, the hairs 
often in faint longitudinal rows; pappus 1-seriate, setiform. — Herbs 
or frutescent below, tomentose pubescent scabrid or glabrate. Leaves 
alternate, simple, entire or denticulate, decurrent. Capitula varying 
to 2 cm diam., variously panicled or axillary. 
A small genus of the Old World Tropics. 
