Sonchus, — Lactuca. 1063 
1492. (4.) Sonchus maritimus L. Spec. Plant. I (1753), p.1116. 
— Aschers.-Schweinf. Ill. Flor. d’Eg., p.99 no. 645. — Sickenberg. 
Contrib. Flor. d@Eg., p. 253. — Rehbch. Ic. XIX, tab. 62. — A peren- 
nial herb, 40—60 cm high; stems hollow, simple bellow or with 
few branches. Leaves linear-lanceolate entire or with few, sinuate 
teeth. Scales of the involucre broad, obtuse, the outer ones oblong, 
the inner ones oblong-lanceolate; achenes with broad and_ thick 
margins, and 3-elevated ribs. — Flow. March to April. 
O. Great Oasis. — D.1. Wady Natrun. 
Local name: libbeyn. 
Also known from Spain, France, Italy and other parts of North Africa. 
1493. (5.) Sonchus arvensis L. Spec. Plant. I (1753), p, 1116. 
— Boiss. Flor. Or. III, p.798. — Rehbch. Ic. XIX, tab. 61. — Aschers.- 
Schweinf. Ill. Flor. d’Eg., Supplem. p. 767. — Rootstock creeping. 
Stems 30—90 cm high. Leaves long, pinnatifid or sinuate, the lobes 
lanceolate or triangular, more or less curved downwards, and bordered 
by small prickly teeth; the lower ones stalked, the upper ones clasp- 
ing the stem with short, broad auricles. Flower-heads large, of a 
bright yellow, in loose terminal panicles; the branches, peduncles, 
and involucres more or les hispid with brown or black glandular 
hairs. .Achenes striated and transversely wrinkled, with a pappus 
of copious, white, silky hairs. — Flow. March to April. 
-N.d. Menzale in rice-fields. 
Also known from whole Europe. 
617. (77.) Laetuea Linn. 
Heads of numerous yellow flowers, all ligulate and fertile. In- 
volucre campanulate; bracts herbaceous, 2—3-serial, imbricate. Recep- 
tacle flat, naked. Anthers sagittate at the base, not tailed. Style- 
branches terete. Achenes broad, glabrous, flattened, with a distinct 
beak and a long pappus of copious, soft, fine, simple hairs. — Herbs, 
with milky juice, alternate often compound leaves, and numerous 
heads in loose panicles. 
A considerable genus, widely spread over the Old World and North 
America. 
A. Heads more than 5-flowered, about 1 em long. More 
or less prickly plants. 
I: Plowérs; palidigeiig es POC Sao). ee 1. L. seariola, 
II. Flowers yellow or violet-blue ........ 2. L. saligna. 
B. Heads 5-flowered, less than lcm long ...... 3, L. orientalis. 
