1018 j Compositae. 
587. (47.) Calendula Linn. 
Heads many-flowered, radiate, heterogamous. Involucre imbricated 
in about 1 row, scales-nearly equal. Rays strap-shaped, pistillate; 
fertile; branches of style linear. Flowers of disk tubular, perfect, 
5-cleft, sterile, stigma capitate. Achenes in 2—3 rows, curved, of 
different forms, the outer ones prickly at the back. — Perennial, 
biennial, or annual herbs, with orange-colored or yellow rays. 
A small genus widely spread in the Mediterranean region. 
A. Ray-flowers twice as long ats the involucre. 
I. Marginal achenes 3—4 times as he: as the 
ray fovwoKedey Qe <i opetcaee seule 2 Co palaestiuvas 
IJ. Marginal achenes 1,9 Lee as whee as the 
INVOlICTC |. wen ais ieee oe mG. bicolor 
B. Ray-flowers once and a ‘half as pee as Sanat involucre 3. C. persica. 
C. Ray-flowers as long as the involucre. . ... . 4. C. aegyptiaca. 
1412. (1.) Calendula palaestina Boiss. Diagnos. Plant. Or., ser. I 
fase. X (1849) p. 83. — var. brachyrrhyncha Aschers.-Schweinf. 
Ill. Flor. @’Eg., p. 92 no. 585. -— Sickenberg. Contrib. Flor. Hes 
p. 248. — Calendula ceratosperma Viv. Flor. Libye., p. 59 tab. 20. 
Calendula stellata Cosson Sertul. Tunet., p.31. — An annual nan 
20—50 cm high or sometimes somewhat more, somewhat roughish, 
glutinous; branches erect. Heads 1,5 cm broad; rays twice as long 
as the involucre; marginal achenes with 2—2,5 cm long beaks, 3—4 
times as long as the involucre, frequently crested-toothed at the 
margin; intermediate ones much inflated, boat-shaped; inner ring- 
like, prickly at the back. — Flow. March to April. 
M. ma. Alexandria. 
Also known from Palestine. 
1413. (2.) Calendula arvensis L. Spec. Plant. I (1753), p. 1303. 
~~ yar. bicolor DC. Prodrom. VI (1837), p. 452. — Calendula bicolar 
Rafin. Caratt., p. 82. — Boiss. Flor. Or. Ill, p. 418. — Aschers.- 
Schweinf. Ill. Flor. d’Eg., p. 91 no. 586. — Aschers.-Schweinf. II. 
Flor. d’Eg., Supplem. p. 763. — Sickenberg. Contrib. Flor. d’Eg., p. 248. 
—— Rehbeh. Ic. XV, tab. 159. — Calendula arvensis Coss. in Bull. 
Soc. Bot. Franc. XXII, p.66 not of Linn. — An annual plant, 20 to 
40 em high, pubescent; stems erect or decumbent. Heads 1,5 cm 
broad, about twice as long as the involucre; outer achenes beaked, 
once and a half to twice as long as the involucre; intermediate 
ones inflated, boat-shaped; inner ring-like, wrinkled at the back. — 
Flow. March to April. 
