Heliotropium. 783 
+ Leaves obovate ....... 4, ovalifolium. 
ire leaves Oblonpy<rrt - wear) ah 5 5. H. europaeum. 
2. Stigma cup-shaped (depressed conical) 6. H. villosum. 
I. Perennials. 
a) Corolla-lobes triangular-linear, with in- 
volute margin, connivent in bud... . 7. H. luteum. 
b) Corolla lobes ovate or oblong, imbricated 
in bud; tube glabrous inside, silky or 
hirsute outside. 
mo 
1. Stigma mushroom-shaped ..... . 8. H. arbainense. 
2. Stigma with a conical crest. 
Q)) Stems, PrOcumbent wks. .6. 65 chika thes 9. H. undulatum. 
B) Stems nerects . lsat ccf deel ou sc gels 10. H. persicum. 
1090. (1.) Heliotropium zeylanicum Lam. Encyclop. IL (1789), 
p- 94. — Wight, Icon., tab. 892. — Helianthemum curassavicum 
var. zeylanicum Burm. Flor. Ind., p. 41 tab. 16 fig. 2. — Heliotropium 
subulatum Hochst. ex Vatke in Linnaea XLII, p. 316. — Helio- 
tropium gracile R. Br. in Salt Abyss. Plant. App., p. LXIIl. — 
Tournefortia zeylanica Wight Icon., tab. 170 fig. B. — Tournefortia 
subulata Hochst. ex DC. Prodrom. IX, p.528. — Perennial. Stems 
slender, erect, woody, much branched, finely pubescent and with long 
white bristles. Leaves linear or linear-lanceolate, 2—6 cm long, 
narrowed to the base, with bulbous-based hairs especially on the 
upper side, pubescent beneath, sessile or shortly petioled. Spikes 
lax, ebracteate, finally 9—20 cm long. Calyx 2 mm long, hairy 
outside; lobes ovate. Corolla-tube 2 lin. long, hairy outside; lobes 
1 lin. long, caudate-acuminate. Anthers inserted in the upper part 
of the corolla-tube, lanceolate; connective produced above, bifid. 
Style 2 mm long, glabrous; stigma conical, slightly shorter than 
the style. Fruit depressed globose, not longer than the calyx, nutlets 4, 
often cohering in pairs, rugose. — Flow. January to April. 
N. d. Naturalized everywhere in the gardens of Cairo. 
Local name: dafara. 
Occurs also everywhere in the Mediterranean region and in the drier 
parts of the Orient and India. 
1091. (2.) Heliotropium supinum L. Spec. Plant. I (1753), 
p. 130. — Boiss. Flor. Or. IV, p. 127. — DC. Prodrom. IX, p. 533. — 
Aschers.-Schweinf. Ill. Flor. d’Eg., p.109 no. 715. — Sibth. and Smith 
Flor. graec., tab. 157. — Heliotropium ambiguum DC. Prodrom. IX, 
p. 533. — Lithospermum heliotropioides Forsk. Flor. aeg.-arab., p. 39. 
— Piptoclemia supina G. Don Gen. Syst. IV, p.364. — Annual, 
hirsute, much branched. Stem decumbent at the base. Leaves 
