Heliotropium. 787 
ebracteate, finally 5—8 em long. Calyx very glandular, hairy, 5 mm 
long; tube short; lobes ovate. Corolla-tube hairy, twice as long as 
the calyx; lobes small, ovate. Stamens inserted just below the 
middle of the corolla-tube; anthers lanceolate, acute. Stigma mush- 
room-shaped, glabrous, nearly sessile. Nuts 4, shorter than the calyx, 
rugose, glabrous. — Flow. March to April. 
D. a. sept. D. a. mer. Common in the Wadies, mostly in shady 
places. 
Local name: rahab (Schweinfurth); dafara (Schweinfurth). 
Also known from Tropical Africa, Arabia and Afghanistan. 
1098. (9.) Heliotropium undulatum Vahl Symb. I (1790), 
-p. 13. — Boiss. Flor. Or. IV, p. 147. -— Desf. Flor. Atlant. I, p. 151 
tab. 41. — Aschers.-Schweinf. Ill. Flor. d’Eg., p. 109 no. 721. — 
Aschers. Flor. Rhinocol., p. 801 no. 180. — DC. Prodrom. IX, p. 536. 
— Heliotropium crispum Desf. Flor. Atl. I, p. 151. — Lithospermum 
hispidum Forsk. Flor. Flor. aeg.-arab., p. 38. — Perennial, much- 
branched. Stem slender, suberect, densely clothed with white bulbous- 
based bristles. Leaves scabrid on both surfaces, undulate, the upper one 
lanceolate, sessile, the lower one oblong, tapering into a short petiole, 
up to 51/, cm long and 17 mm broad. Spikes many, short, dense, 
ebracteate. Calyx 2 mm long, hairy outside; lobes 5, oblong, trun- 
cate, as long as the tube. Corolla 2°/, mm long; tube slightly 
inflated near the middle; lobes short, rounded, much undulated. 
Stamens inserted about half-way up the corolla-tube; anthers lan- 
ceolate, acute. Style short, thick, glabrous; stigma conical. Fruit 
globose, almost 2-winged, pilose at first, finally glabrous; nutlets 4, 
rugose. — Flow. December to April. 
M. p. El-“Arish. — D.1. D.i. D. a. sept. D. a. mer. A charac- 
teristic plants of the sandy deserts and the Wadies. 
Local name: medéb (Ascherson). 
Also known from Morocco, Algeria, Tunisia, Tripolitania, Arabia Petraea 
and Palestine. 
1099. (10.) Heliotropium persicum Lam. Dict. III (1789), 
p. 94. — Aschers.-Schweinf. Ill. Flor. d’Eg., p. 109 no. 722. — Helio- 
tropium eriocarpum Del. in Lehm. Asp., p.55. — Burm. Ind. Flor., 
p. 41 tab. 29. — A perennial herb, 20—40 cm high or more, rough 
with grey bristles; stems erect. Leaves nearly sessile, lanceolate 
to linear, acutish, wavy-margined. Spikes rather loose, 1-ranked; 
corolla-tube somewhat longer than the calyx; lobes somewhat longer 
than the tube; stigma short-conical, somewhat longer than the style: 
nutlets hirtulous, separable. — Flow. February to March. 
50% 
