Lithospermum. 799 
A. Annuals. Nutlets ovate-triquetrous, tubercled or 
pitted-tubercled. 
I. Fruiting pedicels thickened. 
a) Nutlets acutely tubercled ....... 1. L. arvense. 
b) Nutlets slightly tubercled ....... 2. L. incrassatum. 
II. Fruiting pedicels not thickened. . . . .. 3. L. tenuifiorum. 
B. Shrubs. Nutlets ovate triquetrous, nearly smooth 4. L. callosum. 
1118. (1.) Lithospermum arvense L. Spec. Plant. 1 (1753), 
p. 190. — Boiss. Flor. Or. IV, p. 216. — Aschers.-Schweinf. Il]. Flor. 
WEg., p.110 no. 740. — Rhytispermum arvense Rchbch. Ic. XVIII, 
tab. 113 fig. 5. — DC. Prodrom. X, p.574. — Flor. Dan., tab. 456. 
— An annual plant, 20—40 cm high, or somewhat more, appressed- 
strigulose, green; stems branching from the base, erect or decumbent. 
Leaves obovate to oblong, oblong-lanceolate, and linear, the lower 
tapering to a petiole. Fruiting pedicels little thickened; ones corolla 
white, rarely bluish; nutlets pitted, acutely tubercled. — Flow. 
February to April. 
M. ma. Mariut; Alexandria-West and -East. 
Local name: halem. 
Also known from Morocco, Algeria, Tunisia, Tripolitania, Hurope, 
Caucasia, Syria, Persia and Afghanistan. 
1119. (2.) Lithospermum incrassatum Guss. Prodrom. Flor. 
Sic. I (1842), p.211. — Boiss. Flor. Or. IV, p.217. — Aschers.- 
Schweinf. Ill. Flor. d’Eg., p.110 no. 741. — Lithospermum Gaspar- 
rimii Heldr. in Guss. Syn. I, p. 217. — An annual herb, 20—40 cm 
high, or sometimes somewhat more, appressed-strigulose, green; 
stems branching from the base, erect or decumbent. Leaves obovate 
to oblong and linear, the lower ones tapering to a petiole. Fruiting 
pedicels thickened; corolla blue, rarely white; nutlets pitted, slightly 
tubercled. — Flow. March to April. 
M. ma. Sidi Gaber; Ramle; recently introduced. 
Also known from Arabia Petraea, Palestine and Syria 
1120. (3.) Lithospermum tenuiflorum L. Fil. Supplem. (1781), 
p. 1830. — Boiss. Flor. Or. IV, p. 217. — Aschers.-Schweinf. Ill. Flor. 
dHg., p.110 no. 742. — Rhytispermum tenuiflorum Rchbch. Ic. XVII, 
tab. 113 fig. TV. — An annual herb, 20—50 cm high, strigulose- 
hispid, often yellowish, branching from the base. Leaves oblong- 
spathulate petioled, to oblong-linear sessile. Pedicels very short, un- 
changed in fruit; corolla blue, rarely white; nutlets 2 mm long, 
tubercled, not pitted, with two lateral gibbi and a short beak. — 
Flow. February to March. 
