Datura. 851 
erect, 90 em to 1,50 m high, herbaceous, terete, subdichotomous, 
densely pubescent. Leaves solitary or the upper ones geminate, 
ovate, entire or repand-dentate, up to 16 cm long and 8 em broad, 
densely pubescent on both surfaces, generally glandular. Flowers 
shortly pedicellate, at first erect, finally cernuous. Calyx tubular, 
6 cm long, slightly pubescent; teeth 5, unequal, triangular-oblong. 
Corolla white, nearly twice as long as the calyx; limb 10-toothed. 
Filaments glabrous; anthers erect, white. Ovary muricate. Capsule 
globose, pendulous, spiny, dehiscing irregularly. — Flow. January 
to March. 
N. d. N. v. Caire; Island of Roda; ’Abbasiya; Shubra naturalized. 
Cosmopolitan in the Tropics; probably originally from South Tropical 
America. 
1194. (2.) Datura fastuosa L. Syst. Plant., ed. X (1783), p. 932. 
— Aschers.-Schweinf. Ill. Flor. d@Eg., p.113 no. 763. — Boiss. Flor. 
Or. IV, p.292. — Dun. in DC. Prodrom. XIII, fase.I p. 542. — 
Wight Icon., tab. 1396. — Mart. Flor. Brasil. X, p. 162. — Datura 
aegyptiaca Vesl. Plant. Aegypt, p. 202. -— Annual. Stem erect, 
1,20—1,50 m high, branched, dark purple with scattered white spots. 
Leaves up to 19 cm long and 5 cm broad, the upper sometimes 
geminate, ovate-lanceolate, acuminate, sinuate or repand-dentate, 
unequal at the base, glabrous on both surfaces. Flowers erect. 
Calyx tubular, 5 cm long; teeth 5, triangular-lanceolate, acuminate. 
Corolla white inside, violet outside, 5—6-plicate, folds long-cuspidate. 
Anthers linear, purplish. Capsule spiny, pendulous, dehiscing irre- 
gularly. —- Flow. February to March. 
M. ma. Ramle; N.d. Canal-el-Farka (Maire); Ismailia, fresh 
water-canal. 
Local name: zamr-es-sultian. 
Cosmopolitan in the ‘Tropics. 
1195. (3.) Datura suaveolens Humb. and Bonpl. ex Willd. 
Enum. Plant. Hort. Berol. (1809), p. 227. — DC. Prodrom. XII, 
p. 545. — Mart. Flor. Brasil. VI, p. 161. — A robust erect perennial 
herb. Stem thick branched. Leaves ovate-oblong, entire, petiolate, 
acute, 6—12 em long. Calyx inflate, angulate, glabrate, persistent 
at the base, 5-toothed. Corolla with 5 lobes, triangular, spreading 
or recurved. Stamens included; filaments white, adnate to the corolla- 
tube, pubescent; anthers compressed, subextrorse. Ovary globular, 
bilocular. Capsule about 5 cm long, erect, ovoid. — Flow. March. 
M. ma. N. d. Cultivated in gardens and often naturalized. 
Also known from Tropical South America. 
54* 
