706 Umbelliferae. 
M. ma. Sea side cliffs in Marmarica: Matruqa; Alexandria-West. 
Widely distributed at the coasts of Western Europe (the “sanphiri” in 
Shakespeare’s King Lear, still to day abunding in Shakespeare’s cliff at 
Dower), and Northern Africa. 
395. (18.) Duerosia Boiss. 
Calyx with 5 minute teeth. Petals obovate entire with inflexed 
limbs. Fruit plane-compressed from the back, margin dilatate tumid 
smooth. Mericarp with 5 ridges, filiform. Seeds plane. Vittae 
solitary in the ridges. — Glaucous herb, petals white not radiante, 
puberulous at the outer side. 
A small genus with (besides ours) only two species in the Eastern Orient. 
1000. Ducrosia Ismaelis Aschers. in Sitzber. naturf. Freunde 
Berlin (1879), p.44 and in Sitzber. Bot. Ver. Prov. Brandbg. XXI 
(1879), p.67. — Aschers.-Schweinf. Ill. Flor. d@Eg., p.81 no. 476. 
— Sickenberg. Contrib. Flor. d’Eg., p. 240. — An annual, glabrous 
plant, glaucous, in the lower parts pruinose; stems striate, 15 to 
20 cm long or sometimes somewhat more, in the lower part densely 
leafy, branching, in the upper parts without leaves. Leaves long- 
petioled, vagina short, with a white margin, lamina in outline 
rotundate-ovate, pinnately ternate lateral segments sessile, like the 
terminal-one with lanceolate-linear acute segments, white-callose at 
the apex; umbels 4—9-rayed; the bracts of the involucre and the 
involucel triangular-lanceolate, broadly white-margined; ovary 
hirtellous; fruit umbilicate elliptical 5 mm long, 3,5 mm_ thick, 
sparingly hirtellous; mericarp as in the generic diagnosis. — 
Flow. March. 
O. Great Oasis: In waste and sandy places near Khargeb. 
Only known from this locality. 
396. (19.) Ferula Tourn. 
Calyx-teeth rather prominent, small. Petals ovate, with inflected 
lanceolate acumen, slightly emarginate, nearly equal. Stamens with 
filaments longer than the petals. Disk flat, with narrow undulating 
margin. Fruit oval, dorsally much compressed. Primary ridges 5, 
blunt except the marginal ones, which are winged, 3 (or rarely 2) 
being plainly visible on each dorsal face. Vittae about 3 between 
each primary ridge, and 4 on the commissural face; carpophore 
bipartite. Seeds dorsally compressed, somewhat concave. — Perennial 
glaucescent herbs. Leaves highly decompound with filiform segments. 
Petioles of the upper leaves much dilated, sheathing. Umbels regularly 
