l86. UMBELLIFERAE 405 



2.2. Secondary ribs clothed with wliite bristles. Primary ribs nearly glabrous. 

 Petals white. Umbels opposite to the leaves, with 2 — 4 rays. — Species 

 I, North Africa. The fruits serve as a condiment. (Under Daucus L.) 



Ammodaucus Coss. & Dur. 

 Secondary ribs beset with one row of long prickles. Primary ribs clothed 

 with short bristles. — Species 20. North Africa to Abyssinia ; one 

 species naturalized in Tropical and South Africa. Some species (especi- 

 ally D. Carota L., carrot) yield vegetables, gum-resin, and medicaments. 



Daucus L. 



23. (11.) Seeds very concave or marked with a deep furrow on the inner 



face 24 



Seeds flat, slightly concave, or somewhat convex on the inner face. . . 44 



24. Flowers polygamous, the sessile hermaphrodite ones surrounded each by 



several stalked males. Petals white. Style long. Fruit nearly always 

 one-seeded. Ribs indistinct. Albumen rolled in at the edge. [Tribe 



ECHINOPHOREAE.] 25 



Flowers of the primary umbels polygamous, but irregularly arranged, or 

 hermaphrodite. Fruit nearly always 2-seeded 26 



25. Ovary of the hermaphrodite flower adnate to the pedicels of the male, 



w^hich subsetiuently form a woody cup around the fruit. 0\l-channels 

 solitary in each furrow. — Species i. North Africa. The root is edible. 



Echinophora L. 



Ovary of the hermaphrodite flower not adnate to the pedicels of the male ; 



no cup around the fruit. Oil-channels 2 — 3 in each furrow. — Species i. 



Abyssinia Pycnocycla Lindl. 



26. Leaves undivided, entire. Calyx not toothed. Petals yellow or yellowish- 



green. Fruit laterally compressed. — Species 25. North and South 



Africa. Some are used medicinally Bupleurum Tourn. 



Leaves, at least the lower ones, dissected 27 



27. Fruit linear or oblong. [Tribe SCANDICINEAE, subtribe sc.\ndi- 



CINAE.] 28 



Fruit ovoid, globose, or biglobose 35 



28. Fruit beaked. Oil-channels very narrow, situated in the furrows and 



under the primary ribs 29 



Fruit not beaked. Oil-channels usually broad. Petals bent inwards 

 and notched at the tip 3^ 



29. Fruit with a long beak. Ribs obtuse. Calyx not toothed. Petals entire 



and not or shortly bent inwards at the tip. Umbels of few rays. — 



Species 3. North Africa. Used medicinally Scandix L. 



Fruit with a short beak 3^ 



30. Fruit cyhndrical, broadened at the base, without ribs in the lower part. 



Calyx not toothed. Petals narrow, entire and not or shortly bent 

 inwards at the tip. — Species 3. North and East Africa. One of them, 

 thecherval {A. Cerefolium Hoffm.) is grown as a pot-herb and also used 

 medicinally Anthriscus Hoffm. 



