410 l86. UMBELLIFERAE 



62. Oil-channels numerous, crowded around the seed. Pericarp thickened^ 



spongy. Fruit egg-shaped. Calyx toothed. Petals narrowed and 

 rolled in at the tip, white. Undershnibs. Leaves flesh}', with narrow 

 segments. Involucre and involucels of many bracts. — Species i. 

 North Africa. Used as a pot-herb. " Samphire." Crithmum Tourn, 

 Oil-channels solitary in the furrows, rarely (Seseli) accompanied by a second 

 channel in each furrow or one under each rib 63 



63. Calyx toothed. Petals white or reddish. I nvolucel present ... 64 

 Calyx not toothed 67 



64. Stem woody, shrubby. Petals elliptical, entire, with an inflexed point. 



Fruit oblong, not compressed, glabrous. Disc depressed. Leaves 

 once or twice dissected. — Species 2. South Africa. 



Polemannia Eckl. & Zeyh. 

 Stem herbaceous 65 



65. Petals lanceolate or elliptical. Disc biglobose. Fruit narrowly bottle- 



shaped, compressed from front to back, hairy. Involucre present. 



Leaves thrice dissected. — Species 2. Canary Islands. Todaroa Pari. 



Petals broad-cordate. Disc conical or flattened. Fruit oblong or oval. 66 



66. vSeeds concave on the inner face. Fruit cylindrical, with warty or bristly 



ribs. Oil-channels solitary in the furrows. Disc conical. Styles long, 

 with broad stigmas. Flowers hispid. Involucre present. Leaves 

 twice pinnatisect, with broad leathery segments. — Species 3. Central 



Africa Physotrichia Hiern 



Seeds flat on the inner face. Leaves, as a rule, repeatedly pinnatisect and 

 with narrow segments. — Species 7. North and South Africa. Some 

 arc used in medicine. (Including Libanotis Crantz) . . Seseli L. 



67. Involucels and involucre wanting. Petals yellow. Disc conical. Pericarp- 



not essentially thickened. Leaves with linear segments. — Species 2. 

 North Africa and Abyssinia, one species also naturalized in other regions. 

 They yield vegetables, condiments, perfumes, and medicaments, and 

 serve also as ornamental plants. " Fennel ". . . Foeniculum L. 

 Involucels of a few bracts. Petals white or greenish-white. Pericarp 

 thickened. Leaves with oblong, lanceolate, or elliptical segments. . 68 



68. Involucre of a few bracts. Petals oblong, greenish-white. Disc conical. 



Fruit oblong ; furrows narrow. — Species i. Madagascar. Used 



medicinally Phellolophium Bak. 



Involucre absent. Petals obovate, white. Disc flattened. Fruit ovoid ; 

 furrows broad. — Species i. North-west Africa. I'oisonous and used 

 medicinally. " Fools parsley." Aethusa L. 



69. (58.) Ribs of the fruit broad and rounded. Carpophore none. Oil- 



channels s(;]itary in the furrows. Calyx-teeth large. Petals obovate, 



white. Involucels of many bracts. — Species 10. North and South 



Africa, Some are poisonous or userd in medicine. . . Oenanthe L. 



Ribsof the fruit slender, filiform. Carpophore present 70 



