412 l86. UMBELLIFERAE 



79. Fruit linear or linear-oblong. Oil-channels solitary in the furrows. Disc 



broadened at the base, with a wavy margin. Calyx-teeth distinctly 

 developed. Petals white, 3 — 5-nerved, notched. Involucre and in- 

 volucels present. — Species i. North Africa. Used medicinally. 



Falcaria Host. 

 Fruit oblong. Calyx-teeth minute or wanting 80 



80. Mericarps with 5 ribs at the back and near the margin and 2 smaller ones 



on the inner face. Oil-channels soHtary in the furrows and under the 

 ribs, very narrow. Disc reduced to a swelling of the base of the 

 stj'les. Umbels panicled. Involucre wanting. Involucels of few 

 bracts. — Species i. West Africa (Cameroons). [Lereschia Boiss., 

 under .4w/Amc//,s L.) Cryptotaenia DC. 



Mericarps with 5 ribs only. Oil-channels only in the furrows. Disc 

 broadened at the base, with a wavy margin. Umbels terminal and 



lateral 81 



Si. Involucre of many large dissected bracts. Petals unequally 2-lobed. 



Oil-channels solitary in the furrows. — Species 5. North and Central 



Africa. Used medicinally ; one species has edible roots. . Ammi L. 



■ Involucre of usually few entire bracts or wanting. Petals equally 



notched 82 



S2. Root-stock tuberous. Oil-channels i — 3 in each furrow. Embryo with a 

 single cotyledon. — Species 6. North Africa. The tubers are edible. 

 (Including DiapJiycarpus Calestani, partly under Carum L.) Bunium L. 



Root-stock not tuberous. Oil-channels solitary in each furrow. Embryo 

 with 2 cotyledons. — Species 7. North Africa, Abyssinia, Madagascar, 

 and South Africa; one species (C. Carvi L., caraway) also cultivated 

 elsewhere. The fruits of this species are used as a condiment and for 

 preparing an aromatic oil ; eaten in large quantities they are poisonous. 

 Other species yield edible roots or medicaments. (Including Selinopsis 

 Coss. et Dur., partly under Bunium L.) Carum L. 



83. Oil-channels numerous, narrow. Ribs filiform. Herbs or undershrubs. 



Leaves dissected or the lower lobed 84 



Oil-channels solitary in each furrow, rarely (Rhyiicarpus) 3, large, but then 

 shrubs and upper leaves undivided 85 



84. Calyx toothed. Petals white. Involucre and involucels large, persistent. 



— Species 7. Central and South Africa and Egypt. Some are used as 



vegetables. (Including Berula Koch) Sium L. 



Calyx not toothed. Involucre and involucels usually wanting. — Species 

 25. The fruits of P. anisiim L., anise, serve as a condiment ; other 

 species are used in medicine. (Including Reuiera Boiss.) Pimpinella L. 



S$. Pericarp densely bristly or warty. Ribs filiform 86 



Pericarp smooth or wrinkled, not hairy 87 



S6. Calyx toothed. Petals deeply notched, white. Fruit tubercled upon the 

 ribs, not hairy. Herbs. Leaves twice or thrice pinnately dissected 

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



