254 DICOTVI.EDONS. UMBELLIFER/E. Apiltm. 



'1-2. CH.EROPHYLLUM. 



Partial involucre of about 5, reflexed, concave leaves. Fruit 

 lincar-oblong, glabrous, smooth or striated. 



* Fruit smooth (not striated) . 



1 . Ch. si/lvestre, stem a little swelling below each joint glabrous, 

 umbels on long stalks, p. 9.'3. — Hedges, &fc. 



2. Ch. sativum, umbels lateral sessile, fruit a little swelling below. 

 p. 93. — Hedges and about gardens. 



** Fruit striated. 



a. Ch. tsnmlentum, stem rough (spotted) swelling below each 

 joint, p. 93 — Hedges. 



4. Ch. odtrratum, seeds deeply sulcate (very large), p. 93. — Or- 

 chards, tsfc. 



5. Ch. aureum, pubescent, stems slightly swelling below the joints, 

 leaflets very acuminate inciso-pinnatifid, seeds coloured fur- 

 rowed, p. 94. — Fields, rare. 



G. Ch. aromaticurn, leaflets ovato-obiong subacuminate serrate 

 undivided, p. 94. — Road-sides, rare, 



23. IMPERATORIA. 



Fruit nearly elliptical, compressed, bordered, swelling in the middle 

 with 3 ribs on each side. 



1. I. Ostruthiuvi. p. 94. — Near old luildings, in luaste places. 



C. Umbels ivithout involucres ; rarely general, never partial ones. 

 24. SMYRNIUM. 



Petals acute, keeled, incurved. Fruit ovato-globose, gibbous. 

 Seeds {Akenia) reniforni, angular. 



1. S. Olusatrum, cauline leaves ternate petiolate serrate, p. 94. 



— Waste places near the coast. 



■25. CARUM. 



Gen. involucre of 1 or very few leaves. Petals inflexo-emarginate. 

 Fruit ovato-oblong, striated. 



1. C. Carui. p. 95. — Pastures a7id rocks. 



2G. PIMPINELLA. 



Pe/aZsinflexed. S/i^wc^subglobose. F/-;«7 ovato-oblong, striated. 



1. P. Siixifraga, radicalleaves pinnae, leaflets roundish sharply 

 serrate, thoseof the stem bipinnate linear. /;.95. — Dry pastures, 



27. APIUM. 

 Petals uniform. Fruit roundish, ribbed. 



