Old. 2.] PENTANDItIA DIGYNIA. 63 



Fens and ditches. If. 7, 8. R. tuberous. Lower umb. of 3 gen. rays. 



2. CE. pimpineltoides, 5. 347. (Parsley W.) Radical leaflets wedge- 



shaped, cloven ; the rest entire, flat, linear, elongated. General 

 bracteas linear, numerous. 

 Salt marshes. If. 7. Tubercles of the root tapering. Umb. of many 

 rays. 



3. CE. peucedanifolia, 5. 348. (Sulphur-wort W.) Leaflets all linear. 



General bracteas none. Knobs of the root sessile, elliptical. 

 Ditches and bogs, rare. If. 6. Stem thick and Jinn. Cat. erect. 

 Fruit large. 



4. CE. croedta, 33. 2313. (Hemlock W.) Leaflets all wedge-shaped, 



many-cleft, nearly uniform. Fruit linear-oblong, with slender 

 intermediate ribs. 

 Watery pi. If. 7. Juice fetid, orange-col. Ccd. generally incurv. 



5. CE. Phellandrium, Phell. aquat. 10. 684. (Fine-leaved W.) Leaf- 



lets all uniform, with narrow, wedge-shaped, cut, spreading 

 segments. Fruit ovate, with five broad ribs, and narrow inter- 

 mediate furrows. 

 Riv. and pools. $ . 6, 7. Stem bushy, stout, and hollow. 



154. CRlTHMUM. Samphire. 



1. C. maritimum, 12. 819. (Sea S.) Leaflets lanceolate, fleshy. 

 Bracteas ovate. 

 Mark, cliffs. 11. 8. R. branched, creeping. L. 3-tem. Fl. yellowish. 



155. SMYRNIUM. Alexanders. 

 1. S. Olusdtrum, 4. 230. (Common A.) Stem-leaves ternate, stalked, 

 serrated. 

 Waste gr. and near the sea. $.5. Smooth and shining. Fl. green. 

 Fr. black. 



156. 1PIUM. Parsley. 

 1. A. graveolens, 17. 1210. (Smallage P. Wild Celery.) Stem-leaf- 

 lets wedge-shaped. Stem furrowed. Partial bracteas none. 

 Pools and ditches. $ . 7, 8. Shining, bright green, acrid. Umb. 

 nearly sessile. 

 *2. A. Petroselinum, Petroselinum sativum, Suppl. 2793. (Com- 

 mon Parsley.) Leaves decompound, shining ; lower leaflets 

 ovate-cuneate ; upper ones linear-lanceolate, nearly entire. 

 Partial bracteas filiform. 

 Old walls, in the South ; naturalized. $ . 6, 7. 



157- iEGOPoDIUM. Gout-weed. 



1. M. Podagrdria, 14. 940. (Common G.) 



Cult. gr. and moist shady pi. If . 5, 6. R. creeping. Leaf,, ovate. 



158. IMPERAToRIA. Masterwort. 



1. I. OstrCithium, 20. 1380. (Great M.) Leaves twice ternate, undi- 

 vided, or three-lobed, rough-edged. Flower-stalks alternate. 



