EETUeiUM. APIXTM. 151 



Tribe III. Eryngiea. 

 4l. EETK'eiTjM Linn. Eryngo. 



1. E. marit'itmim (L.) ; radical I. rotmdish plaited spinous 

 stalked, upper 1. amplexicaul pahnately lobed, inv.-l. 3-lobed 

 spinous exceeding tlie heads, scales of the receptacle S-lobed. — 

 JE. B. 715. — St. I foot or more in height, much branched, leafy, 

 rigid, glaucous. Fl. in heads rather than umbels, blue. — Sandy 

 sea-shores. P. VD. VIH. SeonHoUy. E. S. I. 



2. E. campes'tre (L.) ; radical l.2orS times pirmatifld spinous 

 stalked, st.-l. amplexicaul pinnatifid, inv.-l. lanceolate spinous 

 longer than the heads, scales of the receptacle undivided. — 

 E. B. 5". — More bushy and slender than the last. Pet. purplish 

 or white. Petioles thick, semiterete, channelled. — On waste 

 ground, very rare. P. "VII. Vin. E. 



Tribe IV. Amminea. 



5, Cictj'ta Linn. Water-Hemlock. 



1. C. vii-6sa'(L.) ; fibres of the root filiform, 1. tripartite, leaf- 

 lets Itnear-lanceolate acute serrate decurrent. — E. B. 479. — St. 

 3 — 4 feet high, very thick terete and hoUow below. Lower 1. on 

 long stalks ; leafiets 1 — 2 in. long. Umbels large ; general inv. 

 or of 1 or 2 slender leafiets, partial of many subulate leaflets. 

 Fl. white. Herb poisonous. — Ponds and ditches, not common. 

 P. Vn. Vin. Cowbane. E. S. I. 



6. A'piTTM Linn. Celery. SmaUage. 



* Pet. with involute point, cordate base, minute claw. Partial 

 inv. 0. 



1. A. ffravSohns (L.) ; glabrous, 1. pinnate or temate, leaflets 

 of the upper 1. wedgeshaped. — E. B. 1210. — St. 1 — 2 feet high, 

 branched, furrowed, leaiy. Umbels terminal or lateral, fre- 

 quently almost sessile, accompanied by one or two temate leaves. 

 Fl. small, whitish. — Marshes and ditches, especially near the 

 sea. P. VI.— Vm. E. S. I. 



**- Pet. mth obliqtte actde point, and wedgeshaped base. PaHiul 

 inv. present. — ^Helosciadium Koch. 



2. A. nodifidrum (R.) ; st. procumbent at the base and root- 

 ing, 1. pinnate, leaflets ovate or ovate-lanceolate unec[ually 

 bluntly seirate, umbels opposite to the L longer than their pe- 



