UMBELLIFF.It.'E. 
127 
6. Apium Linn. 
1. A. graveohns (L.) ; glabrous, 1. pinnate or ternate, leaflets 
of the upper 1. wcdgeshaped and notched at the end. — K. B. 
1210. — St. 1 — 2 feet high, branched, furrowed, leafy. Umbels 
terminal or lateral, frequently almost sessile, accompanied by 1 
or 2 ternate leaves. Fl. small, white. — Marshes and ditches, 
especially near the sea. B. VI. — VIII. Celery. 
7. Petroselinum Hoffm. 
fl. P. sativum (Hoffm.) ; I. fripiimate shining, leaflets of the 
lower 1. ovate-cuneate trifid and toothed, of the upper 1. ternate 
and entire. — E. B. S. 2793. — Partial involucres filiform. L. 
greenish. — Rocks and old walls. B. VI. — VIII. Parsley. 
2. P. segetum (Koch); lower I. pinnate : leaflets nearly ses- 
sile ovate lobed and serrate, upper 1. entire or trifid. — E. B. 228. 
— Umbels very irregular. General involucre of 1 — 2 leaves. Fl. 
whitish. St. erect, roundish, nearly leafless above, 1 — Is foot 
high. — Damp fields on a calcareous soil. B. VIII. IX. 
8. Trinia Hoffm. 
1. T. vulgaris (DC.) ; glabrous, involucres wanting or of 1 
leaf, ridges of the fr. obtuse. — E. B. 1209. — L. trip innate, glau- 
cous-green ; leaflets linear or filiform. Root crowned with the 
remnants of former leaves. St. branched, erect, 6 — 8 in. high. 
Plants usually dioecious. — Dry limestone hills, rare. P. V. 
VI. E. 
9. Helosciadium Koch. 
1. H. nodiflorum (Koch) ; st. procumbent at the base and 
rooting, 1. pinnate, leaflets ovate or ovate-lanceolate unequally 
obtusely serrate, umbels opposite to the 1. longer than their pe- 
duncles or nearly sessile. — E. B. 639. — St. 1 — 2 feet long. — 
Banks of ditches and brooks. P. VIII. 
2. H. re-pens (Koch) ; st. prostrate creeping, 1. pinnate, leaflets 
roundish-ovate unequally and acutely inciso-serrate, umbels shorter 
than the peduncles. — E. B. 1431. — Scarcely more than a variety 
of the preceding. St. quite prostrate. — Boggy meadows, rare. 
P. VII. VIII. 
3. H. inundatum (Koch) ; st. creeping, 1. pinnate, leaflets of 
the lower I. divided into capillary segments, of the upper 1. wedge- 
shaped and trifid, umbels generally with 2 rays. — E. B. 227- 
— Usually wholly submersed except a few of the upper 1. and the 
fl. which rise above the water. Partial umbels very small. — 
Ponds. P. VI. VII. 
