CEXANTHE. 
147 
Tribe V. Seselinece. 
17. CENAJf THE Linn. Water-Dropwort. 
* Moot fascicled, fibres more or less thichened or tuberous. 
1. (E.fistuUsa (L.) ; stoloniferous, st. and petioles hoUmv, root-1. 
2 — 3-piuuate with 3-fid leaflets, stcm-l. simply pirmate shortei- 
than their petioles, leaflets linear, fr. angular tiu-binate. — U. B. 
303.— St. 1 — 3 feet liigii, remarkably hollow. Stem-1. distant, 
with vei-y long- stalks. Stoles -n-ith simply pinnate leaves. Um- 
bels small, globose in fruit ; general in\ olucre 0. Fniit tipped 
with the long slightly diverging rigid styles.— By ponds and 
ditches. P. IX. E. I. 
2. CE. pimpinelloides (L. ) ; root of long fibres bearing round 
or oval knobs beyond their middle, root-1. bipinnate with ob- 
ovate-wedgeshaped 3-lobed Its., st.-l. pinnate wdth linear acute 
Its., uppermost 1. simple, radiant pet. obcordate divided to the 
middle, sub(?5i lindrical ivith an enlarged corky base. — Jucq. 
Aiist. t. 394. — St. i — 3 ft. high, alternately branched. General 
inv. 0 — 6-leaved ; partial of many 1., about as long as the barren 
fl. Partial umbels close together forming one coynpact fiat-topped 
compound umbel. Fr. nearly cylindrical ; cal. erect-patent. — 
Southern counties. P. VI. VII. E. 
3. Qi.Lachendlii (Gmel.) ; root of long subclavate fleshy fibres 
taperiug at both ends, root-\. bipinnate with oblong entire or 
icedgeshaped and bluntly 2 — 3-lobed /fe., lower s;. -1. 2 — 3-pinnate 
with linear acute Its., upper 1. simply pinnate, radiant pet. di- 
vided to the middle, /■/•. oblong narrowed below. — CE. jrimpinel- 
Imdes Sm., E. B. 347. — St. 1—3 feet high, slightly branched. 
General inv. of many leaves, sometimes wanting ; partial of 
many leaves, shorter than the barren flowers. Outer fl. on long 
.stalks, mostly barren ; inner fl. fertile, nearly sessile. Padiant 
pet. ronndish-obcordate with a short narrow claw. Partial um- 
bels distinct, spJierieal. Fr. crowned with the inflexed calyx. 
Root-leaves soon vanishing. — Marshes. P. VII. — IX. E. S. I. 
4. CE. sil/tifolia (Bieb. ?) ; root of elliptic-oblong knobs, ra- 
dical 1. bipinnate, st.-l. pinnate, Us. all linear acute, external fi-. 
nearly cylindrical with a corky base. — E. B. 348. — St. 2 — 3 fet t 
high, branched. Outer fl. stalked, mostly barren ; cal. very 
unequal ; radiant pet. small, obcordate with an attenuate base, 
notch \ their length. Fr. usually slightly nan'owed downwards, 
in the middle of the umlj^el much narrowed and appearing to want 
the corky base ; cal. erect or inflexed. General involucre 0 ; 
Eartial of many leaves shorter than the flowers. Distinguished 
'om the preceding by its pet., uniform leaflets, want of a general 
ktvolucre, and fruit. — Scarcely CE. silaifolia (Bieb.), not CE.peu- 
cedanifolia (PoU.). — In freshwater marshes. P. VI. E. 
H 2 
