SIUM. nUPLEURUM. 
139 
natifid with linear segments, st. terete, ])C(1. gliibrons. — E. B. 407. 
— St. I — 2 feet liigli, naked above. Styles shorter than the 
ovary. L. sometimes all ])iimatifid. — [P. nigra (Wilhl.) Koch 
has “ densely pubescent peduueles.”] — Dry pastures. P. VII. — 
IX. 
1.'). SiUM Linn. 
* Stylopode depressed. Carp, with the lateral ridges margi- 
nal. Interstices with 3 .superficially placed vittce. Albu- 
men very convex, fiattened on the inner side. Sium Koch. 
1. S. latifolium (L.); root stoloniferous fibrous, 1. pinnate, 
leaflets oblong-lanceolate equally serrate pointed, involucres of 
many lanceolate leaves. — E. B. 204. — Ridges of the carp, obtuse 
rounded. St. 3 — 5 feet high, angular, furrowed. Leaflets very 
large, distant, 4 | — 65 pairs on a leaf.— Ditches and rivers, rare. 
P. VII. VIII. 
** Stylopode shortly conical. Carp, with the lateral ridges not 
marginal. Interstices with 3 or more deeply seated vittce. 
Albumen terete. Berula Koch. 
2. S. angustifiolium (L.); root stoloniferous, 1. pinnate, /ea/Iefs 
unequally lobed and cut ovate, of the stem 1 . lanceolate, inv. of 
many lanceolate entire or cut leaves.— i?. B. 139. — Ridges of the 
carp, but slightly prominent. St. 1 — 3 feet high, round, striated. 
Leafi. often very deeply cut and lobed. — Ditches. P. VIII. 
16. Bupleurum Linn. 
* Fruit granulated, 
1. B. tenuissimum (L.); st. branched, 1. linear acute, umbels 
lateral and terminal minute, partial umbels of 3 — 5 flowers usu- 
ally overtopped by their involucres, carp, granulated between tbe 
5 ridges. — E. B. 478.- — St. very slender, wiry, 6 — 12 in. long. — 
Muddy salt marshes. A. VIll. IX. E. 
** Fruit not granulated. 
2. B. arisfafttm (Bartl.) ; st. branched, 1. linear-lanceolate acu- 
minate 3-nerved, 1. of the partial involucres elliptic-lanceolate 
cusj)idate somewhat awned with branching nerves, pedicels short 
equal. — B. Odontites Sm., E. B. 2468. not Linn. — St. 1 — 6 in. 
high. — Torquay, Devon. Channel Islands. A. VII. E. 
3. B. falcatum (L.) ; st. branched, 1. 5 — 7-nerved, lower 1. 
elliptical-oblong on long stalks, upper 1. linear-lanceolate acute 
sessile, j)artial involucre of 5 lanceolate pointed 1. as long as the 
flowers. — E. B. S. 2763. — Pedicels as long as the fruit. St. 1 — 4 
feet high. — Near Ongar, Essex. P. VIII. E. 
4. B.rotundifolium{Ij.) ; st. hranched above, 1. oval perfoliate. 
