S I S Y M 
Flowers white, in a corymb, soon lengthened out into a 
spike. Pods shortish, on horizontal pedicels, but the pods 
themselves recurved upwards. Stigmas nearly sessile.— 
Native of Europe, Asia, Africa and America, in springs, 
pools and rivulets: flowering in June and July. 
2. Sisymbrium sylvestre, or creeping water rocket.— 
Leaves pinnate; leaflets lanceolate, gash-serrate. Root 
perennial. Stems numerous, a foot high. Corolla small, 
yellow or gold-coloured; petals obtuse, a little longer than 
the calyx. Nectary of four deep-green glands, united in a 
circle. Filaments yellow: anthers incumbent.—Native of 
Sweden, Britain, Germany, France, Switzerland, Carnioia, 
Piedmont and Siberia. 
3. Sisymbrium terrestre, or annual water rocket.—-Leaves 
pinnatifid, unequally toothed; root simple; petals shorter 
than the calyx.—Common in England. 
4. Sisymbrium amphibium, or great water rocket.-—Leaves 
oblong, pinnatifid or serrate; petals longer than the calyx. 
—Root perennial, fibrous. Stems elongated, rooting, some¬ 
what flexuose, leafy, grooved, little branched.—In rivers and 
brooks, and sometimes on the banks that are seldom over¬ 
flowed, in most parts of Europe: flowering from Jone to 
August.—The remaining species of this section are Sisym¬ 
brium Pyrenaicum, tanacetifolium, ceratophyllum, corono- 
pifolium, tenuifolium, sagittatum and amplexicaule. 
II.—Siliques sessile, axillary. 
5. Sisymbrium supinum, or decumbent wild rocket.-— 
Siliques solitary; leaves tooth-sinuate.—This is an annual 
plant.—Native of the South of Europe: flowering in June 
and July. 
6. Sisymbrium polyceratium, or dandelion-leaved wild 
rocket.—Siliques awl-shaped; aggregate; leaves repand- 
toothed. It is an annual.—Native of the South of France, 
Italy, and Switzerland. 
7. Sisymbrium filifolium, or thread-leaved wild rocket.— 
Leaves linear. This is a very small annual, not more than 
an inch and a half or two inches in height. Flowers small. 
Petals white, linear, obtuse, a little longer than the calyx.— 
Native of Siberia, by the river Kuma. 
8. Sisymbrium bursifolium, or shepherd’s purse-leaved 
wild rocket.—-Raceme flexuose; leaves lyrate; stem erect, 
leafy. Annual.—Native of Italy, in moist places on 
mountains. 
9. Sisymbrium torulosum, or swoln-podded wild rocket— 
Raceme erect; siliques sessile, pubescent; leaves lanceolate, 
toothed. There are often some racemes of flowers from the 
root. It flowers early in spring.—Native of the kingdom 
of Tunis, in fallows. 
III.—Stem naked. 
10. Sisymbrium murale, or wall wild rocket.—-Almost 
stemless; leaves lanceolate; sinuate-serrate; snaoothish ; 
scapes, somewhat rugged, ascending.—Native of France, 
Italy and England. 
11. Sisymbrium monense, or procumbent sea rocket.— 
Siliques almost upright; leaves pinnatifid, somewhat hairy ; 
stems quite simple, almost naked, smooth. Root perennial 
and strong.—Native of Britain. 
12. Sisymbrium repandum, or sinuate-leaved sea rocket. 
—Stemless; leaves oblong, repand-sinuate, smooth; scapes 
smooth; siliques compressed-four-cornered.—Native of 
Provence, Dauphine and Piedmont.—There remains in this ' 
section Sisymbrium tillieri, vimineum, barrelieri, arenosum 
and valentinum. 
IV.—Leaves pinnate. 
13. Sisymbrium parra, or Brasil wild rocket.—Root 
annual or biennial. Leaves radical, spreading in a ring, a 
span long, runcinate. The upper surface* especially the 
. edge, muricated with warts, or scattered mucronafe tubercles, 
having a transparent point.—Native of Brasil. 
14. Sisymbrium asperum, or rough-podded wild rocket.— 
Siliques rugged; leaves pinnatifid ; pinnas linear-lanceolate, 
Vol. XXIII. No. 1568. 
B R I U M. 253 
somewhat toothed; corollas longer than the calyx.—-Root 
annual. Stems half a foot long and almost trailing.—Native 
of the South of France and marshes about Estremadura. 
15. Sisymbrium Sophia, or flix-weed.—Leaves pinnate- 
decompounded, somewhat hairy; petal smaller than the 
calyx. Root annual, small, tapering. Stem a foot and a 
half or two feet high, upright, round, much branched and 
very leafy. Leaves alternate, spreading, three inches long 
and two inches broad, very finely divided. Flowers in 
corymbs, very small, numerous, frequently more than a 
hundred in a single corymb. Petals pale yellow.—It is 
common in most parts of Europe, on walls, among 
rubbish, about church-yards, waste ground, hedges and 
dunghills: flowering in June and July.—The remaining 
species of this section, are Sisymbrium laevigatum, millefo¬ 
lium, album, cinereum, altissimum, echartsbergense, pan- 
nonicum, erysimoides, irio, columnae, loeselii, obtusangulum, 
orientale, barbarese, lyratum, catholicum, heterophyllum 
and glaciale. 
V.—Leaves lanceolate, entire. 
16. Sisymbrium strictissimum, or spear-leaved wild 
rocket.—Leaves oblong-lanceolate, toothed pubescent; 
petioled; siliques spreading. Root perennial.—Native of 
Germany, Austria, Switzerland and Italy. 
17. Sisymbrium pendulum, or pendulous wild rocket.— 
Leaves lanceolate, gash-toothed, hispid; siliques pendulous. 
Stem somewhat branched, upright. Flowers yellow.— 
Native of Barbary, near Cassa, in sands. 
18. Sisymbrium Hispanicum, or Spanish wild rocket.— 
Leaves lanceolate, toothed, sessile, smooth ; siliques pressed 
close; stem branched, divaricating. Root biennial.—Native 
of Spain. 
19. Sisymbrium pumilum, or dwarf wild rocket.—Leaves 
lanceolate, toothed, sagittate embracing, pubescent; siliques 
from erect spreading. Root annual. Plant a finger or a 
span in length.—Native of the northern parts of Persia. 
20. Sisymbrium salsuginosum, or salt wild rocket.— 
Leaves lanceolate, quite entire, cordate, embracing smooth; 
siliques spreading. Root annual.—Native of salt-marshes in 
Siberia. 
21. Sisymbrium integrifolium, or entire-leaved wild 
rocket.—Leaves linear, quite entire; peduncles glutinous- 
hispid. Root annual. Stem a finger’s length. Flowers 
biggish, white. Siliques linear.—Native of Siberia. It 
varies, according to Grnelin, with yellow flowers. 
22. Sisymbrium Indicum, or Indian wild rocket.—Leaves 
lanceolate-ovate, serrate petioled even; siliques slightly 
bowed. Root annual.—Native of the East Indies. 
23. Sisymbrium hispidum, or hairy wild rocket.-— 
Caulescent; leaves petioled, oblong, toothed hispid; stem 
also hispid.—Native of Egypt. 
Propagation and Culture .—Water Cress is generally 
gathered for a spring salad in ditches or other standing or 
slow-flowing waters; and is also cultivated to supply the 
London markets. This may be easily done, by taking some 
of the plants from the places of their natural growth early 
in the spring, being careful to preserve their roots as entire 
as possible, and plant them in mud, letting water in upon 
them by degrees. They will soon flourish, and spread over 
a large compass; they should not be cut the first season, but 
suffered to run to seed; for the. seeds will fall into the 
water, and furnish a sufficient supply of plants. 
Where the water is so deep that it is not easy to plant it, 
procure a quantity of plants in July, just as their seeds are 
ripening, and throw them on the surface of the water, 
where they are designed to grow: the seeds will ripen, 
fall to the bottom and take root there without any farther 
care. 
The other water-rockets may be propagated in the same 
manner, or by seeds sown on the banks of ditches or 
streams. 
Those which grow on dry land may easily be propagated, 
by sowing the seeds in autumn, or by permitting them to 
3 T scatter; 
