SISYMBRIUM. 



Knrope ; frequent in England, flowering copioufly in July 

 .iiid Auguft. In running dreams it grows to a great iize, 

 with long floating _/?<'mx, throwing out abundance of white 

 librous radicles, and bearing, under water, deeply peAinated 

 leaves. On the neighbouring banks it is found fmaller, 

 with broader, and merely ferrated, foliage. The primary 

 roots are perennial, long, perpendicular, not creeping. The 

 leaves which grow out of the water are more or lefs oblong, 

 jagged, clafping the item with their dilated bafc ; the radical 

 ones ftalked. Flovi^rs yellow, not very bright. Pods (hort 

 and fmall, often abortive. This feems to be the plant 

 which Chateaubriand obferved in Suffolk, and of which he 

 has given fo extravagant an account in his travels ; as if the 

 works of the Creator were not, of themfelves, fufficicntly 

 admirable, without bambait or exaggeration. 



S. tanacelifolitim. Tanfy-leaved Wild-rocket. Linn. 

 Sp.PI.916. Wilid.n.6. Ait. n. 12. (Eruca, n. 460 ; 

 Hall. Hilt. V. I. 200. E. tanaceti folio; Morif. fedt. 3. 

 t. 6. f. 19. E. fruticofo, con foglie di tanaceto, indiana ; 

 Zanon. Ift. 86. t. 33.) — Leaves pinnate; leaflets lanceo- 

 late, cut or deeply ferrated ; hoary beneath ; the ultimate 

 ones confluent. Pods eredt, lomewliat club-(haped. — Native 

 of thickets and groves, on the loftiell alps of Savoy and 

 Switzerland, but efteemed one of tiie rarell plants of thofe 

 countries. We gathered it in feed on mount Cenis, Augult 

 13, 1787. Miller is faid to have cultivated this 5'//3'm^r;H»! 

 in 1731, and we believe it is flill to be met with m curious 

 collections. The root is perennial. Stem two or thrvje feet 

 high, clothed with very handfome fpreading leaves, finely 

 downy and hoary beneath, and often befprinkled with mi- 

 nute Harry hairs on their upper furface. Flowers of a 

 golden yellow, numerous, in terminal corymbs, growing out 

 into long, lax clutters of fmooth, ereift, obtufe pods, half 

 an inch or more in length, tapering at their bafe ; their par- 

 tialjlalls about the fame length, alcending obliquely. 



S. tcnuifoliiim. Wall Wild-rocket. Linn. Sp. PI. 917. 

 Willd. n. 9 Fl. Brit. n. 5. Engl. Bot t. 525. (Braffica 

 muralis ; Hudf. 290. Curt. Loud. fafc. 3. t. 38. Sinapis 

 tenuifolia ; Br. in Ait. H. Kew. v. 4. 128. Sinapi eriicx 

 folio ; Bauh. Pin. 99. Tourn. Inil. 227. S. tertium ; 

 Matth. Valgr. v. i. 516. Eruca fylveltris ; Gei. Em. 246.) 

 - — Pods ereft, fomewhat beaked. Leaves fmooth, pinnatilid 

 orbipinnatihd, nearly entire ; the uppermolt undivided. — Na- 

 tive of old walls and rubbifli, in England, Germany, Switzer- 

 land, and France, as well as about Conftantinopk-, flower- 

 ing from July to October. The root is perennial. Plant 

 bufliy, fmooth, fomewhat glaucous, ifafw acute, varioufly 

 fimiatcd and pinnatifid ; their fegments lanceolate. Floiuers 

 large, lemon-coloured, fl.rongly fcented. Pods diltant, 

 tipped with the flightly elongated Jlyle. 



S.fagitlatum. Arrow-leaved Wild-rocket. Willd. n. 10. 

 (S. moUe ; Jacq. Coll. v. i. 68. Ic. Rar. t. 122. Naf- 

 turtium fagittatum ; Br. in Ait. H. Kew. v. 4. III.) — 

 Downy. Leaves oblong, with fliallow teeth ; the radical 

 ones haltate ; the rell clafping the item with their arrow- 

 (haped bafe. — Native of Siberia. Sent to Kew, by Pallas, 

 in 1780. Tiie root is fpindle-fliaped, perennial. Whole 

 plant clothed with luft, dt-prelled, fomewhat ftellated down. 

 Leaves bluntifli, bearing fome refemblance to thofe of Slap- 

 herd's Purfe. Floiuers yellow, fucceeded by long cluflers of 

 drooping downy pods. 

 . Seft. 2. Pods often axillary, nearly feffile. Five fpecies. 



S. polyceralium. Dandelion-leaved Wild-rocket. Linn. 

 Sp. PI. 918. Willd. n. 13. Ait. n. II. Prodr. Fl. 

 Graec. n. 1535. Jacq. Hort. Vind. v. 1.34.1.79. (Irio 

 alter; Matth. Valgr. v. 1.524. Erylimum alterum itali- 

 cum ; Ger. Emac. 254.) — Pods axillary, aggregate, awl- 



fliaped, nearly feffile. Leaves wavy or toothed Native of 



Switzerland, Fiance, Italy, and Greece. Dr. Sibthorp 

 found it, very common, throughout the laft-mentioned 

 country and the illands of the Archipelago, in wafte ground, 

 court-yards, and about villages, as Diofcondes reports of 

 his (^vTtfj.m, which therefore the Oxford profeflbr judged this 

 plant to be ; perhaps rightly ; but the defcription of the 

 Greek author, particularly the yellow flowers, and the termi- 

 nal pods, anfwer better to our Eryfimum ojicinale (Sijym- 

 brium nfficinale, Br. in Ait, H. Kew. n. I.), which is aWo a 

 Greek plant. The prcfent Sifymbrium, a mean and ill. 

 looking weed, is perfectly naturalized about Bury, in Suf- 

 folk, and might be taken for a native Britifh plant, had we 

 not the authority of fir T. G. CuUum, for its having 

 efcaped, many years fince, from the botanic garden of the 

 Rev. Mr. Laurence of that town. The roc/ is annual. Stems 

 branched, decumbent, leafy, fmooth, gradually elongated 

 after flowering. Leaves ahowt an inch long, on fliort ftalks, 

 fimple, fomewhat haflate, flightly toothed or wavy, fmooth. 

 Floivirs fmall, white, axillary, on fhort flalks, two or 

 three together. Pods rather curved, an inch long, uneven, 

 fmooth, with a zig-zag furrow along each flde. 



S. torulofum. Rough-pddded Wild-rocket. Desfont, 

 Atlant. V. 2. 84. t. 159. Willd. n. 16. Sm. Fl. Gra:c. 

 Sibth. t. 632, unpublifhed. — Pods racemofe, feflile, awl- 

 Ihaped, hairy. Stem diflufe. Leaves lanceolate, toothed. 

 — Native of uncultivated fields, in Tunis, and the ifle of 

 Cyprus. An annual, branched, nearly proftrate herb, very 

 like the laft in general appearance, but the leaves are longer, 

 truly lanceolate, and regularly toothed. Floiuers terminal, 

 denfely corymbofe, white, their ftalk lengthening out into 

 a long clii/ler, or rather Jpiie, oi crowded, feffile, fpreading, 

 rugged, hairy peiis, each about an inch in length. 



Seft. 3. Stem for the moft part naked. Eight fpecies. 



S. murale. Sand Wild-rocket. Linn. Sp. PI. 918. 

 Willd. n. 17. Dickf. Dr. PI. 12. Engl. Bot. t. 1090. 

 Fl. Brit. 1401. (Eruca viminea, iberidis folio, luteo flore ; 

 Barrel. Ic. t. 131. Sinapis muralis ; Br. in Ait. H. Kew. 

 V. 4. 128.) — Pods ereft. Stem fpreading, fhort, roughifh. 

 Leaves lanceolate, deeply ferrated. — Native of France, 

 Italy, and the ifle of Thanet, in wafte fandy ground, 

 flowering in autumn. /?5o/ truly annual. 5/fOT.f branching, 

 diflufe, often very fliort, leafy, round, more or lefs rough 

 with deflexed hairs. Leaves of a grafs green, tapering at 

 the bafe into long footftalks ; their margin deeply and irre- 

 gularly ferrated. Floiuers fmaller than thole of S. tenmfo- 

 lium, their corymbs becoming long loofe clujlers of ereft, cy- 

 lindrical, fmooth pods, on fpreading, hairy ftalks. S. Eru- 

 caflrum, Gouan llluflr. t. 20, is precifely this plant, not a 

 variety. 



S. monenfe. Dwarf Sea Wild-rocket. Lmn. Sp. PI. 

 ed. I. 658. Fl. Brit. n. 6. Engl. Bot. t. 962. Willd. 

 n. 18. Lightf. Scot. 353. t. 15. f. I. (Braflica monenfis ; 

 Hudf. 291. Br. in Ait. H. Kew. v. 4. 124. Eruca mo- 

 nenfis laciniata, flore luteo majore ; Dill. Elth. 135. t. I 11. 

 f. 135.) — Pods nearly ered, quadrangular, with a long 

 beak. Leaves pinnatifid, flightly hairy. Stems fimple, al- 

 mofl naked, fmooth. — Native of the fandy fliores of Bute, 

 Arraii, and the weft of Scotland, as well as of Cumber- 

 land, and the iflos it Walney, Anglefea, and Man. Root 

 thick, woody, and perennial. Stems feveral, a fpan high, 

 leafy at the bottom only. Leaves almofl all radical, nu- 

 merous, flalked, rather fleflly and glaucous ; their fegment* 

 deep, tolerably uniform, either entire, or with broad inci- 

 lions. Floiuers large, numerous, lemoii-colonrcd, corym- 

 bofe, fucceeded by a long cluflcr of Imooth, obfcurely 

 quadrangular, upright, flalked, long-beaked pods. Calyx 



Icfs 



