208 



CRUCIFER/E. LVII. SISYMBRIUM. 



leaves filiform, smooth ; flowers panicled ; siliques very long, 

 flexuous, slender, crowned by the thick stigma. O ? H. Na- 

 tive of? 



Multifid-leaveil Flix-weed or Hedge-Mustard. PL 2 feet. 



36 S. MYRIOPHY'LLUM (H. B. et Kth. in D. C. syst. 2. p. 477.) 

 leaves bipinnate ; segments blunt ; petals larger than the calyx ; 

 pods lanceolate. Native of Quito at the bottom of Mount 

 Cotopaxi among stones at the height of 4550 feet. Nastur- 

 tium myriophyllum, Spreng. syst. 2. p. 883. A very branching 

 plant. Flowers pedicelled. Seeds ovate, minute. 



Myriad-leaved Flix-weed or Hedge-Mustard. PL 2 or 3 feet. 



SECT. V. KIBE'RA (meaning unknown.) D. C. syst. 2. p. 477. 

 prod. 1. p. 194. Pedicels bracteate at the base. Style short, 

 thick, retuse. Flowers small, yellow or white, rarely purple. 



37 PERUVIA'NUM (D. C. syst. 2. p. 477.) pedicels axillary, 

 smooth, longer than the calyx ; pods hispid, spreading ; leaves 

 oblong, deeply-serrated. Native of Peru. An erect, herba- 

 ceous, branched plant. Bracteas violaceous, oblong-linear, 

 toothed, longer than the pedicels, but sometimes they are abor- 

 tive at the top of the raceme. Flowers small, probably yellow. 



Peruvian Hedge-Mustard. PL 1 to 2 feet. 



38 S. SUPI'NTTM (Lin. spec. 917.) pedicels axillary, very short, 

 solitary ; pods erect, puberulous ; leaves sinuately-pinnatifid ; 

 stems covered with reflexed pubescence. O- H. Native of 

 sandy humid places, and on the margins of fields along the banks 

 of the Seine about Paris, in Switzerland, also in Spain, &c. 

 A'rabis supina, Lam. fl. fr. 2. p. 512. Isnard in act. acad. paris, 

 1724. t. 18. Stems either decumbent or erect, simple or branch- 

 ed. Flowers small, white. 1 



Supine Hedge-Mustard. FLJu.Jul. Clt. 1788. Pl.ito-|ft. 



39 S. RUNCINA'TUM (Lag. fl.hisp. ined. D. C. syst. 2. p. 478.) 

 pedicels axillary, very short, solitary ; pods incurved, and are as 

 well as the stem smooth ; leaves oblong, runcinately-toothed. 

 . H. Native of Spain about Orcelis among rubbish. Stems 

 branched from the base, diffuse. Floral leaves sessile. Flowers 

 small, probably white. 



Runcinate -leaved Hedge-Mustard. Fl. June, July. PL ~ ft. 



40 S. HIUSU'TUM (Lag. from Dufr. in litt. D. C. syst. 2. p. 

 478.) pedicels axillary, very short, solitary ; bracteas oblong- 

 linear, almost entire ; pods erect, and are as well as stem pu- 

 bescent. .H. Native of Spain about Madrid. Flowers small. 



Hairy Hedge-Mustard. Fl. May, July. Clt. 1820. PL $ ft. 



41 S. POLYCERA'TIUM (Lin. spec. 3. p. 9 18.) pedicels in threes, 

 axillary, very short ; pods erect, smooth ; leaves sinuately- 

 runcinate; lobes acute, toothed, lower ones largest. . H. 

 Native throughout the south of Europe on humid walls and in 

 fissures of rocks. It also grows about Bury in Suffolk, but it 

 certainly has been introduced there. Jacq. vind. t. 79. S. cor- 

 niculatum, Lam. fl. fr. 2. p. 520. A fetid somewhat erect herb, 

 with small yellow flowers, which are sessile in the axillae of the 

 leaves. 



Many-podded Hedge-Mustard. Fl. June, July. Clt. 1633. 

 PL | to 1 foot. 



42 S. RI'GIDDM (Bieb. suppl. p. 439.) pedicels very short, 

 axillary or naked ; pods and erect stems hispid ; leaves smooth- 

 ish, oblong, acutely ruucinately-pectinate. O H. Native of the 

 south of Tauria. Ery'simum polyceratium, Pall. itin. 3. p. 741. 

 app. no. 103. t. Mm. f. 1. ed. gall. 8vo. app. p. 346. no. 351. 

 t. 107. Hesperis rigida, Steven from cat. hort. gor. 1808. p. 

 82. Bristles on stems long. Petals oblong-linear, white. 



Tfygid-bristled Hedge-Mustard. FL June, July. Clt. 1816. 

 PL to i foot. 



SECT. VI. ARABIDO'PSIS (from Arabis and oif-ic, opsis, resem- 

 blance ; plants resembling the genus A'rabis.) D. C. syst. 2. p. 



480. prod. 1. p. 195. Siliques linear, compressed. Stigma 

 sessile, truncate. Flowers white, on very short bractless pedicels. 



43 S. BURSIFO'LIUM (Lin. amcen. 4. p. 322.) leaves lyrately- 

 pinnatifid, smooth ; stem erect, leafy ; pedicels thick, shorter 

 than the calyx. 0. H. Native of Sicily. A'rabis bursifolia, 

 Lam. fl.fr. 2. p. 511. Dill. elth. 179. t. 148. f. 177. Hesperis 

 dentata, Lin. spec. 928. Flowers small, white. 



Shepherd's-pitrse-leaved Hedge-Mustard. Fl. June, July. Clt. 

 1733. PL | to | foot. 



44 S. PINNATI'FIDUM (D. C. fl. fr. 4. p. 667. syst. 2. p. 481.) 

 radical leaves lyrate, cauline ones pinnate-parted ; lobes linear, 

 entire, terminal one largest ; pedicels very slender, somewhat 

 shorter than the calyx. 7. H. Native of rocky and stony 

 pastures in the mountains of Europe, particularly in the Pyre- 

 nees, the mountains of Auvergne, France, Switzerland, and Pied- 

 mont. Cardamine runcinata, Pourr. act. tol. 3. p. 310. Sisym- 

 brium bursifolium, Gouan. ill. p. 42. Sisymbrium dentatum, 

 All. ped. no. 1001. t. 57. f. 3. A'rabis pinnatifkla, Lam. diet. 

 1. p. 221. ill. t. 563. f. 3. A'rabis dentata, Clairv. herb. val. 

 223. Root perennial, suffruticose, much divided at the neck. 



Pinnatifid-leavedi Hedge-Mustard. FL May, Aug. Clt. J820. 

 PL i to | foot. 



45 S. ERYSIMOI DBS (Desf. atl.2.p. 84. t. 158.) leaves lyrately- 

 pinnatifid, lobes unequally toothed, terminal one largest; pedicels 

 very short; pods rectangular spreading. Q. H. Native of 

 Tunis in sandy places near Kervan, and in "the island of Tene- 

 riffe. About the divisions of fields in dry places of Spain in 

 Murcia and Granada. S. rigidulum, Lag. gen. et spec. pi. p. 20. 

 A smooth herb with very small white flowers. 



Erysimum-like Hedge-Mustard. FL Jan. April. Clt. 1825. 

 PL 1 to 2 feet. 



46 S. RAMULO'SUM (Del. segypt. ill. 19.) lower leaves pinnate- 

 lobed ; lobes few, acute, entire, with the terminal one oblong ; 

 cauline leaves oblong-linear, almost entire ; pedicels longer than 

 the calyx. 0. H. Native of Egypt, near Minyet and Beny- 

 Soueyf. Flowers small, probably white. 



Branched Hedge-Mustard. Fl. June, July. PL foot. 



47 S. ? CINE REUM (Desf. atl. 2. p. 83. 1. 157.) leaves pubes- 

 cent, somewhat fleshy, pinnate-parted ; lobes linear-filiform, 

 entire; pedicels longer than the calyx. . H. Native of 

 Mauritania near Cafsa in sandy places. Petals pale violet, 

 twice the length of the calyx. Seeds small, but their structure 

 is unknown, and therefore the genus to which it should belong is 

 doubtful. Perhaps a species of Hesperis or A'rabis. 



Cinereous Hedge-Mustard. " FL in winter. PL to 1 foot. 



48 S. TORULOSUM (Desf. atl. 2. p. 84. t. 159.) leaves oblong ; 

 radical ones somewhat pinnatifid, cauline ones coarsely toothed ; 

 pedicels very short ; pods hispid, straight. . H. Native of 

 Tunis, in waste land near Sbiba, and in the island of Cyprus. 

 Smith fl. graec. t. 632. Stems 2 or 3. Flowers white. 



Torulose Hedge-Mustard. Fl. Apr. May. Clt. 1824. PL ft. 



49 S. CONTORTUPLICA'TUM (D. C. syst. 2. p. 483.) leaves ob- 

 long, radical ones pinnatifid, cauline ones t6othed or entire ; 

 pedicels length of calyx ; pods hispid, usually twisted. . H. 

 Native of the desert of Cumana, also about Kitzliar and Astra- 

 can, especially in sandy places. Cheiranthus contortuplicatus, 

 Steph. in Willd, spec. 3. p. 521. Hesperis contortuplicata, 

 Bieb. fl. taur. 2. p. 124. Flowers from white to purplish. 



Var, /3, rectisilifjuum (Fisch. in litt.) siliques straight, or 

 hardly curved. 



Twisted-folded-podded Hedge-Mustard. Fl. June, Aug. Clt. 

 1819. PL foot. 



50 S. SETO'SUM (Ledeb. ex Spreng. syst. 2. p. 902.) stem sim- 

 ple, erect, smooth above ; radical leaves lyrate, sharply-toothed, 

 hispid, cauline ones few, small, lanceolate, sessile. Q. H. Na- 

 tive of the north of Persia. Flowers probably white. 



