CRUCIFER^E. II. CHEIRANTHUS. III. NASTURTIUM. 



155 



Teneriffe. Hesperis cinerea, Poir. suppl. 3. p. 196. Very like 

 Ch. mutdbilis, but evidently distinct. 



Var. a, purpurdscens (D. C. syst. 2. p. 184.) flowers at first 

 white, then purplish. Tj . F. 



Far. j3, eeruginosus (D. C. 1. c.) flowers at first rust-coloured, 

 afterwards paler, and suffused with red. 



Var. y, chamte'leo (D. C. 1. c.) flowers at first orange, after- 

 wards purple. Ch. cheiri, var. Chamae'leon, Ker. hot. reg. t. 

 219. These are very ornamental plants. 



Broom Wall-flower. Fl. May, Oct. Clt. 1812. Sh. 2 to 3 ft. 



10 C. SEMPERFLORENS (Schousb. moroc. ed. germ. p. 181.) 

 leaves linear-lanceolate, quite entire, roughish ; stem shrubby, 

 branched ; siliques compressed ; pedicels one-half shorter than 

 the calyx. t? . F. Native of the kingdom of Morocco and 

 about Mogodor. Flowers yellow or white. 



Ever-fiunermg Wall-flower. Fl. Jan. Dec. Clt. 1815. Sh. 1 

 or 2 ft. 



11C. LINEA'RIS (Vent. malm. p. 83. not of Tlmnb.) leaves 

 linear, quite entire, smoothish ; stem shrubby, branched; siliques 

 compressed, tapering to both ends. fy . F. Native of Tene- 

 riffe. Ch. frutescens, Pers. ench. 2. p. 201. Very like Ch. 

 semperflorens, but the plant is more shrubby and the leaves are 

 shorter and narrower. Flowers white, never yellow. 



Z-iaear-leaved Wall-flower. Fl. Mar. Jul. Clt. 1815. Shrub 

 1 or 2 feet. 



12 C. LINIFOLIUS (Pers. ench. 2. p. 201.) leaves linear, quite 

 entire, scabrous, crowded ; stem shrubby, branched ; siliques some- 

 what cylindrical, three times longer than the calyx ; pedicels one 

 half shorter than the calyx. Ij . F. Native of Spain, Hesperis sem- 

 perflorens, var. /3, Poir. suppl. 3. p. 1 9(>. Hesperis linifolius, Desf. 

 cat. liort. par. ed. 1. p. 129. Very like Ch. semperflorens, but 

 easily distinguished from it by the young leaves being crowded 

 into the axillae of the old ones, as well as by the flowers being pur- 

 plish, not yellow nor white. 



Flax-leaved Wall-flower. Fl. March, Aug. Clt. 1815. Shrub 

 1 to 2 feet. 



t Species not sufficiently known. 



13 C.? SYRI'ACUS (D. C. syst. 2. p. 185.) leaves ovate-oblong, 

 eordately-auriculate, toothed, smooth ; stem erect, flexuous, 

 branched, smooth. $ . H. Native of Syria. Hesperis Syri- 

 acus, Rauw. or. p. 74. with a figure. Cam. hort. med. p. 74. 

 t. 19. Mor. oxon. 2. p. 252. sect. 3. t. 10. f. 4. &c. Flowers 

 not seen. 



Syrian Wall-flower. PI. 2 feet. 



14 C. ? PULCHE'LLUS (Willd. spec. 3. p. 523.) leaves linear- 

 lanceolate, acutely toothed, rather pubescent with 2-parted hairs. 

 J . H. Native of Cappadocia. A small plant with a shrubby 

 base. Petals obovate yellow, size of those of Erysimum Helve- 

 ticum. Seeds unknown. 



Pretty Wall-flower. Fl. ? PI. i foot. 



15 C. ? SALINUS (Lin. mant. 93.) leaves lanceolate, blunt, 

 quite entire, downy ; stem erect ; anthers inclosed. Tj . H. 

 Native of Siberia and Tartary near salt pits. ? Hesperis salina. 

 Lam. diet. 3. p. 324. Very like Malhlola incana, but 8-times 

 smaller. Flowers purple with a yellowish throat, sweet-scented. 



Salt-pit Wall-flower. PI. \ foot. 



16 C. PALLA^SII (Pursh. fl. amer. sept. 2. p. 436.) leaves 

 lanceolate-linear, attenuated, repand-toothed, smoothish ; stem 

 simple, erect, round. $ . H. Native of North America, on the 

 North-West coast. C. denticulatus, Willd. herb. Stem pubes- 

 cent with small 2-parted- hairs. Flowers nearly like those of 

 Mathlola incana, but dark-purple. Siliques somewhat cylindri- 

 cal, crowned by the small subcapitate stigma. 



Pallas' s Wall-flower. Fl. Jul. PI. \ foot. 



17 C. pyoM^E us (Adams, in. mem. soc. mosc. 5. p. 114.) 



leaves linear-lanceolate, quite entire, rather hispid ; stein simple, 

 ascending ; racemes corymbose ; siliques very long, somewhat 4- 

 sided ; stigma 2-lobed. I/ . H. Native of Siberia, at Cape By- 

 kofskoy on the sea shore. Like Ch. alplnus, but differing from 

 it in the leaves being linear-lanceolate, and rather hispid, as well 

 as in the flowers being small violet, not sulphur-coloured. Per- 

 haps a species of Erysimum. 



Pygmy Wall-flower. Fl. Jul. PI. foot. 



18 C. FLEXUOSUS (Smith, fl. graec. t. 634.) Q. H. Native 

 of the island of Cyprus. Leaves obovate roundish. Stem diffuse, 

 flexuous ; siliques spreading, stiff, pungent. 



Flexuoits-stemmed Wall-flower. PI. % foot. 



19 C. ODORA'TUS (Pall. ex. Spreng. syst. 2. p. 896.) stem sim- 

 ple, erect, smooth ; leaves white with dense tomentum, radical 

 ones pinnatifidly-serrated, stalked, cauline ones oblong, sessile, 

 with cartilaginous teeth ; flowers in racemose-spikes : calyx 

 smcoth. Tf.. H. Native of the North of Persia. 



Sweet-scented Wall-flower. PI. 3 foot. 



Cull. The hardy shrubby species, such as fine varieties of com- 

 mon Wall-flower, should be encreased by young cuttings, which 

 will soon strike root ; if planted under a hand glass. The green- 

 house or frame kinds will thrive well in a light rich soil ; and 

 young cuttings planted in the same kind of soil, will strike most 

 freely under a hand glass. The perennial or herbaceous species 

 may be increased by dividing the plants at the root, by young 

 cuttings planted under a hand glass, or by seeds. The biennial 

 and annual species, only require to be sown in the open border ; 

 some of the tenderer sorts, or those natives of warmer climates, 

 may be sown in a gentle hot bed in the month of March, and 

 transplanted into the open borders about the middle or end of 

 April. The whole of the species answer well to be planted or 

 sown on rock-work, and even the tenderer species will survive 

 the winter in such a situation. 



III. NASTU'RTIUM (from nasus, the nose, and tortus, tor- 

 mented ; acrid taste of N. qfficinale, which affects the muscles of 

 the nose.). R. Br. in hort. kew. ed. 2. vol. 4. p. 109. D. C. 

 syst. 2. p. 187. prod. 1. p. 137. but not of Haller and Moench. 



LIN. SYST. Telradynamia, Siliquosa. Silique nearly cylin- 

 drical, short or declinate. Stigma somewhat two-lobed. Calyx 

 equal at the base, spreading. Seeds small, not margined, dis- 

 posed in two irregular series. Herbs usually aquatic, smooth, 

 branched, easily rooting. Stems cylindrical. Leaves variable, 

 usually pinnately-cut. Racemes many-flowered, without bracteas ; 

 pedicels filiform. Flowers white or yellow. Siliques generally 

 declinate. This genus differs from Siaymbrium, which it is very 

 much like, in the cotyledons being accumbent, not incumbent. 



SECT. I. CARDA'MINUM (from xapSta, kardia, the heart, and 

 in /HID, damao, to subdue ; stomachic quality of the plant.) D. C. 

 syst. 2. p. 188. prod. 1. p. 137. Petals white, larger than the 

 calyx. Siliques nearly cylindrical. Glands 4, at the base of the 

 stamens. Seeds reticulately-wrinkled. Cotyledons obliquely in- 

 cumbent. Perhaps a proper genus. 



1 N. OFFICINA'LE (B. Br. in hort. kew. ed. 2. vol. 4. p. 110.) 

 leaves pinnate ; leaflets ovate , somewhat cordate, repand ; up- 

 per leaves pinnatifid, with narrow segments ; terminal leaflets 

 large. If. . H. W. Native in rivulets throughout the world ; 

 plentiful in Britain in clear spring rivulets and ponds. Sisym- 

 brium Nasturtium, Lin. spec. 917. Fl. dan. t. 690. Smith, eng. 

 bot. t. 855. Curt. fl. lond. 6. t. 44. Woodv. med. bot. 1. p. 

 134. t. 48. Lun. hort. jam. 2. p. 269. There are two or three 

 varieties of this plant but they are of little consequence. 



Water-cress is well known for its agreeable warmth and 

 flavour, in the form of a salad, it is esteemed a wholesome sto- 

 machic, and is recommended by many physicians as an antiscor- 

 X 2 



