CRUCIFER^E. XXIH.VESICARIA. XXIV. SCHIWERECKIA. XXV. ADYSETON. 



177 



9 V. ARENOSA (Richards. 1. c.) lower leaves somewhat rhom- 

 boidal, obsoletely sinuate-toothed, grey with stellate down ; stem 

 round, suffruticose at the base ; pods globose, pubescent. Fj . 

 H. Native of North America on hills and dry prairies on the 

 Arctic shore, at Saskatchewan, and at Carlton House. V. arc- 

 tica, Hook, in bot. mag. t. 2882. var. ft. Hook. fl. bor. amer. p. 

 48. Flowers yellow, smaller than those of the preceding. 

 Sterns spreading or ascendant. 



Sand Vesicaria. Fl. April, June. PI. ^ foot? 



10 V. DIDYMOCA'RPA (Hook. fl. bor. amer. t. 16.) plant beset 

 with forked hairs ; leaves spatulate, slightly toothed, or entire ; 

 stems decumbent ; pods didymous, inflated about the length of 

 the slender style, beset with forked hairs ; root fusiform. I/ . 

 H. Native of North America in the Arctic regions. Flowers 

 yellow, disposed in racemose corymbs. Calyx equal at the base. 



Twin-fruited Vesicaria. PI. \ foot. 



11 V. COCHLEARIOI'DES (Spreng. syst. 2. p. 872.) herba- 

 ceous ; leaves oblong, obtuse, sinuately-toothed, rather fleshy, 

 smooth ; calyx permanent, inflated when in fruit. If. . H. Na- 

 tive of the East Indies. Alyssum cochlearioides, Roth. 



Scurvy Grass-like Vesicaria. PI. 1 foot. 



SECT. II. ALYSSOI'DES (plants with the habit of Alyssum.) 

 D. C. syst. 2. p. 298. prod. 1. p. 159. Silicles ovate, with 

 concave stiffish valves. 



12 V. CRE'TICA (Poir. diet. 8. p. 570.) calyx deciduous; 

 leaves oblong, entire or repand, waved, covered with hoary 

 down. Tj . or If. . H. Native of Crete. Alyssum Creticum, 

 Lin. spec. 910 ? Willd. spec. 3. p. 460. Alp. exot. p. 117 and 

 118. icon. Pods ovate-globose, hoary. Seeds girded by a 

 membranous margin. Flowers yellow. 



Cretan Vesicaria. Fl. May, Aug. Clt. 1739. PI. foot. 



13V. VESTI'TA (Desv. jour. bot. 3. p. 171 and 184.) calyx 

 permanent ; leaves linear, acute, downy, entire. J? . H. Native 

 of Persfa near Hamadan. Flowers yellow. Seeds not margin- 

 ed. Deless. icon. sel. 2. t. 35. 



Clothed Vesicaria. PI. f foot. 



14 V. PANICULA TA (Desv. jour. bot. 3. p. 171.) leaves ob- 

 ovate, entire, smooth ; pods ovate, somgwhat inflated. fj . H. 

 Native of Crete. Alyssum paniculatum, Desf. cor. Tourn. p. 

 67. t. 50. Flowers unknown. 



Panicled-fiowered Vesicaria. PI. ^ foot. 



Cult. The species of this genus are well adapted for orna- 

 menting rock-work or the front of flower borders : young cut- 

 tings planted under a hand-glass will soon strike root ; but the 

 best and most general method of increasing them is by seed, 

 which ripen in abundance. They thrive best in a dry situation, 

 in any kind of soil. Some of the rarer kinds should be planted 

 in pots, so that they may be protected by a frame during severe 

 weather. 



XXIV. SCHIWERE'CKIA (in honour of Andr. Schivereck, 

 a famous Polish botanist, formerly a friend of Marschall Bieber- 

 stein's.) Andrz. Cruc. ined. in D. C. syst. 2. p. 300. prod. 1. 

 p. 160. 



LIN. SYST. Tetradynamia Siliculosa. Silicle ovate, with con- 

 vex valves, which are somewhat depressed lengthways in the 

 middle. Seeds numerous, without margins. Calyx equal at 

 the base. Petals entire. Larger stamens toothed. A little 

 evergreen perennial herb, white from stellate down. Radi- 

 cal leaves rosulate, oval-oblong, toothed, cauline ones few, 

 stem-clasping. Racemes terminal ; pedicels filiform, bractless. 

 Flowers white. Ovaries and siliques grey from short soft 

 down. 



1 S. PODO'LICA (Andrz. et Bess, in litt. D. C. syst. 1. c.) 7/ . 

 H. Native of Podolia, Volhynia, and the Ural mountains in 

 VOL. i PART ii. 



Siberia. Deless. icon. sel. 2. t. 36. Sweet, brit. fl. gard. t. 77. 

 Alyssum Podolicum, Bess. cat. hort. crim. 1816. p. 8. 



Podolian Schiwereckia. Fl. May, July. Clt. 1817. PI. | foot. 



Cult. This pretty little plant thrives well in rock-work, or to 

 be grown in small pots in light sandy soil, and placed among 

 other alpines. It may be either increased by seed or dividing 

 the plant at the root. 



XXV. ADYSETON (meaning unknown.) Scop. earn. 2. p. 

 13. Alyssum, sect. 1. Adyseton, D. C. syst. 2. p. 301. prod. 

 1. p. 160. Alyssum, spec. Lin. 



LIN. SYST. Tett adynamia, Siliculosa. Silicles obovate or ellipti- 

 cal, with flat valves. Seeds 1 -2-4 in each cell, compressed, usually 

 girded by a membranous wing. Calyx equal at the base. Petals 

 entire. Stamens all or some of them toothed. Small ever- 

 green herbs or sub-shrubs, grey from soft starry-hairs or down. 

 Leaves oblong, linear, or obovate, entire. Racemes opposite the 

 leaves or terminal, elongating as they grow old ; pedicels fili- 

 form, bractless. Flowers yellow. The authorities given for the 

 species are under Alyssum. 



SECT. I. DISODONTEA (from cic, dis, double ; oSovf oS 

 odous odontos, a tooth ; stamens furnished with a tooth on each 

 side.) Flowers yellow. Stamens all or the larger ones furnished 

 with a tooth on each side. Seeds 1-2 in each cell. 



1 A. SAXA'TILE '(Lin. spec. 908.) stems suffruticose at the 

 base, somewhat corymbose ; leaves lanceolate, entire, clothed 

 with hoary tomentum ; pods obovate, orbicular, 2-seeded.; seeds 

 margined. J; . H. Native of Russia at the falls of Bori- 

 sthen, and in Podolia. Curt. bot. mag. t. 159. Aurinia saxatilis, 

 Desv. jour. bot. 3. p. 162. A very common plant in gardens. 

 Called in France Corbeille d'or. 



Rock Adyseton. Fl. April, May. Clt. 1710. PI. 1 foot. 



2 A. GEMONE'NSE (Lin. mant. 92.) stems suffruticose at the 

 base, panicled ; leaves lanceolate, entire, greyish-velvety from 

 stellate down ; pods nearly orbicular, 2-4-seeded ; seeds mar- 

 gined. >j . H. Native on walls about the town of Gemona in 

 Italy, and in Austria, Carinthia, and Transylvania, on rocky 

 mountains. Jacq. icon. rar. 3. t. 503. Alyssum saxatile, 

 Crantz. austr. p. 16. Vesicaria Gemonensis, Poir. diet. 8. p. 

 571. 



Gemona Adyseton. Fl. April, May. Clt. 1710. PI. 1 foot. 



3 A. ORIENTA'LE (Ard. specim. 2. p. 32. t. 15. f. 1.) stems 

 suffruticose at the base, panicled ; leaves lanceolate, repandly- 

 toothed, waved, downy ; pods almost orbicular, transversely- 

 oval, 4-seeded; seeds margined. Tj . H. Native of Crete on 

 the mountains ; at the Euxine sea on the sandy shore near Fanar. 

 On rocks in the island of Cois, and also in the south of Italy. 

 Smith fl. graec. t. 625. Clypeola tomentosa, Lin. mant. 92. 



Oriental Adyseton. Fl. May, June. Clt. 1820. PI. 1 foot. 



4 A. SPATHULA'TUM (Steph. in Willd. spec. 3. p. 465.) stems 

 suffruticose at the base ; leaves spatulately -obovate, stalked, grey- 

 ish-velvety ; pods orbicular, a little longer than the style ; seeds 

 margined, fj . H. Native of Siberia on mountains ; also in 

 cretaceous ground at the river Lena. Alyssum cretaceum, 

 Adams, soc. nat. mosc. 5. p. 109. Deless. icon. sel. 2. t. 37. 

 Petals emarginate, double the length of calyx. 



^palate-leaved Adyseton. Fl. Ap. May. Clt. 1821. PI. 4 ft. 



5 A. ARGE'NTEUM (Vitm. summ. 4. p. 30.) stems suffruticose 

 at the base, hoary with stellate down ; leaves oblong-spatulate, 

 silvery on the under surface ; pods ovate-orbiculate, compressed, 

 velvety ; seeds slightly margined. Tj . H. Native of the lower 

 Alps of Piedmont, on rocks exposed to the sun. Lunaria argen- 

 tea, All. ped. no. 901. t. 54. f. 3. 



Silvery-leaved Adyseton. Fl. May, June. Clt, 181 9. PI. 1 ft. 



6 A. BEHTOLONII (Desv. jour. bot. 3. p. 172 and 185.) stems 

 A a 



