162 



CRUCIFERJ2. X. AKABIS. 



smaller in all its parts, and the leaves are less hoary. A tufted 

 rather straggling plant with white flowers. 



Waved-leaved Wall-Cress. Fl. May, Aug. PI. J foot. 



7 A. BILLARDJE'RU (D. C. syst. 2. p. 218.) leaves few-toothed, 

 hoary or downy with branched hairs, lower onesobovately-wedge- 

 shaned, upper ones oblong an& clasping the stem ; pedicels 

 longer than the calyx ; pods, when nearly ripe, spreading. If. ? 

 H. Native of Syria near Damascus, on a mountain called 

 Dgebel-cher. A tufted plant with white flowers. Like A. al- 

 pina. Pods smooth, an inch and a half long. 



La Billardiere's Wall-Cress. PI. \ foot. 



8 A. BREVIFO'LIA (D. C. syst. 2. p. 218.) leaves with a few 

 blunt teeth, downy with branched hairs, radical ones obovate, 

 stem ones cordately-sagittate, ovate, nearly entire ; pedicels 

 longer than the calyx; pods spreading, rather curved. %, H. 

 Native of Syria. A tufted plant, with white flowers. 



Short-leaved Wall-Cress. PI. i foot. 



9 A. THYRSOI'DEA (Smith, fl. grace, t. 642.) leaves obovate, 

 bluntly-toothed, hoary with branched hairs, cauline ones clasp- 

 ing the stem ; racemes capitate ; pedicels rather shorter than the 

 calyx ; pods curved, ascendant. If. . H. Native of Bithynia 

 on the top of Mount Olympus. A tufted plant with white 

 flowers. 



7%rse-flowered Wall-Cress. PI. J foot. 



10 A. LONGIFO LIA (D. C. syst. 2. p. 219.) leaves toothed, 

 hoary with branched hairs, lower ones obovately-oblong, on long 

 stalks, cauline ones oblong, somewhat stem-clasping ; pedicels 

 longer than the calyx. 2 . H. Native of Persia. Very like 

 A. d/bida, but distinct. Deless. icon, sel. 2. t. 25. A tufted 

 plant, with white flowers. 



Long-leaved Wall-Cress. Fl. May, Aug. Clt. 1820. PL 1 ft. 



11 A. MO'LLIS (Stev. mem. soc. nat. mosc. 3. p. 270.) leaves 

 grossly-toothed, somewhat pubescent with small stellate hairs, 

 lower ones on long petioles, cordate-roundish, cauline ones ovate- 

 cordate, clasping the stem. Native of Caucasus on shaded rocks. 

 Having the appearance of Alliariaojjicinalis. Flowers white. 



Soft Wall-Cress. Fl. May, July. Clt. 1823. PI. 2 feet. 



12 A. TOXOPHY'LLA (Bieb. fl. taur. suppl. p. 448.) leaves 

 somewhat pubescent with small stellate hairs, radical ones 

 oblong, stalked, rather sinuately-toothed, stem ones sagittate- 

 lanceolate, quite entire ; pedicels longer than the calyx. $ . H. 

 Native of sunny fields on the lower Volga, not far from the 

 colony of Sarepta, on hills about Catherinoslaw, also in the desert 

 of Issiro. Sisymbrium salsugineum, Schlecht. in herb. Willd. 

 A very distinct and elegant species. Flowers white, about the 

 size of those of A. alpina. 



Bow-leaved Wall-Cress. PI. 1 foot. 



^ 2. Oblongipetala. Cauline leaves cordate, clasping the 

 stem. Petals oblong, or linear-cuneated, erect. 



13 A. AURICULA'TA (Lam. diet. 1. p. 219.) leaves somewhat 

 toothed, scabrous with branched hairs, lower ones oval, drawn 

 out at the base into the petiole ; stem ones bluntly cordate-auri- 

 culate ; pedicels hardly longer than the calyx ; pods smooth or 

 pubescent. 



Var. a, A. aspera (All. ped. auct. p. 18. t. 2. f. 2.). Native 

 of Piedmont, Occitania, Provence, &c. on hills in sandy or 

 gravelly soil. 



Var. ft, A. erecta (Vill. dauph. 3. p. 319. t. 37.). Native of 

 Spain in the same kind of situations as the rest. 



Var. y, Turritis pdtula, (Ehrh. beitr. 7. p. 259 ? Waldst. et 

 Kit. hung. 1. p. 59. t. 59.) Native of Hungary, &c. 



Var. S, dasycarpa (Andrz. in litt.) pods pubescent. O- H. 

 Native of Thuringia and South Podolia. A. recta, Baugm. fl. 

 trans. 2. p. 267. Pods pubescent, Wallr. All the above varie- 

 ties have been considered by some botanists sufficient to consti- 



tute distinct species, but they agree in habit and character, and 



can scarcely be considered even varieties. Petals white, oblong. 



r-leaved Wall-Cress. Fl. May. Cult. 1805. PI. f foot. 



14 A. SAXA'TILIS (All. pcd. no. 973.) leaves somewhat 

 toothed, scabrous with branched hairs, lower leaves oval, drawn 

 out a little along the petiole, stem ones acutely-cordate-auriculate ; 

 pedicels at last 4-times longer than the calyx. $ . H. Native 

 among rocks in the lower mountains of Provence, Dauphiny, 

 Savoy, Vallais, and Piedmont. A. nova, spec. Vill. dauph. 3. 

 p. 319. t. 37. Petals white. 



Var. ft, Tourrette Cantonense, (Reyn. mem. Swiss. 1. p. 168.) 

 Plant a little more hoary than the species. 



Stone Wall-Cress. Fl. May, 1805. PI. I foot. 



15 A. CRISPA'TA (Willd. enum. 684.) leaves acutely-toothed, 

 scabrous with branched hairs, lanceolate, clasping the stem, 

 waved, radical ones drawn out along the petiole ; pedicels longer 

 than the calyx ; pods spreading. If. . H. Native of Carniola. 

 A tufted plant with obovate-oblong, blunt, white petals. 



Crisp-leaved Wall-Cress. Fl. May. Clt. 1816. PI. 4 foot. 



16 A. SAGITTA TA (D. C. fl. fr. suppl. 592. syst. 2. p. 221.) 

 leaves a little toothed, scabrous with branched hairs, radical ones 

 ovate or oblong, drawn out along the petiole, stem ones lanceo- 

 late, sagittately-cordate ; pedicels length of calyx ; pods strictly 

 erect. $ . H. Native throughout the temperate parts of the 

 northern hemisphere in rugged places, among stones, &c. This 

 is a very variable plant, even in the same situation. 



Var. a, Gerardiana (D. C. syst. 2. p. 222.) leaves scabrous, 

 stem ones drawn out into auricles at the base. $ . H. Native 

 of the south of Europe, particularly in the south of France, 

 Italy, &c. 



Var. ft, subglabrata (D. C. syst. 1. c.) leaves nearly smooth, 

 stem ones auriculately-sagittate ; racemes compound. Q. H. 

 Native of Vascony. Flowers white. 



Var. y, ovata (D. C. syst. 1. c.) leaves scabrous, radical ones 

 ovate toothed, cauline ones clasping the stem. $ . H. Native 

 of North America. A. ovala, Poir. suppl. 5. p. 557. 



Var. S, oblonga/a (D.C. 1. c.) leaves scabrous, radical ones 

 ovate-oblong, toothed, with the petiole shorter than the leaf, 

 cauline ones sagittate, clasping the stem. $ . H. Native of 

 North America, Turritis oblongata, Raf. amer. monthl. mag. 2. 

 p. 44. 



Var. f, longisiliquosa (D. C. syst. 1. c.) pods 10-times longer 

 than the pedicels. A. longisiliquosa, Wallr. sched. p. 359. 



Arrom-leaved Wail-Cress. Fl. May, Jul. Clt. ? PI. ft. 



17 A. HIRSU TA (Scop. earn. ed. 2. n. 835.) leaves toothed, 

 scabrous with branched hairs, radical ones ovate-oblong, drawn 

 out along the petiole, stem ones ovate or lanceolate, sagittate ; 

 pedicels length of the calyx; pods numerous, erect. $ . H. 

 Native of middle and northern Europe in fields and rugged 

 places, viz. Germany and Austria, also of North America from 

 Hudson's Bay to the Rocky Mountains, and at the Columbia 

 river on the north-west coast and from Canada to lat. 68, as 

 well as in the island of Unalaschka and Kamtschatka ; in England, 

 Sussex, in Svvitham Botton near Croydon, on the walls of La- 

 kenham church-yard near Norwich, also near Bury, &c. Frequent 

 on dry rocks in Scotland, Schrank. fl. mon. 3. t. 248. Turritis 

 hirsuta, Lin. spec. 930. Jacq. icon. rar. 1. t. 126. Smith, engl. 

 hot. t. 587. Schkuhr. handb. 2. t. 185. Fl. dan. t. 1040. 

 A'rabis montana, Lam. diet. 1. p. 219. Turritis ovata, Pursh, fl. 

 amer. sept. 2. p. 438. Turritis sagittata, Richards, in Frankl. 

 1st journ. ed. 2. app. p. 26. Scarcely distinct from A. sagit- 

 tala, unless that the leaves are not sagittate at the base. Flowers 

 white. 



Hairy Wall-Cress. Fl. May, July. Britain. PI. | or 1 ft. 

 ISA. STENOPE'TAIA (Willd. enum. suppl. 46.) leaves hispid, 

 grossly toothed, radical ones oblong-lanceolate, stalked, cauline 



