162 
smaller in all its parts, and the leaves are less hoary. A tufted 
rather straggling plant with white flowers. 
Waved-\eaved Wall-Cress. FI. May, Aug. PI. 3 foot. 
7 A. Brrrarpse'ru (D. C. syst. 2. p. 218.) leaves few-toothed, 
hoary or downy with branched hairs, lower ones obovately-wedge- 
shaped, upper ones oblong and clasping the stem; pedicels 
longer than the calyx ; pods, when nearly ripe, spreading. Y? 
H. Native of Syria near Damascus, on a mountain called 
Dgebel-cher. A tufted plant with white flowers. Like A. al- 
pina. Peds smooth, an inch and a half long. 
La Billardiere’s Wall-Cress. Pl. 4 foot. 
8 A. Breviroia (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. Pl. 4 foot. 
9 A. ruyrsorpEA (Smith, fl. grec. 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. 2/.H. Native of Bithynia 
on the top of Mount Olympus. A tufted plant with white 
flowers. 
Thyrse-flowered Wall-Cress. Pl. 4 foot. 
10 A. vonciro 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. %. H. Native of Persia. Very like 
A. dlbida, 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 4lliària officinalis. Flowers white. 
Soft Wall-Cress. Fl. May, July. Clt. 1823. Pl. 2 feet. 
12 A. toxorny tia (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 Issim. Sisymbrium salsugineum, Schlecht. in herb. Willd. 
A very distinct and elegant species. Flowers white, about the 
size of those of A. alpina. 
Bon-leaved Wall-Cress. Pl. 1 foot. 
§ 2. Oblongipétala. Cauline leaves cordate, clasping the 
stem. Petals oblong, or linear-cuneated, erect. 
13 A. auricuta‘rA (Lam. dict. 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. áspera (All. ped. auct. p. 18. t. 2. f. 2.). Native 
of Piedmont, Occitania, Provence, &c. on hills in sandy or 
gravelly soil. 
Var. B, A. erécta (Vill. dauph. 3. p. 319. t. 37.). 
Spain in the same kind of situations as the rest. 
Var. y, Turrilis pdtula, (Ehrh. beitr. 7. p. 259 ? 
Kit. hung. 1. p. 59. t. 59.) Native of Hungary, &c. 
Var. 6, dasycárpa (Andrz. in litt.) pods pubescent. 
Native of Thuringia and South Podolia. A. récta, Baugm. fl. 
trans. 2. p. 267. Pods pubescent, Wallr. All the above varie- 
ties have been considered by some botanists sufficient to consti- 
Native of 
Waldst. et 
©. H. 
CRUCIFERZ. 
X. Arasis. 
tute distinct species, but they agree in habit and character, and 
can scarcely be considered even varieties. Petals white, oblong. 
Ear-\eaved Wall-Cress. Fl. May. Cult. 1805. Pl. $ foot. 
14. A. saxatilis (All. ped. 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. B, Tourrette Cantonénse, (Reyn. mem. swiss. 1. p. 168.) 
Plant a little more hoary than the species. 
Stone Wall-Cress. Fl. May, 1805. Pl. ł 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. Y.H. Native of Carniola. 
A tufted plant with obovate-oblong, blunt, white petals. 
Crisp-leaved Wall-Cress. Fl. May. Clt. 1816. Pl. 3 foot.. 
16 A. sacitta'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, &e. 
Var. B, subglabrata (D.C. syst. l. c.) leaves nearly smooth, 
stem ones auriculately-sagittate ; racemes compound. ©. H. 
Native of Vascony. Flowers white. 
Var. y, ovata (D.C. syst. l. c.) leaves scabrous, radical ones 
ovate toothed, cauline ones clasping the stem. ¢.H. Native 
of North America. A. ovata, Poir. suppl. 5. p. 557. 
Var. 6, oblongata (D.C. l.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. e, longisiliquosa (D.C. syst. l. c.) pods 10-times longer 
than the pedicels. A. longisiliquosa, Wallr. sched. p. 359. 
Arrow-leaved Wail-Cress. Fl. May, Jul. Cit.? Pl. 3 ft. 
17 A. mirsvu'ra (Scop. carn. 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 Switham Botton near Croydon, on the walls of La- 
kenham church-yard near Norwich, also near Bury, &e. Frequent 
on dry rocks in Scotland, Schrank. fl. mon. 3. t. 248. 'Turritis 
hirstita, Lin. spec. 930. Jacq. icon. rar. 1. t. 126. Smith, engl. 
bot. t. 587. Schkuhr. handb. 2. t. 185. Fl. dan. t. 1040. 
A’rabis montana, Lam, dict. 1. p. 219. Turritis ovata, Pursh, fl. 
amer. sept. 2. p. 438. ‘Turritis sagittata, Richards. in Frankl. 
Ist 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. Pl. 3 or 1 ft. 
18 A. stenore’rana (Willd. enum. suppl. 46.) leaves hispid, 
grossly toothed, radical ones oblong-lanceolate, stalked, cauline 
