CRUCIFERÆ. XLII. BISCUTELLA. 
the base. ©. H. Native of Apulia or Puglia and Lucania. B. 
didyma £. Lin..spec. 911.—Col. ecphr. 1. p. 283. te 284. f. 1.— 
Mor. oxon. 2. p. 249. sect. 3. t. 9. f. 12. Very like B. eriocárpa 
and B. A’pula, but differing in the pods being twice the size. 
There is a variety of this with sinuately-lyrate leaves. 
Columna’s Buckler-Mustard. Fl. Ju. July. Clt. 1819. Pl. 1 ft. 
14 B. A'rura (Lin. mant. 254.) pods rough in the disks and 
margins with small hairs; leaves lanceolate, serrated; stem 
leafy, branched, hairy. ©. H. Native of the mountains of 
Italy, Naples, and Greece. Lam. ill. t. 560. f. 1. but not of his 
dict. Schkuhr. handb. 2. no. 1824. t. 182. Smith, fl. grec. t. 
629. Flowers small. Pods approximate. D. C. diss. no. 15. 
syst. 2. p. 412. 
Apulian Buckler-Mustard. Fl. Ju. July. Clt. 1710. Pl. 1 ft. 
15 B. xeroca’rpa (D. C. diss. no. 16. syst. 2. p. 413.) pods 
smooth ; leaves lanceolate, serrated ; stem leafy, hairy, branched. 
©. H. Native of the Levant. B. A’pula, Geert. fruct. 2. p. 
279. t. 141. Very like B. A’pula, but differing in the fruit being 
very smooth, not rough, &c. This plant was formerly cultivated 
in the jardin des plantes, Paris, under the name of B. orientalis. 
Smooth-podded Buckler-Mustard. Fl. Jun. Jul. Clt. 1816. 
Pl. 1 foot. 
16 B. osova`ra (Hort. par. D. C. diss. no. 18. syst. 2. p. 
413.) pods smooth ; leaves sub-radical obovate, grossly toothed, 
and narrowed into the petiole, smoothish, ©.H. Native of? 
Very like B. montana, but differing in the root being annual, not 
perennial. 
Obovate-leaved Buckler-Mustard. Fl. June, July. Clt 1818. 
Pl. 1 foot. 
§. 2 Perénnes. Plants perennial. 
17 B. monra‘na (Cav. icon. 2. p. 50. t. 177.) pods smooth, 
even; leaves nearly all radical obovate-cuneated, toothed, downy. 
Y.H. Native of Spain, in Valentia, on rocks. D. C. diss. no. 
17. Stems many from the same root. 
Mountain Buckler-Mustard. Fl. March, May. Clt. 1820. 
Pl. $ to 3 foot. 
18 B. taviea'ta (Lin. mant. 225.) pods smooth, even; leaves 
nearly all radical, pilose, scabrous, oblong, somewhat toothed or 
entire, cauline ones linear, few, quite entire. 2. H. Native of 
mountains in places exposed to the sun, in the Alps of Europe, 
particularly in the Pyrenees, Jura, &c. Jacq. aust. t. 339. icon. 
rar. p. 11. t. 38. Schrank. fl. mon. 1. t. 94. Bois. fl. eur. t. 447. 
B. didyma, Scop. carn. no. 804. Clypéola didyma, Crantz. 
‘aust. p. 20. 
Var. P, B. alpéstris ; Waldst. ex. Kit. pl. rar. hung. 3. p. 
253. t. 228. Native of Hungary. 
Var. y, B. glabra (Clairv. herb. val. 216.) a very common 
plant, easily distinguished from the rest. 
Smoothed Buckler-Mustard. Fl. Mar. My. Clt. 1790. Pl. 1 ft. 
19 B. xu'cipa (D. C. diss. no. 20. t. 7. syst. 2. p. 414.) pods 
smooth, even; leaves smooth, for the most part radical. 2%. H. 
Native of Abruzzo, in Naples, on mountains. Plant easily distin- 
guished from the rest by its smooth shining leaves. 
Var. a, dentata ; lower leaves toothed. B. lucida, Balb. hort. 
taur. : 
Var. B, integrifolia ; lower leaves entire. 
dict. 3. p. 620.—Barrel. icon. t. 254. 
Shining-leaved Buckler-Mustard. Fl. Jun, Jul. Clt.? Pl. 1 ft. 
20 B. cornonoriro'nia (All. ped. no. 907.) pods smooth, 
even ; leaves pilosely-scabrous, for the most part radical, pinnati- 
fid, with 2 or 3 remote lobes on each side. Y%.H. Native of 
Spain, south of France, and Piedmont, in sterile places of moun- 
tains exposed to the sun. Sisymbrium Valentinum, Lin. spec. 
920.? exclusive of the synonyms: B. didyma, var. x. Gouan. ill. 
p. 41.—D. C, diss. no. 22. t. 18. 
B. spatulata, Lam. 
197 
Buckhorn-leaved Buckler-Mustard. Fl. Jun, July. Clt. 1790. 
PI. 5 to 3 foot. 
21 B. amsreva (D.C. diss. no. 23. t.11. f. 1. syst. 2. p. 
415.) pods smooth, even; leaves pilosely-scabrous, radical ones 
sinuately-toothed, narrowed at the base, cauline ones very few, 
somewhat cordate at the base and half stem-clasping. 2. H. 
Native of Nice, south of France, and Spain, in sterile places ex- 
posed to the sun. 
Var. a, revolita ; leaves with the recesses of the teeth revo- 
lute. B. coronopifolia, Lin. mant. 255. ? 
Var. B, plana ; leaves with the recesses of the teeth flat. 
Ambiguous Buckler-Mustard. Fl. June, July. Clt. 1819. 
Pl. 4 to 3 foot. 
22 B. saxa’titts (Schleich. cent. exsic. no. 69.) pods smooth, 
rough with elevated dots on the disk ; leaves rough with hairs, 
generally radical, oblong. 2%.H. Native of the south of Eu- 
rope, in barren mountainous places, particularly in Transylvania, 
Italy, south of France, and Spain. D. C. diss. no. 24. t. 10. 
Var. a, B. longifolia (Vill. dauph. 3. p. 305.) leaves entire. 
Var. B, B. méllis (Lois. not. p. 168.) leaves deeply-toothed or 
sinuately-pinnatifid. 
Var. y, B. intermèdia (Gouan. ill. p. 42.) leaves toothed, 
stem very dwarf. B. depréssa, Thom. pl. exsic. A very vari- 
able species, and only can be distinguished by the pods being 
rough on the disk from elevated dots. 
Rock Buckler-Mustard. Fl. Jun. Aug. Clt. 1819. PI. 4 to ł ft. 
23 B. sEMPERVI'RENS (Lin. mant. 255.) pods smooth, rough 
‘on the disk with elevated dots; leaves generally radical, erect ; 
linear-lanceolate, hoary, almost entire. 2/.H. Native of Spain, 
in the province of Valentia; also in Portugal in Estremadura. 
B. anchuseefolia, Turr. giorn. venez. t. 1. from Vittm. sumn. 4. 
p. 33.—Barrel. icon. t. 841.—Bocc. mus. 2. p. 167. t. 122. 
Evergreen Buckler-Mustard. Fl. June, July. Clt. 1784. 
Pl. 4 to = foot. 
24 B. romento'sa (Lag. in litt. D. C. syst. 2. p. 416.) pods 
finely pubescent and rough with dots; leaves oblong, narrowed — 
at the base, repand-toothed, soft, downy; those on the branches 
stem-clasping. 2%.H. Native of Spain, on mountains, grow- 
ing in chinks of rocks. Stems woody at the base. 
Tomentose Buckler-Mustard. ‘Fl. Jun. July. Pl. ł to 1 foot. 
25 B. srenopny tia (Duf. in ann. gen. 7. p. 299.) pods 
rough on the disk with dots, smooth ; petals furnished with 2- 
auricles ; radical leaves hispid with rigid hairs, lanceolate-linear, 
remotely toothed, or rather somewhat pinnatifid ; stems almost 
naked and rather simple. %. H. Native of Spain, in Valentia. 
Perhaps sufficiently distinct from B. coronopifolia and B. sax- 
atilis. 
Narrow-petalled Buckler-Mustard. Fl. June, July. Clt. 1821. 
Pl. $ to 1 foot. 
t Species hardly. known. 
26 B. mazor (Schkuhr. handb. 2. no. 1822.) calyx laterally 
gibbous ; pods smooth, veiny. 
Larger Buckler-Mustard. Fl.? Pl. 2 feet? 
27 B. ancustiro't1a (Schkuhr. handb. 2. no. 1823.) calyxes 
laterally gibbous ; pods warted, rough. 
Narrow-leaved Buckler-Mustard. PI. 1 foot. 
Cult. These are pretty plants with yellow flowers. The pe- 
rennial species are well adapted for ornamenting rock-work, or 
the front of flower-borders; they prefer a dry sunny situa- 
tion. The annual kinds should be sown in the open borders, and 
if sown at different times throughout the season a succession of 
flowers may be kept up. A light sandy soil suits them all best, 
and as they all produce seeds in abundance they are therefore 
easily increased. 
