182 
stalked, upper ones linear; pods flat, short. 2%. H. Native 
about Damasctis, on a mountain called Dgebel-cher. Pods 
ovate-orbicular, compressed, 2-ovulate, 1-seeded from abortion. 
Narrow-leaved Peltaria. Fl. May, July. Pl. 1 foot. 
3 P. exastiroria (D. C. syst. 2. p. 330.) cauline leaves sa- 
gittate, stem-clasping ; pods flattish, rather rough, leathery. 1- 
seeded (f. 46. i.) ©.? H. Native of Syria, between Aleppo and 
Mossul. 
Woad-leaved Peltaria. Fl. Jun. Jul. Clt. 1823. Pl. 1 foot. 
Cult. The species of this genus will thrive well in any com- 
mon garden soil; they are readily increased by seeds. 
XXXII. PETROCA‘LLIS (from zerpoy, petron, a rock, and 
xadoc, kalos, beautiful; in allusion to the plant growing on the 
rocks, which it enlivens with the beautiful tufts of rose-coloured 
blossoms.) R. Br. in hort. kew. ed. 2. vol. 4. p. 93. D.C. syst. 
2. p. 330. prod. 1. p. 166. l 
Lin. syst. Tetradynàmia, Siliculòsa. Silicle sessile, oval, 
with flattish valves. Seeds not margined, 2 in each cell. Funi- 
cles adhering to the dissepiment. Cotyledons oval, obliquely 
accumbent. A small ever-green, branched, tufted herb. Leaves 
cuneated at the base, but cleft at the apex into 3-5 divisions. 
Racemes short, somewhat corymbose, few-flowered, bractless. 
Flowers rose-coloured. Plant having the appearance of a spe- 
cies of Saxifraga when not in flower. 
.1 P. Pyrena'tca (R. Br.l. c.) Yy.H. Native of the Pyre- 
nees, Provence, Piedmont, Switzerland, Austria, Transylvania, 
Carniola, and many other parts of the south of Europe, on 
rocks, between stones, in places exposed to the sun at the height 
of 2100 and 4100 feet. Lod. bot. cat. t. 635. Sweet, brit. fl. 
gard. icon. Dràba Pyrenàica, Lin. spec. 896. Jacq. fl. aust. t. 
228. Curt. bot. mag. t. 713. Flowers elegant rose-coloured. 
Leaves cuneate, 3 or 5, cleft at top. 
Pyrenean Petrocallis. Fl. May, June. Clt. 1759. Pl. 4 foot. 
Cult. This pretty little plant is well adapted for ornamenting 
` rock-work, or it may be grown in little pots, in a mixture of 
peat, loam, and sand, and placed among other alpine plants. It 
is easily increased by seeds, or dividing the plant at the root. 
XXXIII. DRA‘BA (from dpaBn, drabe, acrid, biting, ac- 
cording to Linnzeus ; taste of leaves. It is to be suspected that the 
name Draba was not originally given to this genus.) D. C. syst. 
2. p. 331. prod. 1. p. 166. Draba, spec. Lin. Juss. R. Br. 
Lin. syst. Tetradynàmia, Siliculdsa. Silicle sessile, oval 
or oblong (f. 46. 7.), with flat or convex valves (f. 46. 7.). Seeds 
many, not margined (f. 46. j.). Calyx equal at the base. 
Petals entire. Stamens all toothless. Perennial or annual 
branched herbs, which are sometimes tufted, sometimes elongated, 
` smooth or pilose, or usually velvety from soft branched hairs. 
The leaves are either linear, oblong or ovate, entire or toothed. 
Racemes terminal ; pedicels filiform, bractless. Flowers yellow 
or white. 
Sect. I. Arzorsts (from ae, aei, always, Gwoc, zoos, alive, 
and ote, opsis, resemblance ; plants always green, like D. Aizoon.) 
D. C. syst. 2. p. 852. prod. 1. p. 166. Little evergreen, tufted, 
perennial plants with naked scapes, and ciliated stiff leaves. 
Flowers yellow, with filiform styles, which vary in length. (A 
proper genus, according to Andrz. in litt.) 
1 D. Arzoipes (Lin. mant. 91.) scapes naked, smooth ; leaves 
lanceolate-linear, keeled, ciliated; stamens about the length of 
the petals ; style almost as broad as the pod. %. H. Native 
on walls, rocks, and gravelly places of mountains, in France, 
Germany, Switzerland, North of Italy, Carpathian Mountains, 
Transylvania, and Britain in South Wales ; near Whormshead, 16 
miles west of Swansea; about Pennard Castle, near Swansea, 
CRUCIFERE. XXXII. Perrocatuis. XXXIIL DRABA.. 
abundantly, in inaccessible spots. Jacq. fl. aust. t.-192. Smith, 
eng. bot. t. 1271. Draba alpina, Crantz, aust. 1. p. 13. Alys- 
sum cilidtum, Lam. fl. fr. 2. p. 479. Draba montana, Berg. 
phyt. univ. icon. Moe'nchia aizoides, Roth. germ. I. p. 273. 
Var. B, minor (D. C. syst. 2. p. 333.) distinguished by its 
smaller stature, very short leaves, and smooth pods. Draba 
ciliaris, D. C. fi. fr. ed. 3. vol. 4. p. 697. 
Var. y, diffisa (D. C. 1. c.) stems elongated, diffuse. Draba 
ciliaris, Lin. mant. 91.—Ger. gallopr. p. 344. t. 13. f. 1. 
Aizoon-like or Sea-Green Whitlow-Grass. Fl. March, April. 
Wales.. Pl. 2 or 3 inches. 
2 D. sracuyste mon (D. C. syst. 2. p. 334.) scapes naked, 
smooth ; leaves elongated, linear, keeled, ciliated ; stamens hardly 
equal in length with the calyx. Y. H. Native of-++e++? 
Draba aizoides, Curt. bot. mag. t. 170.—Mill. icon. 1 p. 14. t. 
20. f. 2. Draba ciliaris, Lin. mant. p. 91? 
Short-stamened Whitlow-Grass. Fl. March, April. 
Pl. 2 or 3 inches. 
3 D. arzòon (Wahlenb. fl. carp.: p. 193. in a note.) scapes 
naked, smooth ; leaves linear, acutish, keeled, stiff, ciliated ; style 
as broad as the hairy pod, but one half shorter. %. H. Native 
of Bavaria,. Austria, Hungary, Transylvania, and Caxpathian 
mountains, particularly on Mount Chocsz ; on rocks on the lower 
mountains. Draba ciliaris, Schrank. bav. 2. p. 177. Pods the 
length of pedicels, always hispid with short hairs. 
Aizoon or Evergreen Whitlow-Grass. Fl. April, May. Clt. 
1819. Pl. 4 foot. i 
4 D. cuspipa’ta (Bieb. suppl. 424.) scapes naked, villous; 
leaves linear, acutish, keeled, ciliated; pods lanceolate, hispid, a 
little longer than the style. 3. H. Native of Tauria, Apen- 
nines, Spain, &c. on mountains, on rocks in places exposed to 
the sun. Dràba aizoides, Pall. ined taur. Bieb. fl. taur. 2. p- 
92. but not of Lin. Draba áspera, Bertol. amæœn. ital. p. 92. 
but not of Adams. D. alpìna, Cav. 
Pointed-leaved Whitlow-Grass. Fl. April, May. Clt. 1821. 
Pl. 4 foot. > 
5 D. rica (Willd. spec. 3. p. 423.) scape naked, smooth, 
leaves oblong, stiff, blunt, keeled, sparingly ciliated, older ones 
reflexed ; petals length of calyx ; style not equalling the breadth 
of the smooth pod. %.H. Native of Iberia, on rocks. Petals 
roundish, nearly the length of the calyx. , 
Rigid-leaved Whitlow-Grass. Fl. April, May. Pl. 4 foot. 
6 D. sryoives (D. C. syst. 2. p. 335.) scapes naked, smooth ; 
leaves oblong, small, keeled, sparingly ciliated, much crowded ; 
petals and stamens twice the length of the calyx ; style hardly 
equalling the breadth of the smooth pod. Y.H. Native of 
Caucasus and Iberia, in alpine, rocky situations. Draba rigida, 
Bieb. fl. taur. 2. p. 93. suppl. 426. Draba ceespitdsa, Hoffm. 
hort. mose. 1808. no. 1225. not of Willd. Petals oblong, twice 
the length of the calyx. Plant emulating Saxifraga bryoides. 
Green-Moss-like Whitlow-Grass. Fl. March, May. Clt. 
1821. Pl. 2 inches. 
7 D. Ory'mrica (Sibth. in herb. Banks. D.C. syst. 2. p- 
336.) scapes naked, velvety ; leaves linear, keeled, much crowd- 
ed, ciliated ; pods ovate, hoary-villous ; style very short. 2. H. 
Native on Mount Olympus. Draba Aizoides, Smith, prod. fl. 
grec. 2. p. 4. but not of Lin. Pods ovate, scarcely compressed. 
Olympus Whitlow-Grass. Fl. April, May. Pl. 2 or 3 inches. 
8 D. sruNiæròLa (Stev. in mem. sc. nat. mosc. 3. p. 268.) 
scapes naked, pubescent; leaves linear, somewhat ‘keeled, cili- 
ated, acute, loosely rosulate ; petals twice the length of the calyx 
and stamens ; pods oval, pubescent; style very short. XY. H 
Native of Eastern Caucasus, on Mount Schahdagh. Petals twice 
the length of the calyx. Plant loosely tufted. 
Brunia-leaved Whitlow-Grass. Fl. Jun. Clt. 1825. Pl. 4 ft. 
9 D. Ericaroxia (Stev. mem. sc. nat. mose. 3. p- 268.) scapes 
Cit.? 
