CRUCIFERA. XXVIII. Discovium. XXIX. Mentocus. XXX. Cryprota. XXXI. PELTARIA. 
for ornamenting rock-work or the front of flower-borders; they 
are all very easily increased by seeds, which ripen in abundance. 
The shrubby kinds are also easily increased by dividing the 
plants at the root or by cuttings planted under a hand-glass, 
which root readily. The annual sorts should be sown in the open 
border or on rock-work. 
XXVIII. DISCO‘VIUM (from céiskoe, discos, a disk ; valves 
of pods keeled, in the disk ?) Rafin. in journ. phyt. vol. 89. anno. 
1819. p. 96. D.C. prod. 1. p. 236. 
Lin. syst. Tetradynamia, Siliculosa. Silicle lenticular with 
an entire dissepiment and keeled valves; cells many-seeded. 
Style permanent, crowned by a blunt stigma. Calyx closed. 
An annual, erect, simple slender herb, with distant sessile, ob- 
long, obtuse, entire leaves. Petals yellow, entire, wedge-shaped, 
about equal in length with the calyx. An intermediate genus 
between Alyssum and Thlaspi. 
1 D. Ontore’nse (Rafin. l. c.) ©. H. Native of North 
America, on the banks of the Ohio. 
Ohio Discovium. PI. 4 foot. 
Cult. An inconspicuous annual plant, the seed of which only 
require,to be sown in the open border. 
XXIX. MENIO'CUS (from unvn, mene, the moon, and 
oxkoc, okkos, an eye; shape of seeds?) Desv. journ. bot. 3. p. 
173. D. C. syst. 2. p. 325. prod. 1. p. 165. 
Lin. syst. Tetradynamia, Siliculdsa. Silicle sessile, ellip- 
tical, with flat valves. Seeds not margined, 6 or 8 in each cell. 
Calyx at the base equal. Petals entire. Larger stamens toothed. 
An annual herb, but nevertheless. it is frutescent at the base ; 
much branched, erect, greyish-velvety from stellate short hairs. 
Leaves linear, entire. Racemes terminal; pedicels filiform, 
bractless. Flowers small, white. This genus is hardly distinct 
from Adyscton, unless that there are never fewer than 6 seeds in 
each cell, not 2 or 4 as in that genus, and with smooth silicles. 
1 M. urniréuius (D.C. syst. 2. p. 325.) leaves linear, blunt- 
ish, quite entire. ©. H. Native about Astracan among rub- 
bish, and in cultivated land; in Tauria and Caucasus, near Ta-- 
naim; in Syria, between Aleppo and Mossul; in Podolia and 
Illyria; in Spain, in the province of Valentia, in several 
places, &c. Deless. icon. sel. 2. t. 42. Alyssum linifolium, 
Steph. in Willd. spec. 3. p. 467. A. minimum, Pall. itin. 3. p. 741. 
eniocus serpyllifdlius, Desv. l. c. A. Draba, Bieb. from Desv. 
Journ. l. c. A. Ilyricum, Willd. enum. suppl. p. 44. A. lineari- 
folium, Lag. elench. hort. madr. 1815. p. 9. Farsétia linifolia, 
Andrz. cruc. ined. Petals white, a little longer than the calyx. 
Flax-leaved Meniocus: Fl. May, Jul. Clt. 1819. Pl. 4 to 4 ft. 
Cult. This little annual will answer well for rock-work, 
where the seeds should be sown. 
XXX. CLYPEOLA (from clypeus, a buckler; in allusion 
to the form of the silicles.) Geert. fruct. 2. p. 283. t. 141. f. 6. 
D. C, syst. 2. p. 326. prod. 1. p. 165. Clypèola spec. Lin. and 
uss. 
Lin. syst. Tetradynàmia, Siliculdsa. Silicle orbicular, 1- 
celled, 1-seeded, with flat valves. Calyx equal at the base. 
Petals entire. Stamens toothed. Seeds compressed. Small 
annual herbs with the habit of Aljssum and Biscutélla, erect or 
diffuse, greyish from short stellate hairs. Leaves oblong- 
linear, entire. Racemes terminal, erect ; pedicels filiform, short, 
bractless. Flowers small, yellow, or when old, whitish. 
Sect. I. Iontuna’srr (from cov, ion, a violet, and Ada, 
thlao, to compress ; that is to say, flat-seeded violet.) D. C. syst. 
2. p. 326. prod. 1. p. 165. Silicles with ciliated margins, and 
smooth or pubescent disks. 
181 
1 C. Iontuta’spr (Lin. spec. 910.) stems diffuse, or ascend- 
ant. ©. H. Native of Spain; south of France; Avergne; 
Lower Vallais ; Italy ; Sicily ; Arcadia; Iberia, near Tiflis; and 
in Persia, near Lenckeran, &c. &c.: growing on walls and in 
sandy places ; also on gypsaceous and calcareous sterile hills. 
Cav. icon. 1. p. 22. t. 32. f. 2. Boiss. fl. europ. t. 455. Desv. 
journ. bot. 3. p. 161. t. 25. f. 7. Lam. ill. t. 560. f. 1. Fos- 
selìnia ionthláspi, All. ped. no. 901. Clypèola monospérma, 
Lam. fl. fr. 2. p. 462 and 484. Alýssum ionthláspi, Clairv. herb. 
val. 216. Flowers small, yellow. Ovary 1-seeded. 
Flat-seeded Violet, or Common Treacle-Mustard. Fl. May, 
Jul. Clt. 1710. Pl. 2 or 3 inches. 
Secr. II. O'rium (from ora, a brim or margin; silicles 
toothed on the margins.) D. C. syst. 2. p. 327. prod. 1. p. 
165. Silicles with toothed margins, and clothed with long, soft 
hairs. 
2 C. ERIÓPHORA (Cav. from Lag. in litt. D. C. syst. 2. p. 
327.) stem erect, almost simple ; calyx permanent. ©. H. Na- 
tive of Spain, on hills, at Aranjuez. O*rium lanugindsum, Desv. 
journ. bot. 3. p. 162. t. 25. f. 10. Alyssum eriéphorum, Pourr. 
in Willd. enum. 2. p. 671. Vesicària lanuginòsa, Poir. dict. 8. 
p- 572. Flowers small, when dry, whitish. Petals spreading, 
permanent, hardly longer than the calyx. 
Wool-bearing-Treacle-Mustard. Fl. May, Jul. 
Pl. 4 foot. 
Clt. 1820. 
Sect. III. BERGERE TIA (John Pyramus Bergeret, who wrote 
a Flora of the Pyrenees.) D. C. syst. 2. p. 328. prod. 1. p. 165. 
Silicles with toothed margins, and echinated disks. 
3 C. Ecuina ra (D. C. syst. 2. p. 328.) stem erect; calyx 
deciduous. ©. H. Native of the Levant. Clypèola lasio- 
cárpa, Pers. ench. 2. p. 193. Bergerètia echinàta, Desv. journ. 
bot. 3. p. 161. t. 25. f. 9. Flowers small, yellow. Pods 1- 
seeded. 
Var. B, ramosissima (D. C. 1. c.) stem much branched ; leaves 
oblong, covered with short stellate hairs. i 
Echinated-podded Treacle- Mustard. Fl. May, Jul. Pl. 4 foot. 
.Cult. These are pretty little curious annual plants; well 
adapted for rock-work, or the front of flower borders. They 
only require to be sown where they are intended to remain. 
XXXI. PELTA'RIA (from zedrn, pelte, a small buckler ; 
in allusion to the form of the silicles.) Lin. gen. no. 1083. Gært. 
fruct. 2. p. 383. t. 141. Desv. journ. bot. 3. p. 161. t. 24. 
D. C. syst. 2. p. 328. prod. 1. p. 166. Bohátschia, Crantz, 
aust. p. 5. t. 1. f. 1. 
Lin. syst. Tetradynàmia, Siliculdsa. Silicle orbicular, 1- 
celled, 1-(f. 46. i.) 4-seeded, with flat valves. Calyx equal at the 
base. Petals entire. Stamens toothless. Seeds pendulous, and 
often solitary from abortion. Smooth, erect, perennial herbs, with 
stalked, ovate, entire, radical leaves, and sessile sagittate stem- 
clasping, cauline ones. Racemes ‘many, almost disposed in co- 
rymbs ; pedicels bractless, filiform, erect, at the time of flower- 
ing, and when in fruit spreading or somewhat recurved. Flowers 
small, white. 
1 P. avxra‘cea (Lin. spec. 910.) stem-leaves sagittate, stem- 
clasping ; pods flat, smooth. %. H. Native of Austria, Croa- 
tia, Transylvania, and Piedmont about Fenestrelles, &c. in 
shady places. Jacq. fl. aust. t. 123. Boiss. fl. eur. t. 446. 
Clypéola alliacea, Lam. dict. 2. p. 55. Clypéola perénnis, Ard. 
spec. 26. t.6. The whole plant when bruised smells strongly of 
arlic. 
5 Garlic-scented Peltaria. Fl. May, Jul. Clt. 1601. Pl.1 to 2 ft. 
2 P. anocustiroxia (D.C. syst. 2. p. 329.) lower stem-leaves 
