204 
With the habit of Malcémia lacera; but with the stigma of Hés- 
peris. Flowers rose-coloured, a little smaller than those of 
Malcémia maritima, otherwise similar. 
Pretty Rocket. Fl. May, July. Pl. 2 or 3 inches. 
17 H. crexura ra (D.C. syst. 2. p. 456.) pedicels shorter 
_ than the calyx ; petals obovate ; leaves oblong, smooth ; blunt, 
crenated; stem branched. ©. H. Native in the Levant be- 
tween Aleppo and Mossul. Flowers purplish ; claws of petals 
length of calyx. 
Crenulated-leaved Rocket. Pl. 4 foot. 
+ Species, the generic characters of which are very doubtful. 
18 H.? pinnatrFipa (Mich. fl. bor. amer. 2. p. 31.) pedicels 
at last longer than the calyx; petals obovate; lower leaves pin- 
natifidly-lyrate, upper ones unequally serrated. -Y%.H. Na- 
tive of humid woods in Tennessee and Kentucky, and not by any 
means rare along the banks of the river Ohio below Le Tarts 
rapids. Herb very smooth. Stems simple or branched, angu- 
larly-sulcate. Flowers small, pale-purple or lilac. 
Pinnatifid-leaved Rocket. Fl. Ju. Jul. Pl. 2 or 3 ft. high. 
19 H.? pe’npura (D.C. syst. 2. p. 457.) pedicels deflexed, 
hispid; leaves covered with bristles, lower ones somewhat lyrate, 
upper ones ovate, toothed ; stem branched, hispid. ©? 14? H. 
Native of Syria. Flowers unknown. ` 
Pendulous-flowered Rocket. Pl. 14 foot. 
20 H.? axncustiro Lia (D.C. syst. 2. p. 457.) pedicels very 
short, thick; petals oblong; leaves linear, grossly-toothed, 
smoothish; stém hispid. ©. H. Native of Syria between 
Aleppo and Mossul. Flowers small, white. Stem branched, 
erect. 
Narrow-leaved Rocket. Pl. 3 or 4 inches. 
t Species not sufficiently known. 
21 H. nrvea (Baumg. fl. trans. 2. p. 278.).- 4%. H. Native 
of Transylvania on mountains. Herb very hairy, branched. 
Leaves alternate, stalked, upper ones sessile, stem-clasping, 
ovate-lanceolate, toothed. Flowers stalked, corymbosely- 
racemose, white, sweet-scented ; petals oval, blunt, entire. 
Snow Rocket. Fl. Aug. Sept. Pl. 1 foot. 
22 H. reva’nva (Lag. cat. hort. madr. 1814. p. 20.) Y. H. 
Native of Spain on the Mariana mountains. Stems erect, some- 
what angular. Spikes of flowers terminal, elongated. Calyx 
dark-purple. Corolla violet. Petals oblong, truncate, longer 
than the calyx. The whole plant is covered with short, white, 
reflexed, appressed hairs. 
Repand-leaved Rocket. FI. Ju. Jul. Clt. 1820. Pl. 4 to 3 ft. 
Cult. The perennial species of this genus thrive best in a 
light rich soil, and they require to be frequently transplanted 
and divided, otherwise’ they will not long exist, particularly the 
double varieties of Hésperis matrondlis ; the best time to do 
this, is after they are done flowering and are again beginning to 
spring afresh from the root. The biennial and annual sorts do 
well in any common garden-soil, requiring the same treatment 
as other hardy annuals and biennials. 
LVI. ANDREO’SKIA (in honour of Antonio Andrzejowski, 
a Russian botanist, who has studied cruciferous plants particu- 
larly). D.C. prod. 1. p. 190. Sisymbrium, section VII. Hes- 
peridépsis, D. C. syst. 2. p. 484. Dontostémon, Andrz. in litt. 
Lin. syst. Tetradynamia, Siliquosa. Silique sessile, roundish, 
2-celled, with somewhat concave valves and a membranous disse- 
piment. Style short, slender. Seeds ovate, disposed in one row. 
Cotyledons flattish, incumbent. Herbs villose, glandular. Leaves 
linear, entire, or pectinately pinnate-lobed. Flowers white, or 
purplish. Calyx almost erect, deciduous, equal at the base. 
_ integrif dlia but a little larger. 
CRUCIFERE. LV. Hesreris.. LVI. ANDREOSKIA. LVII. SISYMBRIUM. 
Petals unguiculate, entire. Two lateral stamens free, not toothed ; 
the four larger ones are sometimes joined by pairs, and sometimes 
furnished with a tooth on the inside, at the top. 
1 A. ıntEGRIFOLIA (D. C. prod. 1. p. 190.) leaves linear, 
quite entire ; branches and pedicels glandular and pilose as well 
as the pods. ©.H. Native in sandy places of mountains in 
Siberia from Yenissei to the regions beyond the Baical, and at 
the river Lena. In arid fields of Dauria near Tschita and about 
Doroninsk. Sisýmbrium integrifdlium, Lin. spec. 922. Hés- 
peris glandulòsa, Pers. ench. 2. p. 203. Cheiránthus muricàtus, 
Weinm. cat. hort. Dorp. 1810. p.41. Flowers white, varying 
to purple. ` 
Entire-leaved Andreoskia. Fl. Ju. Jul. Clt. 1819. Pl. 4 to} ft. 
2 A. ecLANDuLo'sa (D. C. prod. 1. p. 190.) leaves linear, 
quite entire, and are as well as stem villous, without glands. 
©.H. Native of Siberia. Sisymbrium eglandulosum. D.C. 
syst. 2. p. 485. Sisymbrium Sieversianum, Redowsk. from 
Fisch. in litt. Differing from A. integrif dlia in the stems and 
leaves being villous, but not glandular. Flowers always white. 
Glandless Andreoskia. FI. Ju. Jul. Clt. 1824. Pl. 5 foot. 
3 A. pectina‘ra (D.C. prod. 1. p. 190.) leaves pectinately- 
pinnate-lobed ; lobes linear, acute, and are as well as stem pilose, 
interspersed with muricated glands. ¢.H. Sisymbrium pecti- 
natum, D.C. syst. 2. p. 485. Flowers the same as those of A. 
H. punctata and pildsa, Poir, 
Var. a, pinnata ; stem dwarf; flowers white. Hésperis pin- 
nata, Pers. ench. 2. p. 203. Native of Siberia on the Lake 
Baical near Penolsk. 
Var. B, pectinata ; stem elongated; flowers white. Sisym- 
brium pectinatum, Fisch. in litt. Native of Dauria at the river 
Ighitou and about Doroninsk. , 
Var. y, pinnatifida ; stems elongated ; flowers reddish. Chei- 
ránthus pinnatífidus, Willd. spec. 3. p. 523. Native of Siberia. 
Pectinated-leaved Andreoskia. Fl. May, July, Clt. 1825. 
Pl. 4 to 4 foot. 
Cult. These plants are scarcely worth cultivating, except in 
botanic gardens. They only require to be sown in the open 
ground, and treated like other hardy annuals. A light sandy 
soil will suit them best. 
LVII. SISY’MBRIUM (Zıovußpiov was the Greek name of 
some aquatic plant. It appears to have had an agreeable smell. 
Ovid advises that Venus should be propitiated with garlands of 
myrtle, of roses, and of sisymbrium. It is, however, more pro- 
bably derived from ovotfoc, sisibos, a fringe, as some of the 
species have fringed roots). All. ped. 1. p. 274. D.C. syst. 
2. p. 458. prod. 1. p. 190. Sisymbrium, spec. Lin. Juss. &c. 
Lin. syst. Tetradyndmia, Siliqudsa. Silique roundish, ses- 
sile upon the torus. Stigmas 2, somewhat distinct, or connate 
into a head. Calyx equal at.the base. Seeds ovate or oblong. 
Cotyledons fiat, incumbent, sometimes oblique. Stamens not 
toothed. Herbs annual or perennial, rarely suffrutescent. Leaves 
very variable on the same plant. *Racemes elongated after 
flowering; pedicels bractless or furnished with a leafy bractea, 
filiform erect. Flowers yellow or white. 
Sect. I. Vetxa‘rum (velar, the Arabic name of the cress). 
D. C. syst. 2. p. 459. prod. 1. p. 191. Silique awl-shaped, 
broadest at the base, ending in the very short style at the top, 
appressed to the axis, standing on very short pedicels, which 
thicken after flowering. . Flowers yellow. 
1 S. orFictna'rum (Scop. carn. ed. 2. no. 824.) leaves runci- 
nate, pilose; stem pilose ; pods subulate, pressed to the rachis. 
©. H. Native throughout the whole of Europe in waste land 
and among rubbish, very common along the sides of walls, 
hedges, and roads; plentiful in Britain, also in the north of 
