OP ORNAMENTAL PERENNIALS. 
105 
OTHES SPECIES OF ONOSMA, BELONGING TO § I. 
O. GIGANTEUM, Lam. 
This species is a native of the Levant, whence it was introduced in 1818. It grows three or four feet high, 
and has pale yellow flowers, each of which has a dark purple style. 
O. RIGIDUM, Lede. 
This species is a native of Tauria, where it grows from six inches to a foot high. The root is of a 
dark brown, and quite woody ; and the flowers, which are of a pale yellow, stand erect. It is a dwarf plant, 
and it was introduced in 1826. 
O. STELLULATUM, Lehm. 
This is by some supposed to be a variety of 0. Taurica, to which it is very nearly allied, but the flowers are 
smaller, and of a paler yellow. It is a native of Hungary, and was introduced in 1816. 
§ 2 . — Hairs or bristles solitary. 
2.— ONOSMA SIMPLICISSIMA, Willd. THE SIBERIAN SIMPLE ONOSMA. 
SyNONYMEs. — O. Sibirica, Lamb ; O. simplex, Gcert. 1 Specific Character. — Stem simple. Flowers aggregate. Leaves 
Engraving. — Bot. Mag. t. 2248. I linear, acute, hairy. Filaments of the anthers very short. 
Description, &c. — This is a very singular-looking plant, only one flowering stem rising from each root ; 
though there are several small abortive shoots growing at its base. It is quite hardy, and flowers in May and 
June. It is a native of Siberia, whence it was introduced in 1768. 
OTHER SPECIES OF ONOSMA BELONGING TO § 2. 
O. ECHIOIDES, Lin. 
The stem of this species is much branched, and the root is brownish-red and woody. The flowers are of a 
pale-yellow, and the nuts quite smooth and shining. The plant is a native of Tauria, and was introduced 
in 1683, 
O. ECHINATUM, Desf. 
This is a biennial, a native of Barbary, which does not appear to have been introduced. The leaves and 
! stems are covered with white pungent hairs, and the nuts are tubercularly wrinkled. 0. setosum, Lede, 
1 
I appears to be nearly allied to this species. 
O. TINCTORIUM, Marsch. 
This species is remarkable for its root being used in dyeing violet colour. The flower is yellow, and the nuts 
are smooth, shining, and marbled. There is a variety, the flowers of which are lilac ; but in both the species 
and the variety, the flowers are white when they first expand, and do not assume their peculiar colours till they 
become matured. It is a native of Tauria, and was introduced in 1826. 
O. ORIENTALE, Lin. 
\ A native of the Levant, with handsome yellow flowers and purple styles. Introduced 1752. 
There are several other species, most of which are dwarf plants, very suitable for growing on rock-work ; 
I but, as most of them are natives of very dry sandy situations, they seldom live long when planted in a rich 
VOL. II. 
