OF ORNAMENTAL PERENNIALS. 55 
D. CANADENSIS, Dec. 
A native of Canada, with white or purple flowers, and glaucous leaves ; introduced in 1823. 
D. LACHENALI^FLORA, Dec. 
A native of Siberia, nearly allied to D. tenuiflora, but with smaller flowers. A native of Siberia, introduced 
in 1824. 
GENUS II. 
CORYDALIS, Dec. THE CORYDALIS. 
Lin. Syst. DIADELPHIA HEXANDRIA. 
Geheric CHAR«cTKn. — Pctajs 4, tho upper One of wliich Ijas a spur | they all become free and deciduous. Stamens diadelphoua. Capsules 
at the base ; sometimes all joined at the base, and sometimes with the t 2-vaWed, compressed, oval-oblong, linear, many-seeded, smooth, 
lower one lico, and the rest joined ; but when they begin to decay, j 
Description, &c. — The species comprised in this genus have only a single spur, drawn out at the base ; and 
hence the genus is called Corydalis, which signifies a lark, from the long spur of the flower bearing some 
resemblance to that of the bird. 
1.— CORYDALIS LONGIFLORA, Ptrs. THE LONG-FLOWERED CORYDALIS. 
under the leaves ; leaves bi-temato ; segments three-parted ; lobes 
oval-oblong : bmctcus oblong, entire ; racemes elongated, ten-flowered ; 
stylo longer than the pedicels. (G. Don.) 
SvNONVMES. — Fumaria longifiora, Willd. ; F. Schongiui, Pall. ; 
V. caudata, Lum. ; Corydalis caiidata, Pers. 
Engravincs. — Bot. Mag. t. 3230 ; and our fig. 4, Plato IG. 
Specific Ch*hacter. — Stem simple, furnished with leafy scales 
Description, &c. — This species lias delicate flowers with long tails, white, tipped with pink. The leaves 
are glaucous, and the root is a globular tuber about the size of a hazel-nut. The leaves all spring from the root. 
The species is a native of the Altaic Mountains, whence it was introduced in 1832. It is quite hardy. 
2.~CORYDALIS TUBEROSA, Dec. THE HOLLOW-ROOTED FUMITORY. 
SvNoNYMF — Fumaris cava, Lin. | nate ; segments cuneated, cleft j bracteas ovate, entire ; root hollow. 
EsoRAViNos.— Bot. Mag. t. 232; and our/jf. 3, in PI. 16. j (G. Don.) 
Specific Characteu. — Stem simple, not scaly; leaves 2, bi-ter- j 
Description, &c. — This species is remarkable for having a hollow root ; the tuber of which it consists being, 
as Parkinson observes, " like a shell, every part of which when broken will grow," This hollow tuber some- 
times attains a large size, but it never thickens, the cavity increasing in exact proportion to the size of the outer 
covering. The flowers are pink, with very large greenish bracts, which are entire, instead of being cut as in 
some of the species. It is a native of Germany, whence it was introduced before 1596. There are three 
varieties ; the flowers of one being white, another pink, and the third purple. They are all quite hardy in 
British gardens, where they will flower from March till the beginning of May ; but as they rarely produce 
any seed, they are propagated by dividing the root. Any garden soil will be suitable, but a shady 
situation is to be preferred. The pink-flowered kind is most common, the white and purple varieties being 
very rare 
