304 Gentranace@a—Centiana. 
habit and other particulars. But in this the azure-blue flowers 
are smaller, the calyx-tube is 5-winged, and the lobes small 
and erect. Corolla-tube narrower, with the limb about an inch 
in diameter, furnished with bifid scales at the throat between 
the lobes. This is a native of the North of England and some 
parts of Ireland, as well as the Continent. 
G. Pyrendaica is an alpine species near the last, with a 10- 
lobed corolla, the lobes alternately larger and smaller; and G. 
Bavarica is another closely-allied blue-flowered species, in 
which the radical leaves are not rosulate, and the throat of the 
corolla is naked. 
3. G. eruciata.— An erect-growing perennial about a foot 
high, bearing clusters of comparatively small blue flowers in 
the axils of the upper leaves. The corolla is 4-lobed and 
naked at the throat. Leaves decussate, lanceolate, 3-nerved, 
sheathing at the base. A native of mountainous parts of 
Central and Southern Europe. 
4, G. aselepiadeu.—Near the last in size and inflorescence, 
though there are rarely more than 2 flowers from the axil of 
each leaf, and usually only one. Leaves relatively large, sessile, 
ovate-lanceolate, acuminate, 5-nerved, rough on the margin. 
Flowers deep blue, appearing in Summer. Corolla 5-lobed, 
naked at the throat; tube broadly club-shaped. A handsome 
plant and one of the best for borders and general cultivation, 
There is a variety with white flowers. It is a native of the 
Alps and Apennines. 
5. G. litea.—This is a tall-growing plant from 3 to 4 feet 
high with large ovate or elliptical nerved leaves and dense 
clusters of yellow flowers in the axils of the upper leaves. 
Corolla 5-lobed, throat naked, Lobes often having 3 rows of 
dark lines or dots. A native of the mountainous parts of 
Central Europe, flowering with us in June or July. This 
species furnishes much of the officinal Gentian-root. 
6. G. Saponaria, syn. G. Cutésbei of some authors.—An 
erect free-growing species with ovate-lanceolate or obovate 
leaves narrowed at the base and rough on the margins. 
Flowers light blue, clustered in the axils of the upper leaves ; 
corolla-tube broad, limb 5-lobed ; lobes small, erect, alternating 
with bifid fringed appendages. A native of North America, 
flowering towards the end of Summer. 
7. G. Andréwsii, G. Supoucria of some writers, and per- 
haps oftener seen under that name in wardens. It differs from 
