304 Gentianacea Gentiana. 



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 bind 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. 



0. Pyrenaica 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. 0. cruclata. 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. asclepiadea. 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. lutea. 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 Grentian-root. 



6. G. Saponaria, syn. G. Catesbcei 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. Andreivsii, G. Saponaria of some writers, and per- 

 haps oftener seen under that name in gardens. It differs from 



