naceous at the sides, most exquisitely acuminate at the top, 

 and having a sort of awl-shaped dagger-point. The root is 

 perennial. 



Some of the species of this genus are in the highest estima- 

 tion for their utility, from the herbage being applied to the 

 manufacture of linen cloth, while the seeds afford a valuable 

 oil. The Narbonensei though too small and delicate to afford 

 either of these necessaries to mankind, may nevertheless claim 

 some share of esteem as an ornamental herbaceous plant ; no 

 Other of the genus can be considered to surpass it for bril- 

 liancy of colour : the bright and lively blue of the flowers, 

 added to the succession of blooms it produces, renders it worthy 

 of being intermixed in the herbaceous border with other deh- 

 Gate plants of the same height of growth. It is slender in 

 habit, will thrive extremely well in light garden mould, and 

 is readily propagated by seeds or by cuttings. It was intro- 

 duced into this country in 1759. 



The figure here represented was drawn from a specimen 

 flowering in the herbaceous border at Mr. Knight's Exotic 

 Nursery, King's Road, Chelsea. 



BEFEKENCES TO THE PLATE. 



i . Showing the stamens enveloping the germ. 

 2. The pistils exposed. 



*^* Since the publication of Rhododendron arhoreum, Plate 7, we 

 have been informed that a plant of this species flowered in July last 

 in the conservatory of M. Boursault, Rue-blanc, Paris^ and was there 

 supposed to have been the first which had flowered in Europe. 



