202 



The first three sorts afford an agreeable variety in the borders 

 and clumps, as they continue long in flower. The four following 

 kinds are likewise hardy, and afford variety among other potted 

 plants in the open air during the summer. 



The other species are more tender, but produce an agreeable 

 effect among the stove and green-house collections, from the great 

 beauty and continuance of the flowers in many of the sorts. 



2. EPILOBIUM ANGUSTIFOLIUM, 



ROSE-BAY WILLOW-HERB. 



THIS genus contains a plant of the herbaceous, flowery, peren- 

 nial kind. 



It belongs to the class and order Octandria Monogynia, and ranks 

 in the natural order of Calycanthemte. 



The characters are: that the calyx is a one-leafed perianthium, 

 four-parted, superior; divisions oblong, acuminate, coloured, deci- 

 duous : the corolla has four roundish petals, outwardly wider, emar- 

 ginate, expanding, inserted into the divisions of the calyx: the sta- 

 mina consist of eight subulate filaments; the alternate ones shorter: 

 anthers oval, compressed, obtuse: the pistillum is a cylindric germ, 

 extremely long, inferior: style filiform : stigma four-cleft, thick, ob- 

 tuse, rolled back : the pericarpium is an extremely long capsule, 

 cylindric, streaked, four-celled, four-valved : the seeds numerous ob- 

 long, crowned with down: receptacle extremely long, four-cornered, 

 free, flexile, and coloured. 



The species cultivated is E. angustifolium, Narrow-leaved or Rose- 

 bay Willow-herb. 



It has a creeping root. The stem is upright, from three to six 

 feet high, branched at top, round, and pubescent; the branches alter- 

 nate. The leaves alternate, running slightly down the stem, smooth, 



