NEW AND RARE PLANTS IN FLOWER. 
211 
THE ROSE TRIBE (ROSACE^). 
Cowania plicata. Plaited-leaved Cowania. A rigid, evergreen, decumbent, 
much-branched shrub, about two feet high, and furnished with a dark brown bark. 
Mr. Don adds : " We have seldom had an opportunity of laying before our readers a 
subject of equal interest and beauty with the present, which is not only a new 
species but an entirely new genus to our gardens. It was raised by Mr. Thomas 
Blair, gardener to Mr. Clay, of Stamford Hill, from seeds picked from a specimen 
collected by Captain Colquhoun, in the uplands of Mexico. It promises to be 
sufficiently hardy to endure our winters in the open air ; and as it is an evergreen 
shrub, with a peculiar habit, and large showy blossoms resembling a small rose, it 
must be regarded as the most valuable addition made to our gardens for some 
years past." Flowers, a rich lilac, produced in June. Brit. Fl. Gard. 400. 
NEW AND RARE PLANTS 
IN FLOWER IN THE LEADING NURSERIES IN THE VICINITY OF LONDON. 
Messrs. Henderson's, Pine-Apple Place. Potentilla Hopwoodiana. This 
is a rare and highly beautiful species of Potentilla^ the flowers of which are of a 
delicate rose or flesh colour, gradually becoming lighter towards the centre ; as they 
are produced in great profusion, a good plant, when in flower, presents one mass of 
blossoms, and has a most elegant appearance in the flower border during the au- 
tumnal months ; no collection should be by any means destitute of it. Phlox 
Drummondi. On this beautiful species and the excellent varieties emanating from 
it it is quite needless to lavish our encomiums, as we believe it is already univer- 
sally admired, but Messrs. Henderson possess a variety of it now in flower, which, 
for the richness and in tenseness of its colours, certainly surpasses all that we have 
previously seen ; although we have seen varieties in which the colour was brighter, 
yet, if it is an object with the cultivator to produce varieties with flowers of a very 
dark colour, we should think the present subject can hardly be surpassed. Messrs. 
Henderson have an elegant species of Crinum now in flower ; the flowers are white 
and extremely beautiful, and the plant is of rather dwarf habits ; from the numerous 
species of this genus which have white flowers, it is difficult to assign this to any 
one of them, and it is highly probable that it is a new one. 
Mr. Knight's, Chelsea. Potentilla Thomasii. This new and somewhat 
beautiful species of this interesting genus is now flowering in great abundance at 
the above nursery ; the flowers are large, and, being of a yellow colour, are not 
strikingly beautiful, but it is of an elegant habit, and justly merits a place in any 
collection. Lilium lancifolium album. This is a most beautiful variety of L. 
lancifolium, and though not possessing that diversity and beauty of colour which is 
found in L. lancifolium roseum (which latter has also recently flowered at this nur- 
sery), it is nevertheless highly ornamental, as the delicate white flowers, contrasted 
with the rich brown colour of the anthers, have a very interesting appearance ; 
