THE MANUAL OF GARDENING. 
31 
ped to theBartram Botanic Garden, with praiseworthy liberality, 
a very splendid collection of Cacti ; but unfortunately many of 
them fell into ill health, and it is feared are no longer to be found 
in the United States. The collection of Mr. I. B. Smith is now 
unquestionably the finest in this country ; and great praise is due 
him for the indefatigable manner in which he has pursued their 
accumulation from every quarter, solely impelled by the love of 
science. He has, however, the additional gratification of seeing 
his exertions the source of pleasure to all who have the opportu- 
nity to inspect his houses. 
Calceolaria. — This plant is delicate, suffering greatly from 
the heat of summer, and seldom succeeds well, except in the 
hands of skilful cultivators. The new hybrid varieties are very 
showy, perhaps among the most so, of lately introduced plants. 
Calla.— This beautiful plant, though most commonly grown 
in pots, is sufficiently hardy, with a little protection from wet and 
frost, to stand the winter in our borders, where its large glossy 
leaves, and noble white flower, with its golden spadix in the 
centre, render it very interesting. It may be propagated by 
taking up the roots in August or September, and separating the 
offsets, planting them in small pots, with a rather sandy light 
soil. If the pots are taken within doors in winter, plenty of light 
and air must be given, but not much water, ot which it cannot 
have too much during the heat of summer. They should have 
air every mild day, and be gradually hardened towards the mid- 
dle of April to bear the open air, and in May can be plunged, or 
turned out into the border. The roots are thick and fleshy, as is 
the whole plant. When left in the border for the winter, empty 
pots may be turned over them in very wet weather, or during 
severe frosts. It is much safer, however, to remove them to the 
green-house, or cold pit, during winter, in which case they will 
come early into bloom. 
Camellia Japonica.— This truly beautiful tribe, which now 
extends to several hundred varieties, was named by Lmnseus in 
honour of Father Camelli , a Jesuit, who introduced it into Eu- 
rope in the year 1739. They are evergreen shrubs, growing 
not only in Japan, but in China, Cochin-China, and the East 
Indies, generally ; and of all flowers, except the Rose , is probaoiy 
most admired. The plant attains an elevation of forty to fifty 
feet in India, but appears of slower growth in Europe, and the 
United States; or else plants of that size are of great age; here 
it forms a shrub only, but of the most superb appearance, whose 
persistent foliage of a glossy green, and splendid flowers, place 
it without dispute in the first rank among the plants of our 
green-houses. The greater number of the varieties, have 
