1882.1 



AND HORTICULTURIST. 



45 



ened by the water poured upon it instead of the 

 web of fibres only, this requiring an examina- 

 tion of the roots, and reducing or pruning them 

 at least once a year, a measure almost indis- 

 pensable. 



At the respective periods of growth and flower- 

 ing, the plants will require plentiful watering, 

 during the latter, if not regularly supplied, the 

 bloom buds will infallibly fall off instead of ex- 

 panding into flower. At other times a moderate 

 supply is essential. The eff'ect of constantly 

 watering may be presumed to diminish or des- 

 troy the fertility of the small quantity of earth 

 allotted to each plant; therefore, when the an- 

 nual re-potting occurs, carefully take away as 

 much of the former ball of earth as can be done 

 without injuring or cutting the roots. 



The Camellia may be considered as a hardy 

 greenhouse plant, requiring a temperature only 

 just above freezing point. Like the myrtle, it 

 will succeed much better than when grown in a 

 higher temperature. 



The usual methods of propagation are by 

 grafting and budding on the single red Camellia, 

 cuttings of which are found to strike root more 

 readily than of the double varieties. The cut- 

 tings are taken as soon as the young shoots are 

 sufficiently ripe at the base. They are carefully 

 prepared by being cut smoothly over with a 

 sharp knife at a joint, and divested of one or two 

 leaves at the bottom, and then planted firmly 

 about two inches deep in pots filled with the 

 Camellia compost, before described, and the 

 upper part filled with fine sand. They are then 

 well watered and the plant^s plunged over a little 

 gentle heat and kept closely shaded for three or 

 four months, by which time short fibres or a 

 callus, from which they afterwards diverge, are 

 produced, When suflftciently rooted to bear re- 

 moval, they are potted singly in small pots, the 

 sand being then carefully removed. The pots 

 should be well drained and filled with the 

 Camellia compost, with the addition of a little 

 white sand. They are afterwards to be sprinkled 

 with water and placed in a close frame or pit, 

 until they begin to root afresh, and by degrees 

 exposed to the air. 



The succeeding season they may be potted in 

 the same soil as the other Camellias, and simi- 

 larly treated, and many of the plants will then 

 have obtained sufficient size and strength for 

 budding, and all of them by the following sea- 

 son. The best time for budding is as soon as the 



new wood is sufl3ciently ripened, but it may be 

 done at almost any season of the year. 



NICHT-OPENINC FLOWERS. 



BY J. H. KRELAGE, HAARLEM, HOLLAND. 



The fact related in the Gardener's Monthly 

 of November, 1881, page 341, of a Cactus flower- 

 ing usually at night, and by exception in the 

 daytime is very interesting, and it would be of 

 great interest to know the name and origin of 

 this plant. From the given notice it might be 

 Cereus triangularis (Haw.); Cereus compressus 

 (Mill.); Cactus triangularis (Lin.); Cactus triangu- 

 laris aphyllus (Jacq.); which in our climate usu- 

 ally opens at six o'clock in the evening, and lasts 

 till eleven o'clock the following morning. It has 

 fine white flowers, and broad flat epiphyllum- 

 like leaves. Here it flowers very rarely, and 

 only when of some age, and when permitted to 

 fix its aerial roots in some brick wall. Cereus 

 Napoleonis (Grab.) ; Cereus triangularis major 

 (Salm. not Pfeifier's), is very near to this, also with 

 white flowers, but which open in the morning 

 and close in the evening of the same day. If 

 this last w^is not so very scarce, one could think 

 the described Cactus to be a hybrid between the 

 triangularis and Napoleonis. Like some hybrids 

 of Cereus grandiflorus, the well-known night- 

 bloom^g Cactus, also, has here a different flow- 

 ering period. 



ROSES FOR ORNAMENTAL FRUIT. 



BY W. C. STRONG . 



Fully endorsing your opinion as to the desira- 

 bleness of the Dog, Cinnamon and Carolina Roses, 

 for their showy fruit in autumn, let me add that 

 Rosa rugosa (Japan) is superior, by far, to any 

 other variety in this respect, and also that its 

 large flowers and rich, luxuriant foliage render 

 it one of the most desirable shrubs of recent in- 

 troduction. 



DENDROBIUM CAMBRIDCEANUM. 



BY MANSFIELD MILTON, YOUNGSTOWN, O. 



This fine Orchid from the north of India de- 

 serves more attention by lovers of the beautiful 

 than it gets. It is a deciduous drooping species, 

 and is shown to best advantage when grown in a 

 basket, given plenty of water during the period 

 of its growth, gradually withholding as the 



