﻿THE ORCHID REVIEW. [September, 1904. 



as possible. Some of the hybrids of C. insigne are almost as accommo- 

 dating as their parent, and particularly C. X Leeanum, of which C. 

 Spicerianum is the other parent. Some forms of this are very handsome. 

 C. X Arthurianum (C. insigne crossed with the rare C. Fairrieanum) is also 

 a handsome hybrid which is very easily grown, and a similar remark applies 

 to C. x nitens (insigne X villosum). These all flower during the autumn 

 and winter months, and if the house contains a partition will succeed best 

 in the warmer of the two compartments. All are terrestrial Orchids, and 

 require similar treatment to C. insigne. 



Cymbidium Lowianum will also thrive in a cool greenhouse, and may 

 be grown under much the same treatment as Cypripedium insigne. 



Among epiphytic Orchids Odontoglossums occupy the leading position, 

 and the popular O. crispum is easily first favourite, though not the easiest 

 to grow in all situations. A beginner would do well to commence with 

 established or semi-established plants, but as imported bulbs can frequently 

 be obtained at the sale rooms it may be well to commence with their treat- 

 ment. When received they should be placed on a layer of sphagnum moss, 

 and kept just moist, to enable the bulbs to plump up. As soon as any begin 

 to push new roots they should be potted up in rather small pots, so that 

 they may at once take hold of the compost. The latter should consist 

 of fibrous peat and sphagnum moss, intermixed with a few oak or beech 

 leaves, and after being pressed in firmly round the bulbs a few small sticks 

 may be inserted, to keep the bulbs firm. Moderate waterings should be 

 given until the roots have taken firm hold of the compost, and the growths 

 are making good progress. If any flower-spikes appear they should be 

 removed, or at most a single flower be allowed to remain just to show what 

 they are like. The whole subsequent treatment should be directed to 

 getting the plants strongly established, and any necessary repotting should 

 be done just as growth recommences, and new roots begin to push. When 

 they flower an occasional plant may prove to be O. X Andersonianum or 

 some other of the O. crispum natural hybrids, or even some other species 

 which grows with O. crispum, and there is the further possibility of getting 

 one of those rare spotted forms which are so highly prized. 



The other Colombian and Ecuadorean species require practically the 

 same treatment, and among them the amateur will find a good selection. 

 For example O. Pescatorei and O. triumphans, O. luteopurpureum, and O. 

 Hallii, O. polyxanthum, O. cirrhosum, O. gloriosum, O. Edwardi, and 

 others, which will give plenty of variety. And among other things requiring 

 identical treatment may be mentioned Cochlioda Ncetzliana, C. vulcanica, 

 and Ada aurantiaca. Keep them cool and moist during the summer, and 

 shade we'll during bright weather. At other times they like plenty of light. 

 Care should be taken not to over-water during the dull winter months. 



