10 TiMEHRI. 



on moisture gathered from the air, and thrive only where 

 there are no winds to dessicate them, the most suitable 

 conditions can at once be formulated. These are, pro- 

 te6lion from the sea breezes, and damp surroundings. 

 Given a good screen to windward, light prote6tion over- 

 head and continual moist exhalations from beneath, we 

 have all that is necessary. No matter whether the plants 

 are fastened to living trees, mounted on logs or shingles, 

 or planted in baskets with burnt earth, charcoal, 

 crocks — even with no filling material whatever — they can 

 always be grown when the surroundings are favourable. 

 However, although this general statement is applicable 

 to every species, there are great differences between them. 

 The conditions under which, for example, Huntleya 

 violacea and Zygopetalon rostratum flourish, beside the 

 creeks or falls, are impossible to imitate without some 

 special arrangement, and therefore they can never be 

 grown in the open garden. A fair colle6lion can never- 

 theless be made by any one having a high hedge to 

 windward and a few suitable trees inside this screen. 

 Although this tree has not hitherto been used for such a 

 purpose we believe the very best for epiphytes is the 

 Saman. Planted in the middle of a garden and allowed 

 to grow naturally, its lower branches hang nearly to the 

 ground, so that they be easily utilised. Then, the foliage 

 is not too dense, as may be seen from the fa6l that it 

 does not prevent grass and other plants growing under- 

 neath. This reminds us that such a chara6ler is a very 

 good indication of the conditions necessary for growing 

 orchids successfully on trees. Whenever the shade 

 entirely prevents undergrowth it is too dense for orchids, 

 as may be seen in the forest where the banks of the 



