The Culture of Greenhouse Orchids 



Finally, no Oduntoglot lasts less than a fortnight 

 in perfection ; some last four weeks. 



I have not given all the cool species. The 

 catalogue which may be found in books of reference 

 contains a few — very few — scarcely worth attention, 

 some which are too costly for the modest amateur, 

 and some so rare that only half a dozen specimens 

 or less are known. Further, there are numberless 

 varieties, differing, as orchids will, from the type, 

 and every one named. For example, Mr. Bull offers 

 twenty-three different forms of Odont. crispiim 

 (Alr.rnn.drcr') in his sale catalogue. jSTot less than 

 a hundred, certainly, are registered ; but some of 

 th(jse long titles represent the single plant known 

 to exist. It is not my purpose to treat of curiosi- 

 ties. Nevertheless, I shall name a few famous 

 varieties of ci-ispum, because they are so often 

 mentioned, in conversation and in print, that the 

 reader ought to know something about them. 



The colours given represent the general effect ; 

 when the lip differs notably from the sepals and 

 petals in this respect, its hue is noted. 



Adriaiuc. — A natural hybrid of crispum and 

 Hunnewclliaiiuin, which seems to have sprung into 

 fashion of late — at least, it is much more common 

 than formerly at shows. A very striking flower 

 always, though two specimens alike could hardly 

 162 



