﻿July, 1904.] 



THE ORCHID REVIEW. 



takes place in intercrossed forms. It may be remembered that 

 O. X Wilckeanum crossed with O. crispum yielded an unspotted form 

 undistinguishable from the latter, and that the result of O. crispum crossed 

 with the blotched O. c. Crawshayanum was a poor unspotted O. crispum, 

 and it is considered that if reversion of this kind takes place at all it will be 

 specially demonstrated by the intercrossing of the finest varieties, which is 

 now being carried on. Seedlings of O. Hallio-crispum re-crossed with 

 O. crispum are interesting in this connection ; also a yellow loochristiense 

 crossed with O. crispum aureum, and O. crispum Raymond Crawshay 

 crossed with O. triumphans Lionel Crawshay, and the reverse cross, all of 

 which we noted. Blotched forms of O. crispum have also been inter- 

 crossed successfully. Another interesting point that occurs to us is that it 

 will show the amount of variation between seedlings from the same seed- 

 pod, a point which should be specially useful in the study of natural 

 hybrids, and especially so if the parents happen to grow together in a wild 

 state. O. X Adrianse has been crossed with O. crispum and O. X 

 Andersonianum, and it will be extremely interesting to see the result. We 

 may mention a few more of the crosses which we noted. O. Hunnewelli- 

 anum x Harryanum was germinating in profusion, also O. Pescatorei X 

 Harryanum, which is considered one of the most prolific of crosses. O. 

 Pescatorei x crispum aureum had only been sown three months, but were 

 already producing the first leaf, and a spotted form of the same crossed with 

 a blotched crispum may repeat the history of O. X ardentissimum. A dark 

 O. triumphans X luteopurpureum Vuylstekeanum should produce an 

 interesting hybrid, also O. nsevium X crispum Lehmanni. 



In the general collection we noticed many good capsules in various 

 stages, and some recently fertilised flowers, estimated at about a hundred in 

 all, and it is significant that most of the latter had been crossed with the 

 brilliant Cochlioda Ncetzliana, which is now likely to be in great demand 

 for hybridising. O. luteopurpureum Vuylstekeanum and O. crispum 

 Raymond Crawshay crossed with the Cochlioda should give some striking 

 results if seedlings are obtained. We must pass along to the 



ESTABLISHED PLANTS. 



The longest Odontoglossum house is computed to contain over 2,500 

 plants, and some good things were noted in flower. First may be mentioned 

 a large number of typical O. crispum, and these we learnt were from a batch 

 of imported plants, and most of them were to be sent away in a few days. 

 A process of selection is constantly being carried on, quantities of imported 

 plants being purchased and established, and when they bloom, those that 

 do not come up to the standard are at once disposed of, sometimes only a 

 very small percentage being retained. Others in bloom included a very 



