100 THE ORCHID REVIEW. (APRIL, 1916, 
Attempts to cross the nobile group with large-flowered or brilliantly- 
coloured species of other selections have seldom succeeded, and there: is an 
incompatibility between the constitutions of such diverse plants that often 
spoils the results. It is certainly desirable to experiment, but in view of 
the immense number of failures, many of which are seldom heard of, too 
much cannot be expected of them. The greater the number of diverse 
characters possessed by any pair of species which it is sought to unite the 
smaller seems to be the hope of success. 
A few additional flowers and notes were sent after the above was in type. 
Two forms of D. chessingtonense (aureum x Wiganiz) from the same seed 
pod are remarkable, one being deep orange-yellow with a maroon blotch on 
the disc, the other a beautiful ivory white with a very dark disc. Of two 
forms of D. Ceres (Wiganianum-X Melpomene) one is cream yellow with 
light yellow disc, the other has pink tips, and the lip orange yéllow with a 
blackish maroon disc. Of two forms of D. Duchess of Albany (Wiganiz X 
Wiganianum) the smaller is light sulphur yellow, the larger white, flushed 
with pink, and both with a light rose blotch on the disc. D. viridescens 
(Wiganianum xX aureum album) is a small white with a greenish yellow 
disc. D. Princess Patricia of Connaught (Wig 
Rubens Euryalus) is a charming thing, the segments light below and rose- 
purple above, and the lip pale sulphur with rose-purple disc. D. Golden- 
Ray (signatum x Rubens) is a beautiful yellow, with a large maroon blotch 
on the disc.. D. Mrs. Alfred Rogers (Findlayanum x Hildebrandii), a form 
of D. Boundii, is white witha large yellowdisc. D. nobile nobilius x signatum 
gives an improved D. Wiganiz, the segments well flushed with rose, and 
the centre of the lip orange-yellow with a dark disc. And, by the way, Sit 
Jeremiah remarks that he has nearly always used D. nobile nobilius in his 
own crosses, which would account for size, substance, and colour. The 
other flowers (there were twenty in all) have been already mentioned, but 
we may conclude with the following remarkably fine hybrid :— 
D. GatTon-D1aMonD, a beautiful white, with an expanse of 4} inches 
from tip to tip of the petals, and a circular, bright rose-purple, slightly 
feathered blotch on the light yellow lip. Its descent is thus expressed :— 
purpureum X 
aureum X nobile nobilius. 
Findlayanum x Ainsworthii splendissimum. signatum x nobile. 
melanodiscus Salteri x Wiganiz splendens. 
Gatton Diamond. 
It most resembles an enlarged D. Ainsworthii with a reduced disc and 4 
suffusion of yellow round it. D. nobile occurs twice in the ancestry, yet its 
colour is practically eliminated, and D. signatum is little in evidence, but 
probably other seedlings from the same batch willl be quite different. 
