APRIL, 1907.] THE ORCHID REVIEW. ' IOl 
mobile, but could not possibly be mistaken for that species. Besides those 
sent (and each flower is froma different plant), we have flowered two or 
‘three dozen similar, and also one pure white variety with a dark eye, which, 
like the exception sent, may be regarded as a “ sport,” whatever that may 
be, but does not support any law of reversion. 
The other flowers sent are interesting as showing that a white hybrid 
“sport ’’ and a white species crossed together do not yield white seedlings, 
or have not done so in this case. The flowers are cut from seedlings 
resulting from the crossing of D. X Wiganianum album with D. nobile 
virginale. D. X Wiganianum album is a white sport out of a number ot 
seedlings from D. Hildebrandii x D. nobile albiflorum, both of which 
plants have a fair amount of colour. You will see that all the flowers sent 
are more or less delicately tinted, but none of them could be taken for 
D. ncbile, although there is three-quarter nobile in their composition, nor 
yet could any of them be mistaken for D. Hildebrandii, although I will 
admit that some of them merge closely to some of the varieties of D. x 
Wiganianum. It will be fair to add that D. X Wiganianum album has 
‘two faint lines of colour deep in the throat, and could not therefore be 
strictly called a pure albino. We were nevertheless expecting to get some 
‘white seedlings from it, and have been in consequence disappointed. We 
-have, as you know, already raised D. nobile virginale true from seed. 
I also enclose a few flowers derived from D. nobile Ballianum x D. n. 
murrhiniacum, which have reverted to ordinary coloured D. nobile. It is 
interesting, though sad to us, to know that ordinary coloured D. nobile 
-comes from the crossing of two such closely allied pale varieties, both of 
which have lost the dark maroon disc which is such a conspicuous feature 
in ordinary .D. nobile. 
Streatham. as M. Back. 
The D. x Wiganiz seedlings sent are twelve in number, and eleven of 
‘them would certainly be taken for D. X Wiganiz, pure and simple, the 
variation being confined to slight differences in size, in the depth of the 
yellow colour, and in the size of the maroon blotch. The palest is nearly 
ivory white. The one exception is a little larger, and has a whitish ground 
colour, suffused with light rosy purple at the apex and margin of all the 
segments. The lip is also slightly more acute, but the blotch is quite of 
the D. X Wiganiz type. 
Of the cross D. X Wiganianum album X D. nobile virginale there are 
twenty-two seedlings, ranging from blush white to rosy lilac in the sepals 
.and petals, and all without a maroon blotch on the lip, but in each case 
there are radiating pink streaks on either side of the fleshy area at the 
extreme base, and these vary considerably in size anda little incolour. All 
