more crowded; the scape shorter, the flower rather smaller than those of the 
typical form. The general colouring is similar to that of the Nepal plant, but the 
white margin of the standard is broader, and runs right down to the base; the 
purple spots are crowded into the middle of the bright apple green centre. The 
petals and lip resemble much those of the Indian forms, but the lip is more yellow. 
The shield is different in shape : instead of being cordate, with a notch in the 
apex, it is almost ovate, with, at the most, a depression at the top. ” 
The differences which strike me most in the Siamese plant, in addition to the 
different habit, already pointed out, are : the shorter scape, with smaller flower, 
of rather more rigid texture; the less undulate dorsal sepal, with the regular white 
margin all round, and the darker spots confined to the centre of the basal half, 
where are also a number of darker green lines; the connate lateral sepals consi- 
derably larger than the lip; the shorter petals, distinctly spotted at the base ; the 
smaller, stouter lip, which, like the petals, is more yellow in colour, and very 
glossy; the smaller staminode, and, lastly, the different season of the year when 
the flowers are produced. Although the dorsal sepal and the central boss of the 
staminode bear some resemblance to C. insigne (the latter character also applicable 
to C. villosum and its variety Boxallii), yet the lip is equally near to that of 
C. Drury, while in general habit it is much nearer to the last named. All things 
considered, I think it entitled to rank as a distinct species, for which the name 
of C. exul may be retained. 
The variety Imschootianum, here figured, has all the essential characters of 
the above, but there are a few differences which may be sufficient to justify the 
varietal name, though it is too early to say what variations may appear when 
the imported plants become established in cultivation. The scape is green, more 
slender, and about six inches high; the bract not half as long as the ovary; the 
white margin of the dorsal sepal narrower; the lateral sepals narrower; the petals 
narrower, with much narrower brown band, and white tips. It should be pointed 
out, however, that some of these characters may not prove constant when the 
plant becomes fully established. They have been kindly noted for me by 
M' J. Weatuers, Assistant Secretary, Royal Horticultural Society, from a plant 
exhibited by Messrs LinpEn, at a meeting of that Society on April 12 th. last. 
It is dedicated to M. ALrrep Van Imscuoor, of Ghent. A plant was exhibited 
by Messrs LinpEN at the March meeting of the ORCHIDEENNE, when it was awarded 
a First-class Diploma of Honour, unanimously and by acclamation. 
From its Siamese habitat I should infer that the plant will require more heat 
than C. insigne and its varieties, and should be grown with C. villosum and its 
allies. R. A. Rotre. 
Since the above was in type the species has been described by Mr J. O’Brien 
under the same name as I had proposed for it. I have been able to add this 
reference, but the text remains unchanged. RAGS. 
