a8 THE ORCHID REVIEW. 
terminal appendage, which is concave underneath, and seems to be specially 
provided for the protection of the gland of the pollinia. Nothing of this 
kind is found in Peristeria. The re-appearance of the plant after so long 
an interval is very interesting. Mr. Marshall’s plant has probably not yet 
reached its normal development. 
R.A. Ke 
CYPRIPEDIUM KIMBALLIANUM. 
A fine Cypripedium is figured under the above name in a recent issue of 
the Gardeners’ Chronicle (June 29, pp. 800, 801, fig. 125), where the note 
appears that it is “‘ supposed to be a hybrid between C. Rothschildianum 
and C. Dayanum ’’—a natural hybrid being intended. It will therefore be 
interesting to complete the history of the plant. It is in reality C. prestans, 
Rchb. f. (Gard. Chron., 1886, il. p. 776), a New Guinea species introduced 
by Messrs. Linden. It was afterwards figured in Lindenia (vi., t. 249) as 
variety Kimballianum, and ultimately became C. Kimballianum, through 
the omission of the specific name.. When Cypripedium Rothschildianum 
was introduced by Messrs. Sander it was recorded as a native of New 
Guinea, and Messrs. Linden immediately stated that it was identical with 
C. neoguineense, which they had previously introduced. A flower from a 
plant purchased as one of the latter was afterwards submitted to us, and 
was certainly C. prestans, as was also one of C. Kimballianum from 
another source. It has also been re-described as C. Gardineri, Guillemard, 
and confused with C. glanduliferum, Blume, another New Guinea species 
not in cultivation. The next thing is that C. Rothschildianum is not from 
New Guinea at all, but from Borneo. It is not a little curious that a New 
Guinea species should have to do duty as a natural hybrid between two 
Bornean ones, but after the above confusion one is prepared for almost 
anything, and the least we can do is to thus attempt to put matters 
straight. 
DENDROBIUM x RHODOPTERYGIUM. 
Information respecting the above rare Dendrobium has come to hand 
very slowly, but its hybrid origin is now fully established. It was found by 
Mr. Boxall, in Moulmein, in 1874, and sent to Messrs. Hugh Low & Co., 
being described by Reichenbach in the following year as a species (Gard. 
Chron,, 1875, i., p. 684). Twelve years later D. x polyphlebium was 
described (l.c., 1887, i., p. 702). It flowered in the collection of 
E. G. Wrigley, Esq., Howick House, Preston, who had obtained it from 
the Liverpool Horticultural Co. as a natural hybrid. Reichenbach thought 
the guess a good one, and suggested D. Pierardii and D. rhodopterygium as 
