206 THE ORCHID REVIEW. 
that its flowers are purple-tinted, and the lip divisions narrower. The 
flower stems are dark-coloured th gh and, in 1 , Show up 
the white bracts distinctly, and thus it resembles D. indivisum. In the 
other the peduncles are green. The sheathing leaf base has purple lines, 
the white form green ones. D. indivisum, growing beside its ally, 
presents a miserable comparison; its puny white flowers are quickly 
followed by seed-pods. D. bicornutum is a feature of Government House 
Grounds during the early months of the year, when its flowers expand in 
large numbers.” 
CYPRIPEDIUMS NIGRITUM, VIRENS, AND DAYANUM. 
SOME very interesting information has come to light respecting these three 
species. The history of C. nigritum was given at page 79, and shortly 
afterwards it also flowered in the collection of O. O. Wrigley, Esq., Bridge 
Hall, Bury, out of a batch of imported Bornean Cypripediums purchased 
from Messrs. Hugh Low & Co. And now both C. Dayanum and C. virens 
have flowered out of the same lot, thus affording evidence, as Mr. Wrigley 
very well points out, that the three grow together. The leaves of C. 
nigritum and C. virens resemble each other so closely as to be almost i 
distinguishable, and out of flower the two might be gathered as a single 
species, but those of C. Dayanum are much more strongly tessellated. 
C. virens appeared as a single plant among an importation of Cyprii 
from North Borneo, in 1858, made by Messrs. Hugh Low & Co., from 
whom it was acquired shortly afterwards by the late Mr. John Day, of 
Tottenham. It is nearly allied to the Javan C. javanicum, and, indeed, § 
sometimes considered as a variety of it. It is, however, a distinct ge 
graphical form. 
C. Dayanum was discovered on Mount Kina Balu, in north-east Borne 
by Mr. (now Sir Hugh) Low, who sent it with some pitcher plants to the 
nursery of Messrs. Hugh Low & Co., at Clapton, from whom Mr. Day, 
Tottenham, acquired the box containing the entire stock of both. A few 
the Cypripedium only survived, and one of them flowered in the summef 
1860. It remained very rare in gardens until 1879, when Messrs Por 
Veitch and F, W. Burbidge again obtained it in the same region, 
collecting for Messrs, James Veitch & Sons. ; 
The above facts are interesting, especially in connection with the 
formation respecting natural hybrids in the genus which has recently - 
to hand, and, considering how little is known of the conditions under which 
these plants grow, it is advisable to place them on record. 
R, AOR 
