Juy, 1915.} THE ORCHID REVIEW. 205 
First-class Certificate from the R.H.S.in March, 1876. The ground colour 
is white, and Reichenbach called the plant O. crispum var. Chestertonil. 
The writer called it O. Denisoniz var. Chestertonii, on the ground ‘that it 
was partly derived from O. luteopurpureum. It was then thought that O. 
Denisonize was a hybrid between O. crispum and luteopurpureum, jbut 
artificial hybrids between the two latter do not yield identical hybrids, and 
it is now believed that O. Denisoniz is a secondary hybrid of the same 
origin as O. mirum. The crossing of O. crispum and luteopurpureum 
yields yellow hybrids with brown spots, reproducing the natural hybrid O. 
Fie. 28. OpONTOGLOSSUM CORADINE] MIRABILE. 
(? Lindleyanum x crispum.) 
Wilckeanum, though Mr. Crawshay admits having seen two with white 
grounds, and it is doubtful whether Chestertonii represents the primary cross. 
The original O. Wilckeanum albens is represented in fig. 26 (p. 203), 
and this, too, is of uncertain origin. Mr. Crawshay has collected its history 
(O.R., xv. p. 217). It appeared in an importation of O. crispum with 
M. Ch, Vuylsteke, about 1885, and part of it afterwards came to England, 
receiving - First class Certiticate from the R.H.S. in February, 1887, under 
-dinum. A division of the plant was’ figured 
— 
the name of O. crispum’ leop: 
