THE ORCHID REVIEW. 301 
them. To which I replied, O. Lindleyanum grows there, too, and it 
must be this, not O. sceptrum, which is the second parent. M. FI. 
Claes, also, has since told me that all three of these plants grow in the 
vicinity of Yarumal, in the Antioquia district, and there is no longer any 
reason for keeping the locality secret. O. Lindleyanum is well known to be 
a very widely diffused species. 
The following are the references to the literature of the subject :— 
O. X Wartianum, Rolfe in Gard. Chron., 1890, vii., p. 3543 Garden, 
1890, xxxvii., p. 416, t. 751; Retchenbachia, ser. 2, I, p. 19, t. 9; Journ. of 
Hort., 1895, XxXi., pp. 149, 159, fig. 22. 
R. A. ROLFE. 
(To be continued.) 
SOBRALIA CATTLEYA. 
‘HERE also is a large specimen of Sobralia Cattleya, whose long stems 
go on and on but never flower.”” The note appears in a recent account of 
the Right Hon. J. Chamberlain’s estate at Highbury (Gard. Chron., 1900, 
xxviii., p. 194), and drew a very interesting note from Mr. C. Woolford, 
The Priory, Isle of Wight, in a later issue (p. 231),. which we may repeat 
here :-—— 
“SoBRALIA CATTLEYA.—In your article on Highbury I was specially 
interested in the remarks on Sobralia Cattleya, as it is probably the same 
plant which I tried to flower, but without result. When I came to this 
place I found here a strong specimen of this species, and having the 
advantage of a warmer climate than that of Birmingham, I resolved to try 
out-door treatment during the summer for this plant. It was placed outside 
against a wall for three months, and from the middle of June it was slightly 
shaded from the sun during the warmest part of the day until the foliage 
became hardened. The treatment seemed to suit the plant, which has been 
proved by its starting vigorously from the base ; and these growths differed 
in some respects from those which grew under glass, as they formed at the 
base a bulb similar to what occurs in Cattleya Bowringiana, and this 
formation caused me to have great hopes of ultimate success. In the month 
of September the plant was put back into a house where Dendrobiums were 
resting, and kept for nearly six months without any water being afforded it, 
but no flowers came. I tried the same kind of treatment for three years, 
except that Veitch’s horticultural manure was applied during the summer, 
and the plant was not kept so dry during the winter, but I had no success. 
It would be interesting to know if any of your correspondents have tried 
out-door treatment for this kind of Sobralia.” 
Curiously enough, in 1893, Mr. White related a somewhat similar 
