JUNE, 1923.| 
THE ORCHID REVIEW. 177 
that win the much coveted certificates of recognition. It is often a 
question as to whether some flowers have not been deprived of their beauty 
by over development in this respect. 
In Odontoglossums the crest at the base of the labellum is well worthy 
LABELLUM OF 
ODONTOGLOSSUM HALLI. 
of study, for it varies from the simple tooth-like 
structure seen in O. crispum to the complicated 
spiny structure of O. Halli and O. luteopurpureum. 
This crest is almost invariably of a yellow colour, 
In O. Rossii it is especially bright, and in O. 
cirrhosum the same colour is visible, so much so- 
that it has been used-in the production of hybrids. 
having a conspicuously yellow-coloured centre. 
Brassavola Digbyana has the margin of the 
lip developed to an extraordinary degree, a charac- 
ter that has made it a very attractive subject with 
the hybridists. When combined with its closely 
related genera, such as Lelia, Cattleya and Sophro- 
nitis, this beautiful fringe is invariably perpetuated, 
and hybrids of B. Digbyana are to be seen in 
every collection where warm- 
house Orchids are cultivated. 
Dendrobium Brymerianum 
affords another example of 
the labellum being conspic- 
uously fringed. It is a re- 
grettable fact that thiselegant 
species does not lend itself 
more to the production of 
hybrids, for success has only 
been achieved: in some three 
or four crosses. One can 
only hope that with the much 
Improved methods of seed- 
raising now in use further 
attempts will be made, for 
there seems a good field 
open for combining the rich 
golden colour of this deeply 
fringed flower with other 
favourite members of the 
genus. 
DENDROBIUM BRYMERIANUM. 
(To be continued.) 
