(Sophronitis < Cattleya), Zygocolax (Zygopetalum X 
Colaw), Anoectomaria (Anoectochilus X Haemaria), 
Macomaria (Macodes < Haemaria) and Dossinimaria 
(Dossinia < Haemaria). He again employed this same 
principle in ‘‘The Orchid Stud-Book’’, published in 
1909, in which names of trigeneric origin are also 
included. 
In 1910, during the International Horticultural Con- 
gress in Bruxelles, much attention was paid to the prob- 
lem of orchid hybrid nomenclature. It was resolved that 
bi- and trigeneric names were to be compounded from 
the parental generic names, while quadrigeneric names 
were to be named for some person distinguished in either 
botany or horticulture, and that the suffix ‘‘-ara’’ be at- 
tached to the name of the person so honored. Further- 
more, it was resolved that ‘‘-ara’’ ending may be applied 
also to trigeneric hybrids. Kxamples given were ADAM- 
ARA (Brassavola X Laelia X Cattleya * Epidendrum) 
and LINNEARA (Diacrium < Cattleya X Brassavola X 
Laelia). 
Due to the increased numbers of hybrids, F. Sander 
published, in 1901, his first *‘Sander’s Orchid Guide’’, 
in which all species as well as natural and artificial hy- 
brids known in cultivation up to that date were listed. 
This book was superceded in 1915 by Sander and Sons’ 
‘‘Orchid Hybrids’’, which has seen several revised edi- 
tions as well as supplementary volumes. Following San- 
der’s publication, lists of new orchid hybrids were issued 
periodically in ‘‘The Gardners’ Chronicle”’ until 1922, 
but since that date such lists have been printed monthly 
in ‘‘The Orchid Review”. 
The registration of new hybrids was first privately 
undertaken by Sander’s Company, and in 1960, during 
the Third World Orchid Conference, this responsibility 
was transferred to the Royal Horticultural Society. 
[ 142 ] 
