published March 25, 2013
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Orchid Hybrid Trivia
The total number of grex names in the register is currently 154,660 (as of now). This figure increases daily. Each year The International Orchid Register adds between 3000-4000 new hybrids.
The most popular genera for hybrids are:
So far there are about 2349 hybrid generic names, but not all of these are in use.
Phalaenopsis — 31,382
Paphiopedilum — 23,871
Cymbidium — 14,688
Dendrobium — 11,910
There are about 5,600 species involved in hybridization.