Paphiopedilum bougainvilleanum
Paphiopedilum bougainvilleanum is a species of orchid endemic to New Guinea. Description 
Its leaves span 30-35 centimeters. Taxonomy 
It was named by Fowlie, in Orchid Digest 35: 122. in 1971. References

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bougainvilleanum
Orchids of Borneo