The Paphiopedilum bullenianum Complex
The Paph. callosum Complex – a historical review
the "real" Paph. superbiens
Paph. gratrixianum vs Paph. christensonianum
New: Paphiopedilum x mittrachianum
Paph. kolopakingii vs Paph. platyphyllum
Paph. kolopakingii vs Paph. topperi
