Paph. callosum Primary Hybrids
| Paph callosum (capsule) X Paph acmodontum = Paph Virginia Moffett 1977 |
| Paph callosum (capsule) X Paph adductum = Paph Victor Tymoshuk 1997 |
| Paph callosum (pollen) X Paph appletonianum = Paph Siamense |
| Paph callosum (pollen) X Paph argus = Paph Calloso-Argus 1893 |
| Paph callosum (pollen) X Paph barbatum = Paph Calloso-barbatum 1890 |
| Paph callosum (pollen) X Paph bellatulum = Paph Wottonii 1896 |
| Paph callosum (pollen) X Paph boxallii = Paph J Bartels 1894 |
| Paph callosum (capsule) X Paph chamberlainianum = Paph Alcippe 1898 |
| Paph callosum (capsule) X Paph charlesworthii = Paph Rosita 1901 |
| Paph callosum (capsule) X Paph ciliolare = Paph Zeus 1894 |
| Paph callosum (pollen) X Paph concolor = Paph Conco-callosum 1895 |
| Paph callosum (capsule) X Paph curtisii = Paph Goultenianum 1894 |
| Paph callosum (capsule) X Paph dayanum = Paph Callo-day 1967 |
| Paph callosum (capsule) X Paph delenatii = Paph Madame Martinet 1932 |
| Paph callosum (capsule) X Paph druryi = Paph A R Smith 1896 |
| Paph callosum (capsule) X Paph exul = Paph Doctor Conway 1902 |
| Paph callosum (capsule) X Paph exul = Paph Dr Conway 1902 |
| Paph callosum (capsule) X Paph fairrieanum = Paph Juno 1891 |
| Paph callosum (capsule) X Paph glaucophyllum = Paph James Fisher 1974 |
| Paph callosum (capsule) X Paph godefroyae = Paph Felix Faure 1895 |
| Paph callosum (capsule) X Paph hennisianum = Paph Ozette Lake 1996 |
| Paph callosum (capsule) X Paph hirsutissimum = Paph Doncasterianum 1894 |
| Paph callosum (capsule) X Paph hookerae = Paph Fortuna 1896 |
| Paph callosum (capsule) X Paph insigne = Paph Leoniae 1893 |
| Paph callosum (capsule) X Paph javanicum = Paph Java 1921 |
| Paph callosum (capsule) X Paph lawrenceanum = Paph Maudiae 1900 |
| Paph callosum (capsule) X Paph linii = Paph Spook 1973 |
| Paph callosum (capsule) X Paph mastersianum = Paph Pytho 1897 |
| Paph callosum (capsule) X Paph micranthum = Paph Maria Glanz 1993 |
| Paph callosum (capsule) X Paph niveum = Paph Winifred Hollington 1894 |
| Paph callosum (capsule) X Paph philippinense = Paph Millmanii 1895 |
| Paph callosum (capsule) X Paph praestans = Paph Hama Callomii 1983 |
| Paph callosum (pollen) X Paph primulinum = Paph Dollina 1995 |
| Paph callosum (pollen) X Paph purpuratum = Paph Cosmopolitan 1993 |
| Paph callosum (capsule) X Paph robinsonii = Paph Alisal 1974 |
| Paph callosum (capsule) X Paph rothschildianum = Paph Callo-Rothschildianum 1897 |
| Paph callosum (capsule) X Paph sanderianum = Paph Princess May 1895 |
| Paph callosum (capsule) X Paph spicerianum = Paph Mademoiselle Gabrielle Moens 1893 |
| Paph callosum (capsule) X Paph spicerianum = Paph Mlle Gabrielle Moens 1893 |
| Paph callosum (capsule) X Paph stonei = Paph Fordianum 1895 |
| Paph callosum (capsule) X Paph sukhakulii = Paph Montagnard 1975 |
| Paph callosum (capsule) X Paph superbiens = Paph Catherine (Mousettianum) 1894 |
| Paph callosum (capsule) X Paph superbiens = Paph Moussetianum 1894 |
| Paph callosum (capsule) X Paph tonsum = Paph Felicity 1902 |
| Paph callosum (capsule) X Paph urbanianum = Paph Curb Setter 1990 |
| Paph callosum (capsule) X Paph venustum = Paph Orpheus 1891 |
| Paph callosum (capsule) X Paph villosum = Paph Indra 1893 |
| Paph callosum (capsule) X Paph violascens = Paph Olaf Gruss 1992 |
| Paph callosum (pollen) X Paph wardii = Paph Pierre Bertaux 1994 |