Table 1.

The Paphiopedilum species used for interspecific crosses

Species	Subgenus*	Section*	2n	Karyomorphology†
				V‡	I§
P. delenatii	Parvisepalum	–	26	26	–
P. micranthum	Parvisepalum	–	26	26	–
P. bellatulum	Brachypetalum	–	26	26	–
P. rothschildianum	Paphiopedilum	Coryopedilum	26	26	–
P. callosum	Paphiopedilum	Barbata	32	20	12
P. glaucophyllum	Paphiopedilum	Cochlopetalum	36	14	22
P. moquetteanum	Paphiopedilum	Cochlopetalum	34	16	18

* The taxonomic system follows Cribb (1998).

^† Data adapted from Karasawa and Saito (1982).

^‡ Metacentric chromosome.

^§ Telocentric chromosome.