| Pachygenium albicans (Cogn.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium aphyllum (Vell.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium arrabidae (Rchb.f.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium bonariense (Lindl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium burgeri (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium collocaliae (Szlach.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium comosum (Cogn.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium dolichorhizum (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium ekmanii (Kraenzl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium fiebrigii (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium hirtum (Lindl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium hysteranthum (Barb.Rodr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium itatiayae (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium laminatum (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium loefgrenii (Porsch) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium longibracteatum (Pabst) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium longifolium (Cogn.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium luetzelburgii (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium luetzenburgii (Schltr.) Szlach., R. González & Rutk. | 
		Accepted | 
		  | 
		TRO | 
	
	
		| Pachygenium minarum (Kraenzl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium oestriferum (Rchb.f. & Warm.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium orobanchoides (Kraenzl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium orthosepalum (Rchb.f. & Warm.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium ovatifolium (M.N.Correa) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium paludosum (M.N.Correa) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium paraguayense (Garay) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium parvum (Cogn.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium phallocallosum (R.J.V.Alves) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium pteryganthum (Rchb.f. & Warm.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium robustum (Kraenzl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium saltense (Griseb.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium sceptrum (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium sheviakii (Szlach.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium tamanduense (Kraenzl.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium tenuior (Schltr.) Szlach., R. González & Rutk. | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Pachygenium tenuius (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium vaginatum (Schltr.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium ventricosum (Cogn.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium viride (Cogn.) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium yungasense (Rolfe) Szlach., R.González & Rutk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Pachygenium yungasensis (Rolfe ex Rusby) Szlach., R. González & Rutk. | 
		Synonym | 
		  | 
		TRO |