| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Philodendron callosum K.Krause subsp. callosum | W. C. Steward 20318 with J. F. Ramos & O. P. Monteiro, 17 Feb 1974 | Brazil. Amazonas. Manaus-Caracaraí Highway. Forest at km 130. | 01073928 |  | |
| Philodendron callosum K.Krause subsp. callosum | J. M. Pires 50510 with Wm. Rodrigues, G. C. Irvine, 26 Aug 1961 | Brazil. Amapá. Rio Araguari. | 01073929 |  | |
| Philodendron callosum K.Krause subsp. callosum | J. M. Pires 50510 with Wm. Rodrigues, G. C. Irvine, 26 Aug 1961 | Brazil. Amapá. Rio Araguari. | 01073931 |  | |
| Philodendron callosum K.Krause subsp. callosum | J. M. Pires 50897 with Wm. Rodrigues, G. C. Irvine, 13 Sep 1961 | Brazil. Amapá. Rio Araguari. | 01073927 |  | |
| Philodendron callosum K.Krause subsp. callosum | N. A. Rosa 1822 23 Apr 1977 | Brazil. Amapá. Munguba a 2 km da Perimetral Norte. | 01073930 |  | |
| Philodendron callosum K.Krause subsp. callosum | B. Maguire 33227 | Venezuela. Ilu-tepui, Gran Sabana. Savanna between Uarupata and Enamasic. | 03782679 |  | |
| Philodendron callosum K.Krause subsp. callosum | J. A. Steyermark 106606 | Venezuela. Bolívar. La Gran Sabana: alrededores de km 190 al sur de El Dorado, vía Santa Elena de Uairen. | 03782680 |  |