| Dieffenbachia killipii Croat | T. B. Croat 76666 | Panama. Coclé. Vicinity el Valle de Antón, at forested flat area near Finca Macarenita at La Mesa. | | 03780550 |  |
| Dieffenbachia killipii Croat | T. B. Croat 77048 | Panama. Panamá. Along road between El Valle de Madraño and La Saena, 2.5 mi N of El Valle de Madroño, 3.5 mi N of turn-off To San José, 11.6 mi N of Las Margaritas, (vicinity of Chepo, in valley of Río Mamoni. | | 03780552 |  |
| Dieffenbachia oerstedii Schott | T. B. Croat 77201 | Panama. Coclé. Vicinity El Copé, 5-6 mi N of El Copé, along trail which leads into the lowlands from old Riviera saw works area. | | 3780556 |  |
| Dieffenbachia crebripistillata Croat | T. B. Croat 68746 | Panama. Coclé. Alto Calvario above El Copé, ca. 6 km N of El Copé; atlantic slope, along trail which leads W off old lumber trail which leads down to Las Ricas, Limón and San Juan. | | 03780544 |  |
| Dieffenbachia fortunensis Croat | T. B. Croat 69070 | Panama. Bocas del Toro. Prov. Cerro Colorado: 9.2 mi W of Chamé; along trail E of road which leads down to stream. | | 03780545 |  |
| Dieffenbachia panamensis Croat | T. B. Croat 74856 | Panama. Coclé. 4.1 mi. N of village in vicinity along road which leads down into lowlands, straight ahead of the end of the sawmill grounds. | | 03780564 |  |
| Dieffenbachia crebripistillata Croat | T. B. Croat 35951 | Panama. Middle slopes of Cerro Campana, ca.1 mile from Interamerican Highway. | | 03780543 |  |
| Dieffenbachia tonduzii Croat & Grayum | T. B. Croat 66533 | Panama. Chiriquí. Vicinity of Fortuna Dam in valley of Río Chiriquí; along aquaduct to water source for IRHE facilities at dam. | | 3780566 |  |
| Dieffenbachia seguine (Jacq.) Schott | T. B. Croat 53956 | Venezuela. Miranda. Cerros del Bachilleros; 5.5 km S of village Santa Cruz on Hwy 9 between Guatire (E of Caracas) and Cúpira, mature virgin forest. | | 3780593 |  |
| Dieffenbachia seguine (Jacq.) Schott | M. J. Jansen-Jacobs 5950 | Guyana. Upper Essequibo Region, Rewa River, Spider Mountains. | | 04158244 |  |
| Dieffenbachia bolivarana G.S.Bunting | B. M. Boom 8837 | Guyana. Upper Potaro River region, vicinity of village of Kopinang. | | 3780572 |  |
| Dieffenbachia parlatorei Linden & André | G. S. Bunting 2406 | Venezuela. Mérida. Carretera El Vigía- San Cristóbal del Táchira, 9 kms. al suroeste de El Vigía y El Quince, en barranca silvestre. | | 3780586 |  |
| Dieffenbachia bolivarana G.S.Bunting | L. C. M. Croizat 750 | Venezuela. Salto Rojas. | | 3780570 |  |
| Dieffenbachia killipii Croat | G. A. Tipaz 72573 | Ecuador. Napo. Along road between Coca and Río Tiguino, straight S of Coca, 85.8 km S of Coca and bridge over Río Napo, near drilling site. | | 03780579 |  |
| Dieffenbachia tonduzii Croat & Grayum | T. B. Croat 83889 | Ecuador. Esmeraldas. Along road to Río Tulubí from main San Lorenzo- Lita hwy., 33.0 Km E of Gasolintera San Lorenzo at edge of San Lorenzo, along Río San José, 1.1 Km N of main hwy. | | 03780598 |  |
| Dieffenbachia tonduzii Croat & Grayum | T. B. Croat 82441 | Ecuador. Esmeraldas. Lita-San Lorenzo Road, 1.2 km W of El Durago, 21.1 km W of Alto Tambo. | | 03780596 |  |
| Dieffenbachia tonduzii Croat & Grayum | J. Rodríguez B. 250 | Ecuador. Pichincha. Reserva Forestal Endesa, Río Silanche: "Corporación Forestal Juan Manuel Durini", km 113 de la carreteral Quitop Pto. Quito, faldas occidentales, a 10 km al Norte de la carretera principal. | | 03780597 |  |
| Dieffenbachia longispatha Engl. & K.Krause | P. M. Peterson 6892 | Panama. Bocas del Toro. Isla San Cristobal (Distr.). One cove N of Trouble Hole. | | 03780554 |  |
| Dieffenbachia longispatha Engl. & K.Krause | P. M. Peterson 6973 | Panama. Bocas del Toro. Approximately 3.5 km S of Tiger Key on the mainland. | | 03780553 |  |
| Dieffenbachia parvifolia Engl. | T. C. Plowman 13673 | Venezuela. Amazonas. Río Negro Mun. Environs of Neblina Base Camp along Río Baria (Río Mawarinuma). | | 03780591 |  |