Smithsonian National Museum of Natural History

Dieter Wasshausen

Research Botanist Emeritus
Department / Division
Education
  • BS (1962), MS (1965), PhD (1972), The George Washington University
Research Interests

Systematics of the Neotropical Acanthaceae, including treatments of the family for the Flora of Peru, Ecuador and Bolivia; Palynology and reproductive biology of tropical Acanthaceae; Floristic studies in the family Begoniaceae, preparation of diagnostic keys and descriptions for species in Guianas, Brazil and Peru.

Publications
  • Cornejo, Xavier, Wasshausen, Dieter C., and Bonifaz, Carmen. 2017. "Dicliptera francodavilae (Acanthaceae): A New Species from the Coastal Dry Forests of the Province of Guayas, Ecuador." Harvard Papers in Botany 22 (2): 121– 123. https://doi.org/10.3100/hpib.v22iss2.2017.n4
  • Wasshausen, Dieter C. 2015. "New Species of Acanthaceae from Ecuador." Journal of the Botanical Research Institute of Texas 9 (1): 81– 88.
  • Wasshausen, Dieter C. 2013. "New species of Aphelandra (Acanthaceae) from Peru and Ecuador." Journal of the Botanical Research Institute of Texas 7 (1): 109– 120.
  • Wasshausen, Dieter C. 2013. "Acanthaceae." in Flora of Ecuador, edited by Persson, C. and Stahl, B., 1– 328. Goteborg, Sweden: Department of Biological and Environmental Sciences, University of Gothenburg.
  • Wasshausen, Dieter C. 2012. "Acanthaceae." in Flora de Antioquia: Catalogo de las Plantas Vasculares, edited by Idarraga, A., Carmen-Ortiz, R. del, Callejas, R., and Merello, M., 225– 233. Bogota, Colombia: Universidad de Antioquia.
  • Dorr, Laurence J. and Wasshausen, Dieter C. 2007. "Begoniaceae." in Catálogo anotado e ilustrado de la flora vascular de los Llanos de Venezuela, edited by Duno de Stefano, R., Aymard, G., and Huber, O., 387– 389. Caracas, Venezuela: FUDENA-Fundación Empresas Polar-FIBV.
  • Wasshausen, Dieter C. 2007. "A checklist of the Acanthaceae collected in the "Sira mountains" of Peru." Die Annalen des Naturhistorischen Museums in Wien, Serie B 108B: 167– 190.
  • Wasshausen, Dieter C. 2007. "Mendoniaceae." in Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana), edited by Funk, Vicki Ann, Hollowell, Thomas H., Berry, P. E., Kelloff, Carol L., and Alexander, Sara N., 419– 420. Washington D. C.: Smithsonian Institution.
  • Wasshausen, Dieter C. 2006. "159. Mendonciaceae." Flora of the Guianas: Series A: Phanerogams 23: 142– 151.
  • Wasshausen, Dieter C. 2006. "156. Acanthaceae." Flora of the Guianas: Series A: Phanerogams 23: 1– 141.
  • Wasshausen, Dieter C. 2005. "Chapter 5.6 Acanthus: Family Acanthaceae." in Plant conservation: A natural history approach, edited by Krupnick, Gary A. and Kress, W. John., 112– 114.
  • Wasshausen, Dieter C. and Rauh, W. 2005. "Chapter 6.3 Habitat loss: the extreme case of Madagascar." in Plant conservation: A natural history approach, edited by Krupnick, Gary A. and Kress, W. John., 151– 155.
  • Wasshausen, Dieter C. 2004. "Acanthaceae." in Flowering Plants of the Neotropics, edited by Smith, N., Mori, S. A., Henderson, A., Stevenson, D. W., and Heald, S. V., 3– 7.
  • Wasshausen, Dieter C. and Wood, R. I. 2004. "Acanthaceae of Bolivia." Contributions from the United States National Herbarium 49: 1– 152.
  • Wasshausen, Dieter C. and Wood, R. I. 2004. "Notes on the genus Dicliptera (Acanthaceae) in Bolivia." Proceedings of the Biological Society of Washington 117: 140– 149.
  • Wasshausen, Dieter C. 2003. "New species of Justicia (Acanthaceae) from the Guianas." Brittonia 54 (4): 286– 297.
  • Wasshausen, Dieter C. and Wood, R. I. 2003. "Notes on the genus Justicia in Bolivia." Kew Bulletin 58: 769– 831.
  • Wasshausen, Dieter C. and Wood, R. I. 2003. "The genus Dyschoriste (Acanthaceae) in Bolivia and Argentina." Brittonia 55 (1): 10– 18.
  • Wasshausen, Dieter C. and Wood, R. I. 2003. "Notes on the genus Ruellia (Acanthaceae) in Bolivia, Peru and Brazil." Proceedings of the Biological Society of Washington 116 (2): 263– 274.
  • Golding, J. and Wasshausen, Dieter C. 2002. "Begoniaceae, Edition 2. Part I: Annotated Species List. Part II: Illustrated Key, Abridgement and Supplement." Contributions from the United States National Herbarium 43: 1– 289.
  • Wasshausen, Dieter C. 2002. "New species of Ruellia (Acanthaceae) from French Guiana and adjacent Brazil." Proceedings of the Biological Society of Washington 115 (3): 696– 700.
  • Wasshausen, Dieter C. and Wood, R. I. 2001. "Further discoveries in the genus Stenostephanus (Acanthaceae) in Bolivia." Harvard Papers in Botany 6 (2): 449– 454.
  • Wasshausen, Dieter C. 2000. "A new species of Justicia (Acanthaceae) from Venezuela." Novon 10: 260– 263.
  • Smith, S. F. and Wasshausen, Dieter C. 1999. "New taxa in Begonia (Begoniaceae) from Brazil." Selbyana 20: 16– 29.
  • Wasshausen, Dieter C. 1999. "The genus Stenostephanus (Acanthaceae) in Bolivia." Harvard Papers in Botany 4: 279– 288.
  • Wasshausen, Dieter C. 1999. "New species of Justicia(Acanthaceae) from Cerro La Chapa, El Amparo, Venezuela." Novon 9: 450– 452.
  • Peichoto, M. C., Ezcurra, C., and Wasshausen, Dieter C. 1998. "Justicia floribunda (Acanthaceae), nueva combinación y nueva cito para la flora Argentina." Darwiniana 35: 151– 154.
  • Wasshausen, Dieter C. 1998. "Acanthaceae of the Southeastern United States." Castanea: The Journal of the Southern Appalachian Botanical Society 63: 99– 116.
  • Wasshausen, Dieter C. 1998. "Acanthaceae." in Prodr. fl. Matogrossensis Ser. B, part 1. Checklist of Angiosperms, part 2. Types of Mato Grosso, edited by Dubs, B., 1– 5, 307.
  • Wasshausen, Dieter C. 1997. "Razisea ericae (Acanthaceae), a new species from Ecuador and adjacent Peru." Novon 7: 88– 91.
  • Wasshausen, Dieter C. 1997. "Acanthaceae." in Inventaire taxonomique des plantes de la Guyane Francaise V -- les dicotyledones, edited by Cremers, C. and Hoff, M., 13– 23.
  • Wasshausen, Dieter C. 1997. "A checklist of the Acanthaceae collected by John J. Wurdack in Amazonian Peru." BioLlania, Edición Especial 6: 541– 550.
  • Wasshausen, Dieter C. and Ezcurra, C. 1997. "New names and new combinations in Justicia sect. Simonsia, Plagiacanthus and Orthotactus (Acanthaceae) from southern South America." Candollea 52: 171– 179.
  • Wasshausen, Dieter C. 1996. "New species and new combinations in Apelandra (Acanthaceae) from Ecuador and adjacent Peru." Nordic Journal of Botany 16: 389– 407.
  • Wasshausen, Dieter C. 1996. "New species, new variety and new combinations in Stenandrium (Acanthaceae) from Ecuador and Columbia." Nordic Journal of Botany 16: 383– 388.
  • Wasshausen, Dieter C. 1995. "Acanthaceae." in Flora of the Pico das Almas Chapada Diamantina -- Bahia, Brazil, edited by Stannard, B. L., 112– 114.
  • Wasshausen, Dieter C. 1995. "Begonia mariannesis." The Begonian 62: 116– 117.
  • Wasshausen, Dieter C. 1995. "A new species, new combinations, and a new name in Acanthaceae from northern South America." Brittonia 47: 422– 425.
  • Wasshausen, Dieter C. 1995. "Acanthaceae." in Inventaire Taxonomique des Plantes de la Guyane Francaise V-Les Dicotyledones, edited by Cremers, C. and Hoff, M., 13– 23.
  • Wasshausen, Dieter C. 1995. "Acanthaceae." in Flora of the Venezuelan Guayana Vol. 2 (1955), edited by Steyermark, Julian A. and Collaborators., 335– 374.
  • Wasshausen, Dieter C. and Daniel, T. F. 1995. "Justicia nevlingii, a new species from Mexico." Novon 5: 114– 117.
  • Wasshausen, Dieter C. and McClellan, T. 1995. "Begonia mariannensis (Begoniaceae), a new species from Trinidad, West Indies." Brittonia 47: 21– 23.
  • Daniel, T. F. and Wasshausen, Dieter C. 1993. "A new Carlowrightia (Acanthaceae) from South America." Nordic Journal of Botany 13: 653– 656.
  • Profice, S. and Wasshausen, Dieter C. 1993. "Aphelandra espirito-santensis (Acanthaceae), a new species from Espírito Santo, Brazil." Novon 3: 280– 283.
  • Wasshausen, Dieter C. 1993. "Notes on Acanthaceae from Pico Das Almas, Bahia, Brazil." Kew Bulletin 48: 17– 20.
  • Wasshausen, Dieter C. 1993. "Acanthaceae. In Catalogue of the Flowering Plants and Gymnosperms of Peru." Monographs in Syst.Bot.from the Missouri Bot.Gard. 45: 2– 15.
  • Wasshausen, Dieter C. 1993. "Acanthaceae. Appendix I: New Combinations and New Names of Peruvian Plants. In Catalogue of the Flowering Plants and Gymnosperms of Peru." in Monographs in Syst. Bot. from the Missouri Bot. Gard, 1253.
  • Wasshausen, Dieter C. and Ezcurra, C. 1993. "A new species of Oplonia (Acanthaceae) from southern South America." Novon 3: 89– 91.
  • Ezcurra, C. and Wasshausen, Dieter C. 1992. "New species of Ruellia (Acanthaceae) from southern South America." Brittonia 44: 69– 73.
  • Wasshausen, Dieter C. 1992. "A further note on Justicia parquazensis Wasshausen (Acanthaceae)." Novon 2: 177.
  • Wasshausen, Dieter C. 1992. "Three new species of Justicia (Acanthaceae) from Brazil." Proceedings of the Biological Society of Washington 105: 664– 673.
  • Wasshausen, Dieter C. 1992. "Nomenclatural changes in the Acanthaceae and two new species of Odontonema from Venezuela and Guyana." Novon 2: 149– 152.
  • Wasshausen, Dieter C. 1992. "Acanthaceae." in Flora de La Real ExpediciA3n del Nuevo Reyno de Granada (1783-1816), edited by Mutis., 41.
  • Wasshausen, Dieter C. 1992. "New species and new combinations of Justicia (Acanthaceae) from the Venezuelan Guayana." Novon 2: 62– 80.
  • Wasshausen, Dieter C. 1992. "Acanthaceae." in Checklist of plants of the the Guianas (Guyana, Surinam, French Guiana), edited by Boggan, John K., 62– 65.
  • Wasshausen, Dieter C. 1992. "New species of Ruellia (Acanthaceae) from the Venezuelan Guayana." Novon 2: 139– 148.
  • Jakupovic, J., Schuster, A., and Wasshausen, Dieter C. 1991. "Acetylenes and labdanes from Baccharis pedunculata." Phytochemistry 30: 2785– 2787.
  • Wasshausen, Dieter C. 1991. "New species of Dicliptera (Acanthaceae) from the Guianas." Brittonia 43: 1– 6.
  • Wasshausen, Dieter C. 1991. "New species of Habracanthus (Acanthaceae) from Mexico." Brittonia 43: 185– 188.
  • Zdero, C., Bohlmann, F., and Wasshausen, Dieter C. 1991. "Guaianolides from Brachylaena species." Phytochemistry 30: 3810– 3811.
  • Zdero, C., Bohlmann, F., and Wasshausen, Dieter C. 1991. "Glaucolides from Old World Vernonia species." Phytochemistry 30: 4025– 4028.
  • Daniel, T. F. and Wasshausen, Dieter C. 1990. "Three new species of Justicia (Acanthaceae) from Panamá." Proceedings of the California Academy of Sciences 46: 289– 297.
  • Ezcurra, C. and Wasshausen, Dieter C. 1990. "Schaueria azaleaeflora (Acanthaceae), Nueva cita para la Argentina." Darwiniana 30: 238– 285.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1990. "Begonia soli-mutata, a new Brazilian species whose leaf color varies with light intensity." The Begonian 57: 217– 218.
  • Wasshausen, Dieter C. 1990. "Justicia maquirei, a new species of Acanthaceae from Guyana." Memoirs of the New York Botanical Garden 64: 235– 238.
  • Wasshausen, Dieter C. 1990. "New species of Stenandrium (Acanthaceae) from the Planalto of Brazil." Brittonia 42: 1– 6.
  • Wasshausen, Dieter C. 1990. "New species of Mendoncia (Acanthaceae) from the Venezuelan Guayana." Annals of the Missouri Botanical Garden 76: 1118– 1124.
  • Wasshausen, Dieter C. 1990. "New species of Justicia (Acanthaceae) from the Planalto of Brazil." Brittonia 41: 379– 384.
  • Wasshausen, Dieter C. 1990. "New and interesting species of Acanthaceae from Colombia." Rev.Acad.Colomb.Cienc. 17: 249– 257.
  • Wasshausen, Dieter C. 1990. "New species of Mendoncia (Acanthaceae) from Colombia." Brittonia 41: 329– 334.
  • Jakupovic, J., Grenz, M., and Wasshausen, Dieter C. 1989. "Sesquiterpene lactones from Rolandra fruticosa." Phytochemistry 28: 1937– 1941.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1989. "Begoniaceae." in Flora of Venezuela, edited by Morillo, G., 1– 78.
  • Wasshausen, Dieter C. 1989. "New and Interesting Species of Acanthaceae from Colombia." Revista de la Academia Colombiana de Ciencias Exactas.Fisicas y Naturales 17 (65): 249– 257.
  • Wasshausen, Dieter C. 1989. "New and interesting species of Acanthaceae from Peru." Beitr.Biol.Pfanzen 63: 421– 429.
  • Wasshausen, Dieter C. 1989. "New Species of Mendoncia (Acanthaceae) from the Venenzuelan Guayana." Annals of the Missouri Botanical Garden 76: 1118– 1124.
  • Wasshausen, Dieter C. 1989. "New Species of Mendoncia (Acanthaceae) from Colombia." Brittonia 41 (4): 329– 334.
  • Wasshausen, Dieter C. 1989. "New Species of Justicia (Acanthaceae) from the Planalto of Brazil." Brittonia 41 (4): 379– 384.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1988. "Notes on Begoniaceae - 4." Phytologia 64: 77.
  • Wasshausen, Dieter C. 1988. "New species of Habracanthus (Acanthaceae) from Venezuela." Acta Botanica Venezuelica 15: 133– 143.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1987. "Notes on Begoniaceae—VI." Phytologia 64: 77.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1987. "Begoniaceae." in Flora of Ecuador, edited by Harling, G. and Andersson, L., 1– 66.
  • Wasshausen, Dieter C. 1987. "New and interesting species of Justicia (Acanthaceae) from Amazonia." Acta Amazonica, Supplement 14: 145– 151.
  • Wasshausen, Dieter C. 1987. "New Species of Habracanthus (Acanthaceae) from Venezuela." Acta Botanica Venezuelica 15 (2): 133– 143.
  • Wasshausen, Dieter C. 1987. "New and interesting species of Acanthaceae from Ecuador." Opera Botanica 92: 265– 275.
  • Ramamoorthy, T. P. and Wasshausen, Dieter C. 1986. "A New Name in Dyschoriste (Acanthaceae)." Brittonia 37 (4): 358– 359.
  • Smith, Lyman B., Wasshausen, Dieter C., Golding, J., and Karegeannes, C. E. 1986. "Begoniaceae Part I: Illustrated Key; part II: Annotated Species List." Smithsonian Contributions to Botany (60): 1– 584. https://doi.org/10.5479/si.0081024X.60
  • Wasshausen, Dieter C. 1986. "The systematics of the genus Pachystachys (Acanthaceae)." Proceedings of the Biological Society of Washington 99: 160– 185.
  • Ramamoorthy, T. P. and Wasshausen, Dieter C. 1985. "A new name in Dyschoriste (Acanthaceae)." Brittonia 37: 358– 359.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1985. "A new Ecuador species." The Begonian 52: 11– 13.
  • Wasshausen, Dieter C. 1985. "New species of Habracanthus (Acanthaceae) from Ecuador." Brittonia 37: 243– 251.
  • Wasshausen, Dieter C. 1985. "Kalbreyeracanthus kirkbridei (Acanthaceae), a new species from Colombia." Brittonia 37: 199– 202.
  • Wasshausen, Dieter C. 1985. "New species of Hansteinia (Acanthaceae) from Colombia and Ecuador." Brittonia 37: 203– 208.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1984. "Notes on Begoniaceae - 3." Phytologia 54: 465– 473.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1984. "Notes on Begoniaceae - 4." Phytologia 55: 112.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1984. "Notes on Begoniaceae - 5." Phytologia 56: 16.
  • Wasshausen, Dieter C. 1984. "Two new species of Habracanthus (Acanthaceae) from Colombia." Brittonia 36: 68– 73.
  • Wasshausen, Dieter C. 1984. "New and Interesting Species of Justicia (Acanthaceae) from Amazonia." Suplemento, Acta Amazonica 14 (1): 145– 151.
  • Wasshausen, Dieter C. 1984. "Pranceacanthus coccineus (Acanthaceae), a new genus and species from Amazonian Brazil." Brittonia 36: 1– 7.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1983. "Notes on Begoniaceae - 2." Phytologia 53: 297– 301.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1983. "Notes on Begoniaceae - 1." Phytologia 52: 441– 451.
  • Rice, W. F., Smith, S. F., and Wasshausen, Dieter C. 1982. National List of Scientific Plant Names. U. S. Dept. of Agriculture, Soil Conservation Service.
  • Smith, Lyman B., Wasshausen, Dieter C., and Klein, R. M. 1982. "Gramineas, pt. 3." Flora Ilustrada Catarinense pt.3, fasc.GRAM. pt. 3: 911– 1407, pl.
  • Smith, Lyman B., Wasshausen, Dieter C., and Klein, R. M. 1982. "Gramineas, pt. 2." Flora Ilustrada Catarinense pt.2, fasc.GRAM. pt. 2: 443– 906, pl.
  • Smith, Lyman B., Wasshausen, Dieter C., and Klein, Roberto M. 1982. Gramineas: Flora Ilustrada Catarinense; Part 3-- Paspalum-Zea. Itajai Brasil: Herbârio " Barbosa Rodrigues ".
  • Smith, Lyman B., Wasshausen, Dieter C., and Klein, Roberto M. 1982. Gramineas: Flora Ilustrada Catarinense; Part 2: Deschampsia-Pseudechinolaena. Itajai Brasil: Herbârio " Barbosa Rodr igues ".
  • Wasshausen, Dieter C. 1982. "New species of Justicia (Acanthaceae) from Venezuela." Phytologia 52: 95– 98.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1981. "Chave para os Generos das Gramíneas Brasileiras." Bradea 3, suplemento: 1– 36.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1981. "Creeping species from Brazil now B. thelma." The Begonian 49: 114– 115.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1981. "The Begonia on the cover: B. listada." The Begonian 49: cover, 155– cover, 157.
  • Smith, Lyman B., Wasshausen, Dieter C., and Klein, R. M. 1981. "Gramineas, pt. 1." Flora Ilustrada Catarinense pt.1, fasc.GRAM. pt. 1: 1– 435, pl.
  • Wasshausen, Dieter C. 1981. "Justicia sonorae, a new species of Acanthaceae from Mexico." Phytologia 49: 65– 69.
  • Wasshausen, Dieter C. 1981. "Kalbreyeracanthus Wasshausen, nom. nov." Taxon 30: 477.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1979. "Begonia of Ecuador." Phytologia 44: 233– 256.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1978. "Notas sobre Gramineas Brasileiras - 1." Bradea 2, no. 35: 243– 250.
  • Smith, Lyman B. and Wasshausen, Dieter C. 1977. "Os gneros de Gramineas no Brasil." Bradea 2, no. 32: 221– 228.
  • Wasshausen, Dieter C. 1977. "New species of Acanthaceae from Colombia." Phytologia 37: 213– 218.
  • Wasshausen, Dieter C. 1977. "New taxa of Acanthaceae from the Rio Palenque Science Center." Selbyana 2 (1): 14– 21.
  • Wasshausen, Dieter C. 1976. "A new species of Oplonia (Acanthaceae) from Peru." Phytologia 33: 444– 446.
  • Wasshausen, Dieter C. 1976. "Two additional new species of Aphelandra (Acanthaceae)." Phytologia 33: 178– 182.
  • Wasshausen, Dieter C. 1976. "A new species of Ruellia (Acanthaceae) from Panamá." Phytologia 33: 59– 62.
  • Wasshausen, Dieter C. and de Arroyo, Mary T. Kalin. 1976. "A New Species of Justicia (Acanthaceae) from Venezuela." Boletin de la Sociedad Venezolana de Cilnuas Naturales 22: 407– 413.
  • Wasshausen, Dieter C. 1975. "The genus Aphelandra (Acanthaceae)." Smithsonian Contributions to Botany (18): 1– 157. https://doi.org/10.5479/si.0081024X.18
  • Getulio, A. and Wasshausen, Dieter C. 1974. "Tetramerium (Acanthaceae), Un genero nuevo para la flora de Venezuela." Acta Botanica Venezuelica 8, no. 1-3: 163– 166.
  • Wasshausen, Dieter C. 1974. "Two additional new species of Aphelandra (Acanthaceae)." Phytologia 26: 393– 396.
  • Wasshausen, Dieter C. 1974. "New combinations in cultivated Justicia (Acanthaceae)." Baileya 19: 1– 3.
  • Agostini, Getulio and Wasshausen, Dieter C. 1973. "Tetramerium (Acanthaceae), Un Genero Nuevo para la Flora de Venezuela." Acta Botanica Venezuelica 8 (1-4): 163– 166.
  • Wasshausen, Dieter C. 1973. "Two Additional New Species of Aphelandra (Acanthaceae)." Phytologia 26: 393– 396.
  • Wasshausen, Dieter C. 1973. "New Combinations in Cultivated Justicia (Acanthaceae)." Baileya 19: 1– 3.
  • Wasshausen, Dieter C. 1973. "New species of Aphelandra (Acanthaceae)." Phytologia 25: 465– 502.
  • Wasshausen, Dieter C. and Austin, D. F. 1973. "A Ruellia (Acanthaceae) species in Exogonium (Convolvulaceae)." Phytologia 25: 433– 437.
  • Wasshausen, Dieter C. 1971. "Acanthaceae." in Flora of the Galapagos Islands, edited by Wiggins, I. L. and Porter, D. M., 259– 268.
  • Wasshausen, Dieter C. 1970. "Acanthaceae." in Manual of the Vascular Plants of Texas, edited by Correll, D. S. and Johnston, M. C., 1456– 1475.
  • Wasshausen, Dieter C. 1970. "A sysnopsis of the genus Suessenguthis (Acanthaceae)." Rhodora 77 (789): 119– 125.
  • Wasshausen, Dieter C. 1970. "A Synopsis of the Genus Seussenguthia (Acanthaceae)." Rhodora 72 (789): 119– 125.
  • Wasshausen, Dieter C. and Smith, Lyman B. 1969. "Acanthaceae." in Flora Ilustrada Catarinensis, 1– 134.
  • Wasshausen, Dieter C. 1966. "Family Acanthaceae." in Flora of Texas, vol. 1, part 3, edited by Lundell, C. L., 223– 282.
  • Wasshausen, Dieter C. 1965. "New combinations in the family Acanthaceae." Phytologia 12: 427– 428.
  • Fenn, R. W., Gerber, H. E., and Wasshausen, Dieter C. 1963. "Measurements of the sulphur and ammonium components of the Arctic Aerosol of the Greenland Icecap." Journal of the Atmospheric Sciences 20: 466– 468.

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