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Ph.D., University of Michigan, 1986
I am a plant taxonomist, specializing in the family Eriocaulaceae, which occurs in wet, sunny, acidic habitats worldwide, but especially flourishes on Precambrian outcrop areas in South America. I’ve published one monograph, described 15 species, and authored some local floras and checklist treatments for Central and South America. I continue work on this family as a Research Associate in the Botany Dept.
I’ve been working with the general identification of Neotropical flowering plants for the past twenty years, first with the Botany Department, studying project material from northern Peru. I now curate ECCo’s “Neotropical Herbarium Specimens” website, which is an identification resource for neotropical botanists. I verify the identifications on our scanned specimens, and curate neotropical material in the main herbarium as needed. I also help identify collections by Robin Foster and his colleagues, from RBI’s (Rapid Biological Inventories), mostly in the Eastern Andes and upper Amazon basin.
Selected Publications
Hensold, N. 1988. Morphology and Systematics of Paepalanthus subg. Xeractis (Eriocaulaceae). Syst. Bot. Monogr. 23: 1-150.
Giulietti A.M. & N. Hensold. 1990. Padrões de distribuição geográfica dos gêneros de Eriocaulaceae. (Patterns of geographic distribution of the genera of Eriocaulaceae.) Acta Bot. Brasil. 4(1): 133-158.
Hensold, N. 1991. Revisionary studies in the Eriocaulaceae of Venezuela. Ann. Missouri Bot. Gard. 78: 424-440.
Hensold, N. & A. M. Giulietti. 1991. Revision and redefinition of the genus Rondonanthus (Eriocaulaceae). Ann. Missouri Bot. Gard. 78: 441-459.
Giulietti, A.M. & N. Hensold. 1991. Synonymization of the genera Comanthera and Carptotepala with Syngonanthus (Eriocaulaceae). Ann. Missouri Bot. Gard. 78: 460-464.
Dillon, M. O., A. Sagástegui, I. Sánchez V., S. Llatas Q., & N. Hensold. 1995. Floristic inventory and biogeographic analysis of montane forests in northwestern Peru. pp. 251-270. In: S. Churchill, H. Balslev, E. Forero & J. Luteyn (eds.), Biodiversity and Conservation of Neotropical Montane Forests. Bronx, NY: The New York Botanical Garden.
Sagastegui A., A., S. Leiva, P. Lezama, M. Dillon, & N. Hensold. 1995 [1996.] Inventario Preliminar de la flora del Bosque Cachil. Arnaldoa 3(2): 19-34.
Hensold, N. 1996 [1997]. Paepalanthus subg. Xeractis (Eriocaulaceae): notes and nomenclatural changes. Phytologia 81(1): 24-27.
Hensold, N. 1997 [1998]. Base de datos de especimenes para la investigacion y manejo de colecciones: un manual practico para usuarios de dBase® y WordPerfect®. Arnaldoa 4(2): 123-158.
Hensold, N. 1998. Eriocaulaceae. In: Dubs, B., ed. Prodromus Florae Matogrossensis, pp. 92-94. The Botany of Mato Grosso, ser. B, No. 3. Betrona Verlag, Kusnächt, Switzerland.
Hensold, N. 1998. Erythroxylaceae. In: Dubs, B., ed. Prodromus Florae Matogrossensis, pp. 94-97. The Botany of Mato Grosso, ser. B, No. 3. Betrona Verlag, Kusnächt, Switzerland.
Hensold, N. 1998. Flora da Serra do Cipó, Minas Gerais: Paepalanthus subg. Xeractis (Eriocaulaceae). Bol. Bot. Univ. São Paulo 17: 207-218.
Hensold, N. 1999. Eriocaulaceae. In: P. Berry, B. Holst, & K. Yatskievych, eds. Flora of the Venezuelan Guayana, Vol. 5: 1-58. Missouri Botanical Garden Press, St. Louis.
Hensold, N. 1999 [2000]. Las angiospermas endémicas del Depto. de Cajamarca, Perú. Arnaldoa 6(2): 141-183.
Hensold, N. & B.E. Hammel. 2003. Eriocaulaceae. In: B.E.Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.), Manual de Plantas de Costa Rica. Monogr. Syst. Bot. Missouri Bot. Gard. 92: 569-575.
Plowman, T. & N. Hensold. 2004. Names, types, and distributions of Neotropical species of Erythroxylum(Erythroxylaceae). Brittonia 56 (1): 1-53.
Hensold, N. 2004. Two new species and a new combination in South American Eriocaulaceae. Novon 14(3): 302-308.
Garwood, N.C., N. Hensold, & R.B. Foster. 2009. Appendix I: Revised Species List for Barro Colorado Island, with Synonyms, pp. 247-290, In: N. C. Garwood, Seedlings of Barro Colorado Island and the Neotropics.Cornell University Press, Ithaca & London.
Hensold, N., A.L.R. Oliveira & A.M. Giulietti. 2012. Syngonanthus restingensis(Eriocaulaceae): A remarkable new species endemic to Brazilian coastal shrublands. Phytotaxa 40: 1-11.
Giulietti, A.M., N. Hensold, L.R. Parra, M.J.G. Andrade, C. van den Berg & R. M. Harley. 2012. The synonymization of Philodice with Syngonanthus (Eriocaulaceae). Phytotaxa 60: 50-56.
Hensold, N. [in press] Eriocaulaceae. In: P. M. Jørgensen et al. (eds.) Catálogo de las Plantas Vasculares de Bolivia. Missouri Botanical Garden Press.