Reassessment of subspecific taxa within Pediocactus peeblesianus (Cactaceae) by multivariate analysis of morphological characters
DOI:
https://doi.org/10.17348/jbrit.v16.i1.1234Resumen
Se llevó a cabo un estudio para determinar si hay grupos de poblaciones dentro de Pediocactus peeblesianus que, cuando se consideran colectivamente, poseen combinaciones de valores de caracteres morfológicos que son significativamente diferentes entre grupos y si tales agrupaciones se correlacionan con la geografía. Se midieron 17 caracteres del tallo en un total de 323 individuos de 11 poblaciones, incluidas tres del grupo externo, Pediocactus sileri. Los datos morfológicos no sugirieron ninguna forma geográfica práctica para segregar grupos taxonómicos de poblaciones dentro de P. peeblesianus. Se produjo una débil línea morfológica de oeste a este, en la que las espinas centrales aumentaron en número y longitud, y las espinas radiales disminuyeron en grosor. Los valores de cuatro caracteres se correlacionaron significativamente con el diámetro del tallo, lo que indica que una cantidad significativa de la variación morfológica dentro de P. peeblesianus puede explicarse por el tamaño de la planta. Históricamente, el taxón P. peeblesianus var. peeblesianus evidentemente se basó en individuos neoténicos que se encontraban en suelos muy poco profundos, mientras que P. peeblesianus var. fickeiseniorum se basó en individuos que se encontraban en suelos más profundos más al oeste a lo largo del cline.
Citas
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BACKEBERG, C. 1961. Die Cactaceae, Handbuch der Kakteenkunde, Volume 5. EB Gustav Fischer Verlag, Stuttgart, Germany.
BAKER, M.A. & C. BUTTERWORTH. 2013. Geographic distribution and taxonomic circumscription of populations within Coryphantha section Robustispina (Cactaceae). Amer. J. Bot. 100:984–997.
BENSON, L. 1950. The cacti of Arizona, 2nd edition. Univ. of Arizona Press, Tucson, U.S.A.
BENSON, L. 1962. Revision and amplification of Pediocactus III. J. Cact. Succ. Soc. Amer. 34:57–61.
BENSON, L. 1969. The cacti of Arizona, 3rd edition. Univ. of Arizona Press, Tucson, U.S.A.
BENSON, L. 1982. The cacti of the United States and Canada. Stanford University Press, Stanford, CA, U.S.A.
BRUMMIT, R.K. 2001. Report of the Committee for Spermatophyta: 52. Taxon 50:1179–1182.
BUTTERWICK, M. 1985. Population study of an endangered endemic, Pediocactus peeblesianus var. peeblesianus (Cactaceae). Amer. J. Bot. 72:847–848.
BUTTERWORTH, C.A. 2012. Pediocactus. In: N.H. Holmgren, P.K. Holmgren, and J.L. Reveal, eds. Intermountain flora. Vol. 2(A):689–697.
CROZOIT, L. 1943. Navajoa, a new genus in Cactaceae. J. Cact. Succ. Soc. Amer. 15:88–89
DOWELD A.B. 1999. Nomenclatural changes of some subjective homonyms in Cacteae (Cactoideae-Cactaceae). Sukkulenty 2(3):43.
FRANK, G.R. 2007. Scanning electron micrographs of seeds. In: Hochstätter, F.The genera Pediocactus Navajoa Toumeya. Fritz Hochstätter, Mannheim, Germany. Pp. 55–60.
FERGUSON, G. 2014. University of Arizona Herbarium (ARIZ), Tucson. Half a million specimens and a century of research, service, and education in plant and fungal biodiversity. Pl. Press (Tucson) 37:10–13.
HÁJEK, M. 2000. Two new combinations in the genus Pediocactus. Kaktusy (Brno) 34(3):73.
HEIL, K.D. & J.M. PORTER. 2003. Pediocactus. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York, U.S.A. and Oxford, UK. 4:211–216.
HENTZSHEL, G. 1989. Die Morphologie der Samen von Pediocactus und Sclerocactus spp. In: Hochstätter, F. An den Standorten von Pedio-cactus und Sclerocactus. Pp. 128–142 [pp. 134–150 in the English edition 1990].
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KONNERT, M. 2007. Isozyme analysis of Pediocactus, Navajoa, Toumeya, and related genera. In: Hochstätter, F. The genera Pediocactus Navajoa Toumeya. Fritz Hochstätter, Mannheim, Germany. Pp. 50–52.
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HOCHSTÄTTER, F. 2003. New combinations in the genera Pediocactus and Navajoa (Cactaceae) Cactaceae-Review, IRT 6(1):11.
HOCHSTÄTTER, F. 2007. The genera Pediocactus Navajoa Toumeya. Fritz Hochstätter, Mannheim, Germany.
HOCHSTÄTTER, F. 2008. The genus Pediocactus Britton & Rose (Cactacaeae) Part I Cactaceae-Review, IRT 11:20
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KLADIWA, L. 1969. Utahia peeblesiana (Croizat) Kladiwa comb. nov., C VI e-C VIII b. In: Krainz, H. Die Kakteen: Eine Gesamtdarstellung der eingeführten Arten nebst Anzucht- und Pflege-Anweisungen. Herausgegeben, Stuttgart, Germany.
LÜTHY, J.M.1999. Einige neue Kakteen-Namen. Kakteen und. Sukk. 50(11):277–280.
MARSHALL, W.T. 1947. Revisions in the taxonomy and some new combinations in Cactaceae. J. Cact. Succ. Soc. Amer. 19:75–77.
PARFITT, B.D. & A.C. GIBSON. 2003. Cactaceae. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York, U.S.A. and Oxford, UK. 4:92–257.
PEEBLES, R.H. 1941. Arizona cactus. J. Cact. Succ. Soc. Amer. 13:194–198.
PORTER, J.M. 2010. Phylogenetic analysis of chloroplast trnL-F DNA sequences in Pediocactus (Cactaceae), with special reference to P. peeblesianus. Final report prepared for the U. S. Bureau of Land Management, Safford, Arizona, U.S.A. 29 pp.
PORTER, J.M. 2014. Series of emails between M. Baker and J. M. Porter, 30 July and 17 November 2014.
REVEAL, J.L. 2012. Nomenclatural review of the epithet fickeisenii. In: N.H. Holmgren, P.K. Holmgren, and J.L. Reveal, eds. Intermountain flora. Vol. 2(A):697. New York Botanical Garden Press, Bronx, U.S.A.
ZIMMERMAN, A.D. & B.D. PARFITT. 2003. Coryphantha. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York, U.S.A. and Oxford, UK. 4:220–237.
BACKEBERG, C. 1961. Die Cactaceae, Handbuch der Kakteenkunde, Volume 5. EB Gustav Fischer Verlag, Stuttgart, Germany.
BAKER, M.A. & C. BUTTERWORTH. 2013. Geographic distribution and taxonomic circumscription of populations within Coryphantha section Robustispina (Cactaceae). Amer. J. Bot. 100:984–997.
BENSON, L. 1950. The cacti of Arizona, 2nd edition. Univ. of Arizona Press, Tucson, U.S.A.
BENSON, L. 1962. Revision and amplification of Pediocactus III. J. Cact. Succ. Soc. Amer. 34:57–61.
BENSON, L. 1969. The cacti of Arizona, 3rd edition. Univ. of Arizona Press, Tucson, U.S.A.
BENSON, L. 1982. The cacti of the United States and Canada. Stanford University Press, Stanford, CA, U.S.A.
BRUMMIT, R.K. 2001. Report of the Committee for Spermatophyta: 52. Taxon 50:1179–1182.
BUTTERWICK, M. 1985. Population study of an endangered endemic, Pediocactus peeblesianus var. peeblesianus (Cactaceae). Amer. J. Bot. 72:847–848.
BUTTERWORTH, C.A. 2012. Pediocactus. In: N.H. Holmgren, P.K. Holmgren, and J.L. Reveal, eds. Intermountain flora. Vol. 2(A):689–697.
CROZOIT, L. 1943. Navajoa, a new genus in Cactaceae. J. Cact. Succ. Soc. Amer. 15:88–89
DOWELD A.B. 1999. Nomenclatural changes of some subjective homonyms in Cacteae (Cactoideae-Cactaceae). Sukkulenty 2(3):43.
FRANK, G.R. 2007. Scanning electron micrographs of seeds. In: Hochstätter, F.The genera Pediocactus Navajoa Toumeya. Fritz Hochstätter, Mannheim, Germany. Pp. 55–60.
FERGUSON, G. 2014. University of Arizona Herbarium (ARIZ), Tucson. Half a million specimens and a century of research, service, and education in plant and fungal biodiversity. Pl. Press (Tucson) 37:10–13.
HÁJEK, M. 2000. Two new combinations in the genus Pediocactus. Kaktusy (Brno) 34(3):73.
HEIL, K.D. & J.M. PORTER. 2003. Pediocactus. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York, U.S.A. and Oxford, UK. 4:211–216.
HENTZSHEL, G. 1989. Die Morphologie der Samen von Pediocactus und Sclerocactus spp. In: Hochstätter, F. An den Standorten von Pedio-cactus und Sclerocactus. Pp. 128–142 [pp. 134–150 in the English edition 1990].
JANEBA, Z. 2009. Insect flower visitors and pollinators of cacti from the southwest USA: A contribution to the identification of insect flower visitors/pollinators of some globular cacti (tribe Cacteae) and opuntias (tribes Opuntieae and Cylindropuntieae) from the southwest USA. Bradleya 27:59–68.
KONNERT, M. 2007. Isozyme analysis of Pediocactus, Navajoa, Toumeya, and related genera. In: Hochstätter, F. The genera Pediocactus Navajoa Toumeya. Fritz Hochstätter, Mannheim, Germany. Pp. 50–52.
HOCHSTÄTTER, F. 1994. Revise van het geslacht Pediocactus – 1 Navajoa en Toumeya. Succulenta (Netherlands)73(3):131–142.
HOCHSTÄTTER, F. 1995. Die Gattung Navajoa. Kakteen And. Sukk. 46(5)113–119.
HOCHSTÄTTER, F. 2003. New combinations in the genera Pediocactus and Navajoa (Cactaceae) Cactaceae-Review, IRT 6(1):11.
HOCHSTÄTTER, F. 2007. The genera Pediocactus Navajoa Toumeya. Fritz Hochstätter, Mannheim, Germany.
HOCHSTÄTTER, F. 2008. The genus Pediocactus Britton & Rose (Cactacaeae) Part I Cactaceae-Review, IRT 11:20
KEARNEY, T.H. & R.H. PEEBLES. 1942. Flowering plants and ferns of Arizona. United States Department of Agriculture Misc. Publ. 423, United States Printing Office, Washington D.C, U.S.A.
KLADIWA, L. 1969. Utahia peeblesiana (Croizat) Kladiwa comb. nov., C VI e-C VIII b. In: Krainz, H. Die Kakteen: Eine Gesamtdarstellung der eingeführten Arten nebst Anzucht- und Pflege-Anweisungen. Herausgegeben, Stuttgart, Germany.
LÜTHY, J.M.1999. Einige neue Kakteen-Namen. Kakteen und. Sukk. 50(11):277–280.
MARSHALL, W.T. 1947. Revisions in the taxonomy and some new combinations in Cactaceae. J. Cact. Succ. Soc. Amer. 19:75–77.
PARFITT, B.D. & A.C. GIBSON. 2003. Cactaceae. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York, U.S.A. and Oxford, UK. 4:92–257.
PEEBLES, R.H. 1941. Arizona cactus. J. Cact. Succ. Soc. Amer. 13:194–198.
PORTER, J.M. 2010. Phylogenetic analysis of chloroplast trnL-F DNA sequences in Pediocactus (Cactaceae), with special reference to P. peeblesianus. Final report prepared for the U. S. Bureau of Land Management, Safford, Arizona, U.S.A. 29 pp.
PORTER, J.M. 2014. Series of emails between M. Baker and J. M. Porter, 30 July and 17 November 2014.
REVEAL, J.L. 2012. Nomenclatural review of the epithet fickeisenii. In: N.H. Holmgren, P.K. Holmgren, and J.L. Reveal, eds. Intermountain flora. Vol. 2(A):697. New York Botanical Garden Press, Bronx, U.S.A.
ZIMMERMAN, A.D. & B.D. PARFITT. 2003. Coryphantha. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York, U.S.A. and Oxford, UK. 4:220–237.
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2022-07-15
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Baker, M., & Cloud-Hughes, M. A. (2022). Reassessment of subspecific taxa within Pediocactus peeblesianus (Cactaceae) by multivariate analysis of morphological characters. Journal of the Botanical Research Institute of Texas, 16(1), 297–315. https://doi.org/10.17348/jbrit.v16.i1.1234
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