Abstract
The species ofChamaesyce classified by Boissier as the “Pleiadeniae” are revised in light of presently available collections. Six species are accepted and new combinations are proposed forC. nana, C. setosa, C. tamanduana, andC. viscoides. Although these herbaceous perennials of cerrado vegetation of Brazil, northern Argentina, and adjacent countries are distinctive ecologically and geographically, cladistic analysis does not support their recognition as a monophyletic group.
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Literature Cited
Adams, E. N. 1972. Consensus techniques and the comparison of taxonomic terms. Syst. Zool. 21: 390–397.
Allem, A. C. 1977. Notas sistemáticas y nuevos sinónimos en Euphorbiaceae de América del Sur—V. Revista Brasil. Biol. 37: 223–231.
Allem, A. C. &B. E. Irgang. 1975. Flora illustrada do Rio Grande do Sul: Euphorbiaceae Tribo Euphorbieae. Bol. Inst. Cent. Biociências, Sér. Bot. 4, 34: 1–97.
Benedí, C. &J. J. Orell. 1992. Taxonomy of the genusChamaesyce S. F. Gray (Euphorbiaceae) in the Iberian Peninsula and the Balearic Islands. Collect. Bot. (Barcelona) 21: 9–55.
Boissier, E. 1860. Centuria Euphorbiarum. Pages 1–40. Paris.
Boissier, E. 1862. Subordo Euphorbieae.In: De Candolle, Prodromus 15(2): 3–188. Paris.
Boissier, E. 1866. Icones Euphorbiarum. 1–24., 1–120 fig., Paris.
Bremer, K. 1990. Combinable component consensus. Cladistics 6: 369–372.
Chodat, R. 1901. Plantae Hasslerianae soit énumération des plantes récoltées au Paraguay par le Dr. Émile Hassler, d'Aarau (Suisse) de 1885–1895 et de 1898–1900. Euphorbiaceae. Bull. Herb. Boissier, sér. 2, 1: 395–400.
Chodat, R. & E. Hassler. 1905.Euphorbia. In: Plantae Hasslerianae. Bull. Herb. Boissier, sér. 2, 5: 613–616.
Croizat, L. 1943. Novelties in American Euphorbiaceae. J. Arnold Arbor. 24: 165–189.
Emrich, K. 1937. Uma novaEuphorbia dos campos do Rio Grande do Sul. Revista Sudamer. Bot. 4: 83–85.
Farris, J. 1969. A successive approximations approach to character weighting. Systematic Zoology 18: 374–385.
Farris, J. 1988. Hennig86 version 1.5. Computer program and documentation. Distributed by the author.
Farris, J. 1991. Eve version 1.1. Computer program. Distributed by the author.
Goloboff, P. A. 1993a. Estimating character weights during tree search. Cladistics 9: 38–91.
Goloboff, P. A. 1993b. Pee-Wee version 2.1. Computer software and documentation. Distributed by the author.
Haber, J. M. 1925. The anatomy and morphology of the flower ofEuphorbia. Ann. Bot. 39: 657–707.
Hayden, W. J. 1988. Ontogeny of the cotyledonary region ofChamaesyce maculata (Euphorbiaceae). Amer. J. Bot. 75: 1701–1713.
Huft, M. J. 1979. A monograph ofEuphorbia sectionTithymalopsis. Ph.D. dissertation, University of Michigan.
Hurusawa, I. 1954. Eine nochmalige Durchsicht des herkömlichen Systems der Euphorbiaceen im weiteren Sinne. J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 6: 209–342.
Jordan, M. S. &W. J. Hayden. 1992. A survey of mucilaginous testa inChamaesyce. Collect. Bot. (Barcelona) 21: 79–89.
Klotzsch, F. 1859. Linnés natürliche Pflanzenklasse Tricoccae. Abh. K. Akad. Wiss. Berlin. 1: 1–108.
Koutnik, D. L. 1984.Chamaesyce (Euphorbiaceae)—a newly recognized genus in southern Africa. South African J. Bot. 3: 262–264.
Koutnik, D. L. 1987. A taxonomic revision of the Hawaiian species of the genusChamaesyce (Euphorbiaceae). Allertonia 4(6): 331–388.
Lin, S., S. Chaw, &C. Hsieh. 1991. A taxonomic study of the genusChamaesyce S. F. Gray (Euphorbiaceae) in Taiwan. Bot. Bull. Acad. Sin. 32: 215–251.
López, C. &M. J. Diez. 1985. Contribución al atlas palinológico de Andalucía occidental, III Euphorbiaceae. Lagascalia 13: 275–291.
Mueller, J. (Mueller Argoviensis). 1874. Euphorbiaceae.In: C. F. P. Martius. Flora Brasiliensis 11(2): 293–750. Munich.
Nixon, K. C. 1993. ClaDOS version 1.4. Computer program and documentation. Distributed by the author.
Nixon, K. C. &Q. D. Wheeler. 1990. Extinction and the origin of species. Pages 119–143.In: M. J. Novak & Q. D. Wheeler (editors). Extinction and phylogeny. Columbia University Press, New York.
Punt, W. 1962. Pollen morphology of the Euphorbiaceae with special reference to taxonomy. Wentia 7: 1–116.
Rambo, B. 1960. Euphorbiaceae Riograndenses. Pesquisas 9: 1–78.
Schoute, J. C. 1937. On the aestivation in the cyathium ofEuphorbia fulgens, with some general remarks on the morphological interpretation of the cyathium in general. Rec. Trav. Bot. Neérl. 34: 168–181.
Sokal, R. R. &F. J. Rohlf. 1981. Taxonomic congruence in the Leptopodomorpha re-examined. Syst. Zool. 30: 309–325.
Subils, R. 1977. Las especies deEuphorbia de la República Argentina. Kurtziana 10: 83–248.
Weberling, F. 1989. Morphology of flowers and inflorescences. Cambridge University Press, Cambridge.
Webster, G. L. 1967. The genera of Euphorbiaceae in the southeastern United States. J. Arnold Arbor. 48: 303–430.
Webster, G. L. 1994. Synopsis of the genera and suprageneric taxa of Euphorbiaceae. Ann. Missouri Bot. Gard. 81: 33–144.
Webster, G. L., W. V. Brown &B. N. Smith. 1975. Systematics of photosynthetic carbon fixation pathways inEuphorbia. Taxon 24: 27–33.
Webster, G. L., E. Rupert &D. Koutnik. 1982. Systematic significance of pollen nuclear number in Euphorbiaceae, tribe Euphorbieae. Amer. J. Bot. 69: 407–415.
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Simmons, M.P., Hayden, W.J. Revision of the cerrado hemicryptophytic Chamaesyce of Boissier's “Pleiadeniae” (Euphorbiaceae). Brittonia 49, 155–180 (1997). https://doi.org/10.2307/2807678
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DOI: https://doi.org/10.2307/2807678