Abstract
Theligonum cynocrambe and 13 species ofRubiaceae contain S-type sieve-element plastids, wide-spread in Dicotyledons. Alignment ofTheligonum toCaryophyllales (Centrospermae), especiallyPhytolaccaceae, is unlikely, because this order is characterized by specific P-type plastids. SEM investigations show the pollen exine ofTheligonum to be microreticulate, with additional supratectate spinules.Asperula and other genera of the tribeRubieae have a tectum perforatum (punctitegillate sexine), also with supratectate verrucae or spinulae.—Thus ultrastructure suggests (but not definitely proves) relationships betweenTheligonum andRubiaceae, while affinities betweenTheligonum andCaryophyllales are excluded.
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Literaturverzeichnis
Baillon, H., 1873: Histoire des plantes. Paris.
Behnke, H.-D., 1972: Sieve-tube plastids in relation to angiosperm systematics. An attempt towards a classification by ultrastructural analysis. Bot. Rev.38, 155–197.
—, 1975: P-type sieve-element plastids: A correlative ultrastructural and ultrahistochemical study on the diversity and uniformity of a new reliable character in seed plant systematics. Protoplasma83, 91–101.
Bortenschlager, S., 1973: Morphologie pollinique desPhytolaccaceae. Pollen et Spores15, 227–253.
Cronquist, A., 1968: The evolution and classification of flowering plants. London: Nelson.
Erdtman, G., 1966: Pollen morphology and plant taxonomy. Angiosperms, 2nd, ed. New York-London: Hafner.
Hutchinson, J., 1969: Evolution and phylogeny of flowering plants. Dicotyledons: Facts and Theory. London.
Kooiman, P., 1971: Ein phytochemischer Beitrag zur Lösung des Verwandtschaftsproblems derTheligonaceae. Österr. Bot. Z.119, 395–398.
Leuenberger, B., Schill, R., undUhlarz, H., 1973: Eine Methode zur Herstellung von Exinebruchstücken für pollenmorphologische Untersuchungen im Raster-Elektronenmikroskop. J. Microscopie18, 259–262.
Mabry, T. J., Eifert, I. J., Chang, C., Mabry, H., Kidd, C., andBehnke, H.-D., 1975:Theligonaceae: Pigment and ultrastructural evidence which excludes it from the orderCentrospermae. Biochem. Syst. and Ecol.3 (in press).
Melchior, H., 1964:Myrtiflorae. In:Englers Syllabus der Pflanzenfamilien II., 12. Aufl. Berlin: Bornträger.
Nowicke, J. W., 1975: Preliminary survey of pollen morphology in the orderCentrospermae. Grana (in press).
Praglowski, J., 1973: The pollen morphology of theTheligonaceae with reference to taxonomy. Pollen et Spores15, 385–396.
Takhtajan, A., 1959: Die Evolution der Angiospermen. Jena: Fischer.
—, 1969: Flowering plants.—Origin and dispersal. Edinburgh: Oliver & Boyd.
—, 1973: Evolution und Ausbreitung der Blütenpflanzen. Stuttgart: Fischer.
Wunderlich, R., 1971: Die systematische Stellung vonTheligonum. Österr. Bot. Z.119, 329–394.
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Behnke, H.D. Elektronenmikroskopische Untersuchungen zur Frage der verwandtschaftlichen Beziehungen zwischenTheligonum undRubiaceae: Feinbau der Siebelement-Plastiden und Anmerkungen zur Struktur der Pollenexine. Pl Syst Evol 123, 317–326 (1975). https://doi.org/10.1007/BF00987062
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DOI: https://doi.org/10.1007/BF00987062