Abstract
LM, SEM and TEM observations document similar palynological features for paleo- and neotropical species ofAnaxagorea. Pollen grains are solitary, heteropolar, ellipsoidal to globose, and broadly sulcate. The exine consists of a smooth and microperforated tectum, a granular to “protocolumellar” infratectal layer, and sometimes an initial, not foliated basal layer. The intine is stratified and tends to extrude with its considerably swelling alveolarfibrillar outer layer through the aperture, already inside the unopened pollen sacs. This appears as a new and irreversible harmomegathic mechanism, limited toAnaxagorea, Meiocarpidium and possibly otherAnnonaceae. These palynological data are discussed and coordinated with those from gross-morphological, anatomical, karyological, phytochemical and other studies. All this offers convincing proof for the sometimes questioned systematic and phylogenetic coherence of the widely disjunct S. & C. American and SE. Asian members ofAnaxagorea. Furthermore, a broad comparison with otherAnnonaceae genera demonstrates somewhat closer links ofAnaxagorea with several small and relictual African genera, i.e.Meiocarpidium andPolyceratocarpus, but alsoLettowianthus andPiptostigma;Cleistopholis andAmbavia are more isolated. These genera which exhibit many “primitive” features are provisionally arranged under “tribe I” of the so-called “Fusaea subfamily”. There are loose affinities with “tribe II”, an assembly of more advanced and widespread, often proliferating generic groups, including the S. AsianCananga, the pantropicalXylopia (withPseudannona from Mauritius), a possible link toAnaxagorea and “tribe I”, and the S. AsianGoniothalamus (with the AustralasianRichella s. str. and the W. AfricanNeostenanthera andBoutiquea); the neotropicalFusaea andDuckeanthus apparently are more remote. Because of relationships to several otherAnnonaceae groups and difficulties with its circumscription and definition, the maintainance of the “Fusaea subfamily” as a whole appears questionable.
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References
Corner, E. J. H., 1949: The annonaceous seeds and its four integuments.—New Phytol.48, 332–364.
—, 1976: The seeds of Dicotyledons. 2 Vols. — London-New York-Melbourne: Cambridge Univ. Press.
Ehrendorfer, F., Krendl, F., Habeler, E., Sauer, W., 1968: Chromosome numbers and evolution in primitive Angiosperms. — Taxon17, 337–353.
Engler, A., Diels, L., 1901:Annonaceae. — InEngler, A. (Ed.): Monographieen Afrikanischer Pflanzen-Familien und -Gattungen6, 1–96. Leipzig: Engelmann.
Fries, R. E., 1940: Einige Gesichtspunkte zur Beurteilung der Verwandtschaftsverhältnisse der Annonaceen-GattungAnaxagorea. — Svensk Bot. Tidskr.34, 399–408.
—, 1943: Einige Gesichtspunkte zur systematischen Gruppierung der amerikanischen Annonaceen-Gattungen. — Ark. Bot.30 (8), 1–31.
—, 1959:Annonaceae. — InEngler, A. &Prantl, K. (Eds.), Die natürlichen Pflanzenfamilien, ed. 2 (Ed.H. Melchior),17 a II, 1–171. — Berlin: Duncker & Humblot.
Guédès, M., 1982: Exine stratification, ectexine structure and angiosperm evolution. — Grana21, 161–170.
Heslop-Harrison, J., 1979: Pollen walls as adaptive systems. — Ann. Missouri Bot. Gard.66, 813–829.
Hesse, M., Morawetz, W., 1984: Ultrastruktur und Funktion des Sporoderms beiAnaxagorea (Annonaceae). — InEhrendorfer, F. (Ed.): Mitteilungsband der Botanikertagung in Wien, Kurzfassungen der Beiträge, 126. — Wien: Inst. Bot. Univ.
Hesse, M., Waha, M., 1984: Sporoderm characters ofTetrameranthus duckei (Annonaceae) and their systematic implications. — Pl. Syst. Evol.147, 323–326.
Hutchinson, J., 1964: The Genera of Flowering Plants,Dicotyledones. — Oxford: Clarendon.
Kress, W. J., Stone, D. E., 1983: Pollen intine structure, cytochemistry and function in Monocots. — InMulcahy, D. L., Ottaviano, E. (Eds.), 1983: Pollen: Biology and Implications for Plant Breeding, 159–163. — New York-Amsterdam-Oxford: Elsevier.
Leboeuf, M., Cavé, A., Bhaumik, P. K., Bhaumik, B., Mukherjee, B., Mukherjee, R., 1982: The phytochemistry of theAnnonaceae. — Phytochemistry21, 2783–2813.
Le Thomas, A., 1969:Annonaceae. — InAubreville, A. (Ed.): Flore de Gabon16. — Paris: Mus. Hist. Nat.
—, 1972: Apport de la palynologie dans la création d'un nouveau genre d'Annonacées. — C.R. Acad. Sci. Paris274, 1652–1655.
—, 1980/81: Ultrastructural characters of the pollen grains of AfricanAnnonaceae and their significance for the phylogeny of primitive Angiosperms, I. + II. — Pollen et Spores22, 267–342;23, 5–36.
—,Lugardon, B., 1975: Ultrastructure d'un pollen original parmi les Annonacées. — Bull. Soc. bot. Fr.122, 109–111.
Maas, P. J. M., Westra, L. Y. Th. (Eds.), 1984/85: Studies inAnnonaceae. II. A monograph of the genusAnaxagorea A. St. Hil. Parts 1 and 2. — Bot. Jb.105, 73–134 and in press.
Mangenot, S., Mangenot, G., 1962: Enquête sur les nombres chromosomiques dans une collection d'espèces tropicales. — Rev. Cyt. Biol. Vég.25, 411–447.
Metcalfe, C. R., Chalk, L., 1950: Anatomy of the Dicotyledons1, 44–50. — Oxford: Clarendon Press.
Morawetz, W., 1984a: How stable are genomes of tropical plants? Heterozygosity of C-banded karyotypes ofPorcelia as compared withAnnona (Annonaceae) andDrimys (Winteraceae). — Pl. Syst. Evol.145, 29–39.
—, 1984b: Karyological races and ecology ofDugetia furfuracea as compared withXylopia aromatica (Annonaceae). — Flora175, 195–209.
—, 1984c: Karyologie, Ökologie und Evolution der GattungAnnona in Pernambuco, Brasilien. — Flora175, 435–447.
—,Hesse, M., 1984: Primäre und sekundäre Aperturen bei Angiospermenpollen. — InEhrendorfer, F., (Ed.): Mitteilungsband der Botanikertagung in Wien, Kurzfassungen der Beiträge, 129. — Wien: Inst. Bot. Univ.
—,Waha, M., 1984: Die Epidermisskulptur als Gattungsmerkmal bei primitiven Angiospermen. — Pl. Syst. Evol.144, 73–75.
- - 1985: A new pollen type, C-banded and fluorescent counterstained chromosomes and evolution inGuatteria and related genera (Annonaceae). — Pl. Syst. Evol. (in press).
Okada, H., Ueda, K., 1984: Cytotaxonomical studies on AsianAnnonaceae. — Pl. Syst. Evol.144, 165–177.
Pacini, E., Franchi, G. G., 1982: Germination of pollen inside anthers in some non-cleistogamous species. — Caryologia35, 205–215.
Payne, W. W., 1972: Observations of harmomegathy in pollen ofAnthophyta. — Grana12, 93–98.
—, 1981: Structure and function in Angiosperm pollen wall evolution. — Rev. Palaeobot. Palynol.35, 39–59.
Periasamy, K., Swamy, B. G. L., 1959: Studies in theAnnonaceae, I. Microsporogenesis inCananga odorata andMiliusa wightiana. — Phytomorphology9, 251–263.
Sauer, W., Ehrendorfer, F., 1984: Notes on the karyosystematics ofAnnonaceae. — Pl. Syst. Evol.146, 47–55.
Sinclair, J., 1955: A revision of the MalayanAnnonaceae. — Gard. Bull. Singapore14, 149–550.
Stanley, R. G., Linskens, H. F., 1974: Pollen. — Berlin-Heidelberg-New York: Springer.
Straka, H., 1975: Pollen- und Sporenkunde. — Stuttgart: G. Fischer.
Verdcourt, B., 1971:Annonaceae. — Fl. Trop. E. Africa14.
Vollesen, K., 1980: Notes onAnnonaceae from Tanzania. — Bot. Not.133, 53–62.
Waha, M., 1985: Pollen ultrastructure and its systematic relevance inBocageopsis, Ephedranthus, Malmea andUnonopsis (Annonaceae). — Pl. Syst. Evol. (in press).
Walker, W. J., 1971a: Pollen morphology, phytogeography, and phylogeny of theAnnonaceae. — Contr. Gray Herb.202, 1–132.
—, 1971b: Contributions to the pollen morphology and phylogeny of theAnnonaceae, I. — Grana11, 45–54.
—, 1972a: Contribution to the pollen morphology and phylogeny of theAnnonaceae, II. — Bot. J. Linn. Soc.65, 173–178.
—, 1972b: Chromosome numbers, phylogeny, phytogeography of theAnnonaceae and their bearing on the (original) basic chromosome number of Angiosperms. — Taxon21, 57–65.
Walker, W. J., Doyle, J. A., 1975: The basis of Angiosperm phylogeny: Palynology. — Ann. Miss. Bot. Gard.62, 664–723.
—,Skvarla, J. J., 1975: Primitively columellaless pollen: A new concept in the evolutionary morphology of Angiosperms. — Science187, 445–447.
—,Walker, A. G., 1981: Comparative pollen morphology of the Madagascan genera ofMyristicaceae (Mauloutchia, Brochoneura, andHaematodendron). — Grana20, 1–17.
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Hesse, M., Morawetz, W. & Ehrendorfer, F. Pollen ultrastructure and systematic affinities ofAnaxagorea (Annonaceae). Pl Syst Evol 148, 253–285 (1985). https://doi.org/10.1007/BF00985928
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DOI: https://doi.org/10.1007/BF00985928