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Comparative morphology of monocot pollen and evolutionary trends of apertures and wall structures

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Abstract

Data on pollen aperture and wall ultrastructure are reviewed for the monocots. New ultrastructural data on 30 taxa representing 18 monocot families are also presented. The evolutionary trends of apertures and pollen wall structure are discussed and it is proposed that the evolutionary trends of pollen apertures and wall structure in the monocots parallel those proposed by Walker for the dicots. However, the importance of these trends differ for monocots, suggesting that the selective pressures affecting pollen wall and aperture evolution in dicots and monocots have been similar, but with different emphasis.

Sommaire

Données expérimentales sur l’ouverture de pollen et la ultrastructure du mur des Monocotylédones sont revus. Les nouvelles données expérimentales sur 30 taxa, représantantes 18 familles de Monocotylédones sont aussi presentés. Les cours évolutionnaires des ouvertures et structure du mur de pollen sont discutés et c’est proposé que les cours évolution-naires des ouvertures de pollen et structure du mur en Monocotylédones se mettent en parallèle de ceux proposes par Walker pour les Dicotylédones. Toutefois l’importance de ces cours sont différents pour les Monocotylédones, donnent que la selection naturelle touchant le mur de pollen et les cours évolutionnaires des ouvertures en Dicotylédones et Monocotyledones ont été semblables mais avec des accentuations différantes.

Абстракт

Конспект. Однодольны е обозреваются на дан ные ультраструктуры пыльцевой апертуры и стены. Новые ультраст руктурные данные 30 таксонов, представля ющих 18 родов однодольн ых, также представлены. Обсуждаются эволюци онные направления ап ертур и структуры пыльцевой стены, и предлагается, что эволюционные направления пыльцев ых апертур и структур ы стены для однодольных параллельным тем, кот орые Валкер предлага л для двудольных. Однако, важность этих направлений различа ется для однодольных в том, что отборные дав ления, влиявшие на эво люцию пыльцевой стены и апертуры для д вудольных и однодоль ных, были похожи друг на друга, но отлич ались в важности.

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Literature Cited

  • Ackerman, J. D. andN. H. Williams. 1980. Pollen morphology of the tribe Neottieae and its impact on the classification of the Orchidaceae. Grana Palynol.19: 7–18.

    Google Scholar 

  • —— 1981. Pollen morphology of the Chloraeinae (Orchidaceae: Diurideae) and related subtribes. Amer. J. Bot.68: 1392–1402.

    Article  Google Scholar 

  • Afzelius, B. M. 1956. On the fine structure of the pollen wall inClivia miniata. Bot. Not.108: 141–143.

    Google Scholar 

  • Angold, R. E. 1967. The ontogeny and fine structure of the pollen grain ofEndymion non-scriptus. Rev. Paleobot. Palynol.3: 205–212.

    Article  Google Scholar 

  • Argue, C. L. 1971. Pollen of the Butomaceae and Alismataceae. I. Development of the pollen wall inButomus umbellatus L. Grana Palynol.11: 131–144.

    Google Scholar 

  • —. 1972. Pollen of the Alismataceae and Butomaceae. Development of the nexine inSagittaria lunifolia L. Pollen & Spores14: 5–16.

    Google Scholar 

  • —. 1973. The pollen ofLimnocharis flava Buch.,Hydrocleis nymphoides (Willd.) Buch., andTenagocharis latifolia (Don) Buch. (Limnocharitaceae). Grana Palynol.13: 103–112.

    Google Scholar 

  • —. 1974. Pollen studies in the Alismataceae. Bot. Gaz.135: 338–344.

    Article  Google Scholar 

  • —. 1976. Pollen studies in the Alismataceae with special reference to taxonomy. Pollen & Spores13: 161–202.

    Google Scholar 

  • Ayensu, E. S. andJ. J. Skvarla. 1974. Fine structure of Velloziaceae pollen. Bull. Torrey Bot. Club101: 250–266.

    Article  Google Scholar 

  • Balogh, P. 1979. Pollen morphology of the tribe Cranichideae Endlicher subtribe Spiran-thinae Bentham (Orchidaceae). Orquidea7: 241–260.

    Google Scholar 

  • Bortenschlager, S., G. Erdtman andJ. Praglowski. 1966. Pollenmorphologische Notizen über einige Blütenpflanzen incertae sedis. Bot. Not.119: 160–169.

    Google Scholar 

  • Brighigna, L., F. C. Fiordi andM. R. Palandri. 1981. Ultrastructure investigations on the two-nucleate pollen grain ofTillandsia caputmedusae Morr. (Bromeliaceae). Amer. J. Bot.68: 1033–1041.

    Article  Google Scholar 

  • Carlquist, S. 1961. Pollen morphology of the Rapateaceae. Aliso5: 39–66.

    Google Scholar 

  • Caspers, N. andL. Caspers. 1976. Zur Oberflaechenskulpturierung der Pollinien MediterranerOrchis- undOphyrs- arten. Pollen & Spores18: 203–215.

    Google Scholar 

  • Chakrapani, P. andB. Raj. 1971. Pollen morphological studies in the Burmanniaceae. Grana Palynol.11: 164–179.

    Google Scholar 

  • Chanda, S. 1966. On the pollen morphology of the Centrolepidaceae, Restionaceae and Flagellariaceae with special reference to taxonomy. Grana Palynol.6: 355–415.

    Google Scholar 

  • — andI. K. Ferguson. 1978. Pollen morphology ofCalorophus andEmpodisma (Restionaceae) and its taxonomic significance. Kew Bull.33: 411–415.

    Article  Google Scholar 

  • — andK. Ghosh. 1976. Pollen morphology and its evolutionary significance in Xanthorrhoeaceae. Pages 527–559in I. K. Ferguson and J. Muller. The evolutionary significance of the exine. Academic Press, London.

    Google Scholar 

  • — andJ. Rowley. 1967. Apertural types in pollen of the Restionaceae and Flagellariaceae. Grana Palynol.7: 16–36.

    Google Scholar 

  • Chardard, R. 1958. L’ultrastructure des grains de pollen d’Orchidacées. Rev. Cytol. Biol. Veg.19: 223–235.

    Google Scholar 

  • —. 1969. Aspects infrastructuraux de la maturation des grains de pollen de quelques Orchidacées. Rev. Cytol. Biol. Veg.32: 67–100.

    Google Scholar 

  • Clarke, G. C. S. andM. R. Jones. 1981. The northwest european pollen flora, 23. Dioscoreaceae. Rev. Paleobot. Palynol.33: 45–50.

    Article  Google Scholar 

  • Cronquist, A. 1981. An integrated system of classification of flowering plants. Columbia University Press, New York.

    Google Scholar 

  • Daghlian, C. P. 1981. A review of the fossil record of monocotyledons. Bot. Rev.47: 517–555.

    Article  Google Scholar 

  • Doyle, J. A. 1969. Cretaceous angiosperm pollen of the Atlantic coastal plain and its evolutionary significance. J. Arnold Arbor.50: 1–35.

    Google Scholar 

  • —. 1973. The monocotyledons: Their evolution and comparative biology. V. Fossil evidence on the early evolution of the monocotyledons. Quart. Rev. Biol.48: 399–413.

    Article  Google Scholar 

  • Dressier, R. L. andC. H. Dodson. 1960. Classification and phylogeny in the Orchidaceae. Annals Missouri Bot. Gard.47: 25–68.

    Article  Google Scholar 

  • Dulieu, D. 1973. Etude morphologique de la surface pollinique dePonthieva maculata Lindl. Orchidaceae en microscopie électronique à balagage. Adansonia13: 229–234.

    Google Scholar 

  • Dunbar, A. 1973. Pollen development in theEleocharis palustris group (Cyperaceae). I. Ultrastructure and ontogeny. Bot. Not.126: 197–254.

    Google Scholar 

  • Ehler, N. andR. Schill. 1973. Die Pollenmorphologie der Bromeliaceae. Pollen & Spores15: 13–49.

    Google Scholar 

  • Erdtman, G. 1952. Pollen morphology and plant taxonomy. Angiosperms. Almqvist and Wiksell, Stockholm.

    Google Scholar 

  • Faegri, K. andJ. Iversen. 1964. Textbook of pollen analysis. Munksgaard, Copenhagen.

    Google Scholar 

  • Grant, C. A. 1972. A scanning electron microscope survey of some Maydeae pollen. Grana Palynol.12: 177–184.

    Google Scholar 

  • Gullvag, B. 1964. The fine structure of the pollen ofClivia miniata. Grana Palynol.5: 258–263.

    Google Scholar 

  • Harling, G. 1958. Monograph of the Cyclanthaceae. Acta Horti Berg.18: 1–428.

    Google Scholar 

  • HeslopHarrison, J. 1968a. Tapetal origin of pollen coat substances inLilium. New Phytol.67: 779–786.

    Article  CAS  Google Scholar 

  • —. 1968b. Wall development within the microspore tetradof Lilium loniflorum. Canad. J. Bot.46: 1185–1192.

    Article  CAS  Google Scholar 

  • —. 1968c. Synchrorous pollen mitosis and the formation of the generative cells in massulate orchids. J. Cell Sci.3: 457–466.

    Google Scholar 

  • —. 1971. The pollen wall: Structure and development. Pages 75–98in J. Heslop-Harrison. Pollen: Development and physiology. Appleton-Century-Crofts, New York.

    Google Scholar 

  • —. 1979. Pollen walls as adaptive systems. Annals Missouri Bot. Gard.66: 813–829.

    Article  Google Scholar 

  • Hesse, M. 1980. Entwicklungsgeschichte und Ultrastructur von Pollenkitt und Exine bei nahe vermandten entomophilen und anemophilen Angiospermensippen der Alisma-taceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae und Araceae. Pl. Syst. Evol.134: 229–267.

    Article  Google Scholar 

  • Horvat, F. 1966. Contribution à la connaissance de l’ultrastructure des parois du pollen deTradescantia paludosa L. Grana Palynol.6: 416–434.

    Google Scholar 

  • Huynh, K.-L. 1980. La morphologie du pollen dePandanus subg. Vinsonia (Pandanaceae) et sa signification taxonomique. Pollen & Spores12: 173–189.

    Google Scholar 

  • — andB. C. Stone. 1981. On a new subsection ofPandanus section Cauliflora (Pandanaceae) with paniculate staminate inflorescence structure, distinctive leaf anatomy and pollen morphology. Bot. J. Linn. Soc.83: 213–220.

    Google Scholar 

  • Kedves, M. 1980. Morphological investigations of recent Palmae pollen grains. Acta Bot. Acad. Sci. Hung.26: 339–373.

    Google Scholar 

  • Kress, W. J., D. E. Stone andS. C. Sellers. 1978. Ultrastructure of exineless pollen:Heliconia (Heliconiaceae). Amer. J. Bot.65: 1064–1076.

    Article  Google Scholar 

  • Kuprianova, L. A. 1948. Pollen morphology and the phylogeny of the monocotyledons. Comm. Komarov Bot. Inst. Acad. Sci. USSR1: 163–262.

    Google Scholar 

  • —. 1967. Apertures of pollen grains and their evolution in angiosperms. Rev. Paleobot. Palynol.3: 73–80.

    Article  Google Scholar 

  • Ladd, P. G. 1977. Pollen morphology of some members of the Restionaceae and related families, with notes on the fossil record. Grana Palynol.16: 1–14.

    Google Scholar 

  • Larson, D. A. 1965. Fine structural changes in the cytoplasm of germinating pollen. Amer. J. Bot.52: 139–154.

    Article  CAS  Google Scholar 

  • —,J. J. Skvarla andC. W. Lewis. 1962. An electron microscope study of exine stratification and fine structure. Pollen & Spores4: 233–246.

    Google Scholar 

  • Lee, R. E. 1961. Pollen dimorphism inTripogandra grandiflora. Baileya9: 53–56.

    Google Scholar 

  • Liem, A. S. N. andJ. van Andel. 1968. Electron microscopical observations on pollen grains of some grass species. Acta Bot. Neerl.17: 248–257.

    Google Scholar 

  • Maguire, B. 1969. Velloziaceae. In: Botany of the Guayana Highland—Part VII. Mem. New York Bot. Gard.18: 36–41.

    Google Scholar 

  • Mahabale, T. S. 1967. Pollen grains in the Palmae. Rev. Paleobot. Palynol.4: 299–304.

    Article  Google Scholar 

  • Majumbar, S. K. 1972. Ultrastructure ofAstroloba andHaworthia pollen wall. 30th Annual Meeting, 1st Pacific Reg. Conf. Electron Microscopy, Los Angeles: 220–221.

    Google Scholar 

  • Mattsson, O. 1976. The development of dimorphic pollen inTripogandra (Commelinaceae). Pages 168–183in I. K. Ferguson and J. Muller. The evolutionary significance of the exine. Linn. Soc. Sym. Ser. No. 1, Academic Press, London.

    Google Scholar 

  • Mepham, R. H. andG. R. Lane. 1969. Role of the tapetum in the development ofTrad escantia pollen. Nature221: 282–284.

    Article  Google Scholar 

  • —— 1970. Observations on the fine structure of developing microspores ofTradescantia bracteata. Protoplasma70: 1–20.

    Article  Google Scholar 

  • Meyer, N. R. 1966. Investigations of the morphology of pollen grains of Nyphaeaceae and Helobiae for its classification and phylogeny. Pages 30–34in Znachenia palinologicheskogo analiza dlya stratigrafii i paleofloristiki. Nauka, Moskva.

    Google Scholar 

  • — andA. M. Yaroshevskaya. 1973. Electron microscopic investigation of pollen wall development of Angiospermae. Pages 70–73in Methodical problems of palynology. Nauka, Moscow.

    Google Scholar 

  • Miyoshi, N. 1982. Noteworthy palynomorphs: Pollen grains united in dyads. I.C.P. Newsltr.5:7.

    Google Scholar 

  • Moore, H. E. 1973. The major groups of palms and their distribution. Gentes Herb.11: 27–141.

    Google Scholar 

  • Muller, J. 1979. Form and function in angiosperm pollen. Annals Missouri Bot. Gard.66: 593–632.

    Article  Google Scholar 

  • —. 1981. Fossil pollen records of extant angiosperms. Bot. Rev.47: 1–142.

    Article  Google Scholar 

  • Nair, P. K. K. 1960. Pollen grains of cultivated plants. I.Canna L. J. Indian Bot. Soc.39: 373–381.

    Google Scholar 

  • — andM. Sharma. 1963. Pollen grains ofCocos nucifera L. Grana Palynol.4: 373–379.

    Google Scholar 

  • —— 1965. Pollen morphology of the Liliaceae. J. Palynology Lucknow1: 38–61.

    Google Scholar 

  • Newton, G. D. andN. H. Williams. 1978. Pollen morphology of the Cypripedioideae and the Apostasioideae (Orchidaceae). Selbyana2: 169–182.

    Google Scholar 

  • Nilsson, S., J. Praglowski andL. Nilsson. 1977. Atlas of airborne pollen grains and spores in northern Europe. Naturoch Kultur, Stockholm.

    Google Scholar 

  • Panchukschurappa, M. G. 1965. Gametophyte and pollen structure inFurcraea gigantea Wul. Palynol. Bull. Lucknow1: 58–60.

    Google Scholar 

  • Parthasarathy, M. V. 1970. Fine structure of pollen surface in palms. Principes14: 55–62.

    Google Scholar 

  • Pettitt, J. M. 1981. Reproduction in seagrasses: Pollen development inThalassia hem-prichii, Halophila stipulacea andThalassodendron ciliatum. Ann. Bot.48: 609–622.

    Google Scholar 

  • — andA. C. Jermy. 1975. Pollen in hydrophilous angiosperms. Micron5: 377–405.

    Google Scholar 

  • Poole, M. M. andP. R. Hunt. 1980. Pollen morphology and the taxonomy of the Commelinaceae: An exploratory survey. American Commelinaceae. VIII. Kew Bull.34: 639–660.

    Article  Google Scholar 

  • Punt, W. 1968. Morphology of the American species of the subfamily Costoideae (Zingiberaceae). Rev. Paleobot. Palynol.7: 31–43.

    Article  Google Scholar 

  • — andJ. W. Reumer. 1981. Alismataceae. Rev. Paleobot. Palynol.33: 27–44.

    Article  Google Scholar 

  • — andJ. G. Wessels Boer. 1966a. A palynological study in geonomoid palms. Acta Bot. Neerl.15: 226–254.

    Google Scholar 

  • —— 1966b. A palynological study in coccoid palms. Acta Bot. Neerl.15: 255–265.

    Google Scholar 

  • Radulescu, D. 1970a. Recherches morphopalynologiques sur les espèces d’Iridaceae. Lucrarile Gradinii Bot. Bucuresti1968: 311–350.

    Google Scholar 

  • —. 1970b. Recherches morphopalynologiques sur les espèces d’Iridaceae de la flore roumaine. Lucrarile Gradinii Bot. Bucuresti1968: 351–390.

    Google Scholar 

  • —. 1972. Recherches morphopalynologiques sur les espèces d’Amaryllidaceae. Lucrarile Gradinii Bot. Bucuresti1970-71: 245–273.

    Google Scholar 

  • —. 1973a. La morphologie du pollen chez quelques Haemodoraceae. Lucrarile Gradinii Bot. Bucuresti1972–73: 123–132.

    Google Scholar 

  • —. 1973b. Contributions morphopalynologiques concernant quelques Liliiflorae. Lucrarile Gradinii Bot. Bucuresti1972-73: 87–104.

    Google Scholar 

  • —. 1973c. Recherches morphopalynologiques sur la famille Liliaceae. Lucrarile Gradinii Bot. Bucuresti1972–73: 133–248.

    Google Scholar 

  • —. 1973d. Liliiflorae discussions et considérations phylogénétiques à l’ aide de quelques recherches morphopalynologiques. Lucrarile Gradinii Bot. Bucuresti1972-73: 249–283.

    Google Scholar 

  • Rodionenko, G. I. 1956. The pollen ofIris and a few notes on its evolution. Akad. Nauk USSR, Dokl.110: 699–702. (In Russian).

    Google Scholar 

  • Roland, F. 1965. Précisions sur la structure et l’ultrastructure d’une tétrade calymmée. Pollen & Spores7: 5–8.

    Google Scholar 

  • —. 1968. Étude de l’ultrastructure des apertures. II. Pollen à sillons. Pollen & Spores10: 479–519.

    Google Scholar 

  • Rowley, J. R. 1959. The fine structure of the pollen wall in the Commelinaceae. Grana Palynol.2: 3–31.

    Google Scholar 

  • —. 1960. The exine structure of “cereal” and “wild” type grass pollen. Grana Palynol.2: 9–15.

    Google Scholar 

  • —. 1962a. Nonhomogeneous sporopollenin in microspores ofPoa annua. Grana Palynol.3: 3–19.

    Google Scholar 

  • —. 1962b. Stranded arrangement of sporopollenin in the exine of microspores ofPoa annua. Science137: 526–528.

    Article  PubMed  Google Scholar 

  • —. 1963. Ubisch body development inPoa annua. Grana Palynol.4: 25–36.

    Google Scholar 

  • —. 1964. Formation of the pore in pollen ofPoa annua. Pages 59–69in H. F. Linskens. Pollen physiology and fertilization. North Holland Publishing Co., Amsterdam.

    Google Scholar 

  • —. 1967. Fibrils, microtubules and lamellae in pollen grains. Rev. Paleobot. Palynol.3: 218–226.

    Article  Google Scholar 

  • —. 1975. Germinal apertural formation in pollen. Taxon24: 17–25.

    Article  Google Scholar 

  • — andA. O. Dahl. 1962. The aperture of the pollen grain inCommelinanta. Pollen & Spores4: 221–232.

    Google Scholar 

  • — andJ. J. Skvarla. 1975. The glycocalyx and initiation of exine spinules on microspores ofCanna. Amer. J. Bot.62: 479–485.

    Article  Google Scholar 

  • Schill, R. 1978. Palynologische Untersuchungen zur systematischen Stellung der Apostasiaceae. Bot. Jahrb. Syst.99: 353–362.

    Google Scholar 

  • — andW. Pfeiffer. 1977. Untersuchungen an Orchideenpollinien unter besonderer Berucksichtigung ihrer Feinskulpturen. Pollen & Spores19: 5–118.

    Google Scholar 

  • Schwanitz, G. 1967a. Untersuchungen zur Postmeiotischen Mikrosporogenese. I. Morphogenese desRuppia Pollens. Pollen & Spores9: 9–48.

    Google Scholar 

  • —. 1967b. Untersuchungen zur Postmeiotischen Mikrosporogenese. II. Vergleichende Analyse der Pollenwicklung sub- und emers Bluehender Arten. Pollen & Spores9: 183–209.

    Google Scholar 

  • Shpakov, A. M. andS. M. Kolesnickov. 1970. Development of pollen grains in the generaNajas andCeratophyllum. Izv. Akad. Nauk, Moldav. SSR, Biol. Khim. Nauk, Kichinev5: 73–74.

    Google Scholar 

  • Skvarla, J. J. andD. A. Larson. 1966. Fine structural studies ofZea mays pollen. I. Cell membranes and exine ontogeny. Amer. J. Bot.53: 1112–1125.

    Article  Google Scholar 

  • — andJ. R. Rowley. 1970. The pollen wall ofCanna and its similarity to the germinal apertures in other pollen. Amer. J. Bot.57: 519–529.

    Article  Google Scholar 

  • de Sloover, J.-L. 1961. Note sur le pollen deLemna minor L. Pollen & Spores3: 5–10.

    Google Scholar 

  • Southworth, D. andD. Branton. 1971. Freeze-etched pollen walls ofArtemisia pycnoce-phala andLilium humboldtii. J. Cell Sci.9: 193–207.

    PubMed  CAS  Google Scholar 

  • Sowumni, M. A. 1968. Pollen morphology in the Palmae with special reference to trends in aperture development. Rev. Paleobot. Palynol.7: 45–53.

    Article  Google Scholar 

  • —. 1972. Pollen morphology of the Palmae and its bearing on taxonomy. Rev. Paleobot. Palynol.13: 1–80.

    Article  Google Scholar 

  • Stone, D. E., S. C. Sellers andW. J. Kress. 1979 (1980). Ontogeny of exineless pollen inHeliconia, a banana relative. Annals Missouri Bot. Gard.66: 731–755.

    Article  Google Scholar 

  • ——— 1981. Ontogenetic and evolutionary implications of a neotenous exine inTapeinochilos (Zingiberales: Costaceae). Amer. J. Bot.68: 49–63.

    Article  Google Scholar 

  • Takahashi, M. 1980. On the development of the reticulate structure ofHemerocallis pollen (Liliaceae). Grana Palynol.19: 3–5.

    Article  Google Scholar 

  • —. 1982. Pollen morphology in North American species ofTrillium. Amer. J. Bot.69: 1185–1195.

    Article  Google Scholar 

  • — andK. Sharma. 1980. Pollen morphology of the genusDisporum Salisb. Sci. Rpt. Tohoku Univ., 4th Ser., Biol.38: 33–55.

    Google Scholar 

  • Thanikaimoni, G. 1965. Contribution to the pollen morphology of Eriocaulaceae. Pollen & Spores7: 181–191.

    Google Scholar 

  • —. 1969. Esquisse palynologique des Aracées. Trav. Sect. Sci. Techn. Inst. Franc. Pondicherry5: 1–31.

    Google Scholar 

  • —. 1970a. Les palmiers palynologie et systématique. Trav. Sect. Sci. Techn. Inst. Franc. Pondicherry11: 1–286.

    Google Scholar 

  • —. 1970b. Pollen morphology, classification and phylogeny of Palmae. Adansonia, Ser. 2.10: 347–365.

    Google Scholar 

  • Trevisan, L. 1980. Ultrastructural notes and considerations onEphedripites, Eucommi-idites andMonosulcites pollen grains from Lower Cretaceous sediments of southern Tuscany (Italy). Pollen & Spores22: 85–132.

    Google Scholar 

  • Ueno, J. 1962. On the fine structure of the pollen walls of Angiospermae. II.Victoria. J. Inst. Polytech. Osaka City Univ. Ser. D Biol.13: 99–104.

    Google Scholar 

  • — andS. Kitaguchi. 1961. On the fine structure of the pollen walls of Angiospermae. I. Nymphaeaceae. J. Inst. Polytech. Osaka City Univ. Ser. D. Biol.12: 83–89.

    Google Scholar 

  • Walker, J. W. 1974a. Evolution of exine structure in the pollen of primitive angiosperms. Amer. J. Bot.61: 891–902.

    Article  Google Scholar 

  • —. 1974b. Aperture evolution in the pollen of primitive angiosperms. Amer. J. Bot.61: 1112–1137.

    Article  Google Scholar 

  • —. 1976. Evolutionary significance of the exine in the pollen of primitive angiosperms. Pages 251–307in I. K. Ferguson and J. Muller (eds.). The evolutionary significance of the exine. Academic Press, London.

    Google Scholar 

  • Walker, J. W. andJ. A. Doyle. 1975. The basis of angiosperm phylogeny: Palynology. Annals Missouri Bot. Gard.62: 644–723.

    Google Scholar 

  • Williams, N. H. andC. R. Broome. 1976. Scanning electron microscope studies of orchid pollen. Amer. Orchid Soc. Bull.45: 699–707.

    Google Scholar 

  • Yuhl, D. E. andS. K. Majumbar. 1981. Light and electron microscope studies ofHaworthia (Liliaceae) pollen. Phyton41: 203–210.

    Google Scholar 

  • Zavada, M., X.-L. Zu andJ. M. Edwards. 1983. On the taxonomic status ofLophiola aurea Ker-Gawler. Rhodora85: 73–81.

    Google Scholar 

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  1. Michael S. Zavada

    Present address: Department of Biology, Indiana University, Jordan Hall 138, 47405, Bloom-ington, Indiana

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    Michael S. Zavada

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Zavada, M.S. Comparative morphology of monocot pollen and evolutionary trends of apertures and wall structures. Bot. Rev 49, 331–379 (1983). https://doi.org/10.1007/BF02861086

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