Pollen and Spores: Patterns of Diversification

ISBN-13: 9780198577461 / Angielski / Twarda / 1992 / 408 str.

Blackmore; JR Rudol Barnes; Stephen Blackmore

Opis

Pollen and spores are ubiquitous, and preserve exceptionally well. This, and their enormous structural diversity, offers exceptional opportunities for integrating findings from studies of both recent and fossil material, and for developing new insights into the pathways and processes of diversification. This volume brings together both international authorities and younger researchers who have developed novel approaches from such diverse fields as paleobotany, ontogeny, molecular biology, and systematics. Three main issues are discussed: the evidence provided by the fossil record, the contribution of ontogenetic data, and the methods of systematic analysis. Of special interest are the sections detailing the most recent findings regarding fossil angiosperms and ontogeny in primitive angiosperms. The information provided will be of great interest and relevance to such disparate disciplines as vegetational history, geology, plant taxonomy and plant evolution.

Spis treści

S. Blackmore & S.H. Barnes: Palynological diversity; R.C. Brown & B.E. Lemmon: Sporogenesis in simple land plants; U. Fanning, J.B. Richardson & D. Edwards: A review of in situ spores in Silurian land plants; J. Gray: Tetrahedralites, Nodospora, and the 'cross' tetrad: an accretion of myth; G.A. van Uffelen: The control of spore wall formation; J.H.A. van Konijnenburg van Cittert: Diversification of spores in fossil and extant Schizaeaceae; M.E. Collinson: Diversification of modern heterosporous pteridophytes; W.G. Chaloner & A.R. Hemsley: Heterospory: cul-de-sac or pathway to the seed?; J.A. Doyle & C. L. Hotton: Diversification of early angiosperm pollen in a cladistic context; E-M. Friis, P.R Crane & K. Rraunsgaard Pedersen: Stamen diversity and in situ pollen of Cretaceous angiosperms; M.M. Harley, M.H. Kurmann & I.K. Ferguson: Systematic implications of comparative morphology in selected Tertiary and extant pollen from the Palmae and Sapotaceae; M.S. Zavada: Determining character polarities in pollen; N.I. Gabarayeve: Patterns of development in gymosperm and angiosperm pollen; R. Scotland: A systematic analysis of pollen morphology of Acanthaceae genera with contorted corollas; E.L. Vezey, J.J. Skvarla & S.S. Vanderpool: Characterizing pollen sculpture of three closely related Cappareceae species using quantitive image analysis of scanning electron micrographs; E. Pacini & G.G. Franchi: Diversification and evolution of the tepetum; G. El-Ghazaly & S. Nilsson: Development of tapetum and orbicules of Catharanthus roseus (Apocynaceae); J. Heslop-Harrison & Y. Heslop-Harrison: Structural and functional variation in pollen intines; R.B. Knox & S.C. Ducker: The evolution of gametes - from motility to double fertilization; P.A. Knox, S. Cromer & T. Jarvis: Underwater pollination, three-dimensional search, and pollen morphology: predictions from a supercomputer analysis.