Grana Palynologica 1966 Number 3 [antikvár]

SPORODERM MORPHOLOGY AND MORPHOGENESIS. A COLLOCATION OF DATA AND SUPPOSITIONSG. ERDTMANMorphologically defined layersMorphologically defined layers and zones as seen by means of ordinary light microscopy in unsectioned, unstained microspores or pollen grains, are as follows (schemes only; the right hand scheme is more detailed than that to the left):perineperineexineexinesexinesexine 1948, 1952 ("ektexine" 1943)tectumtectum ("ectosexine" 1952)baculabacnla ("endosexine" 1952)nexinenexine ("endexine" 1943)nexine 1 (1960)i nexine 2 (1960)2 intineintineFor explanations and illustrations of terms and morphotj'pes, see Glossary, p. 459 (the morphotypes are here referred to as "examples"), and palynograms, p. 24 and Figs. 6-261, in G. Erdtman, Pollen Morphology and Plant Taxonomy, Angiosperms. Stockholm and Waltham, Mass. 1952 (olT-set edition with sundry addenda is^ Not to be confounded with the non-refracting zone previously referred to as "ectonexine"." Not to be confounded with the refracting zone previously referred to as "endo-nexine".