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Comparative phytochemical investigations were carried out on sporopollenins of the follow­ ing plant species: Bryophyta -Reboulia hemisphaerica and Polytrichum strictum; Pteridophyta -Equisetum arvense, Selaginella selaginoides micro-and megaspores; Gymnospermae -Cycas circinalis; Angiospermae -Typha angustifolia and Tulipa cv. “Apeldoorn”. Although the range of the analyses included species from the Bryophyta to the Angiospermae, fundamen tal correspondences could be detected in the  13 C NMR and FTIR spectra concerning the occur­rence of aliphatics, aromatics, ether and carbonyl/carboxylic functions in varying degrees. While the amount of aliphatics strongly dominated in the molecular structure of all other sporopollenins investigated here, it was found in sporopollenin of Equisetum arvense in a much lower extent. Despite the different morphology of Selaginella selaginoides micro-and mega­ spores, their sporopollenin spectra were nearly identical

Comparative FTIR and 13 C CP/MAS NMR Spectroscopic Investigations on Sporopollenin of Different Systematic Origins