A. P. Shalimov, A. I. Shmakov


Spores of type specimens of Polypodium aleuticum A.E. Bobrov are studied by SEM-method. The morphology of the spores has been studied and described for comparative purposes. The results showed characteristic features of P. aleuticum exospores different from P. glycyrrhiza D.C. Eaton, which gives the basis for acknowledgment the independence of the investigated species. 


Polypodium; ferns; type species; spore; morphology; Polypodium aleuticum; Aleutian Islands.

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DOI: http://dx.doi.org/10.15421/201632

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