Two resources that may interest you :
PRÊLES et FOUGÈRES PTÉRIDOPHYTES de la Basse-Combraille by Pascal Dubochttp://www.cahiers-naturalistes.fr/cahi ... ugeres.pdf
6.9 MB pdf....lots of photos of ferns and informative text (in French) about ferns in an area of central France
but perhaps of more general interest, Pascal has just uploaded a file on sporangia and spores again including lots of high quality photos - and informative text..if you read French !
Sporanges et spores des Fougères de la Basse-Combraillehttp://www.cahiers-naturalistes.fr/cahi ... -spore.pdf
3.95 MB pdf