Campyloneurum xalapense
...
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Country: Mexico
Cystopteris fragilis
Echinate monolete...
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Holodictyum ghiesbreghtii
Reticulate monolete spore in equatorial...
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Dennstaedtia globulifera
Heteropolar verrugate-papillate trilete spore in equatorial, proximal and distal...
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Llavea cordifolia
Llavea cordifolia trilete gemmate spores seen in different views; equatorial, distal and...
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