magnified dryopteris

Listing 1 - 1 from 1 for magnified dryopteris

Images accompanying the Flora of Roosevelt
... magnified Dryopteris marginalis upper part of frond pinnae basal pinnae and upper stipe pinnulae sori/indusia sori/indusia magnified Dryopteris x triploidea frond basal pinna sori #1 sori magnified #1 sori #2 sori magnified ... sterile frond sporangia magnified Polypodium virginianum frond (drought stressed) pinnae sori sori magnified Polystichum acrostichoides frond sori sori magnified pinnae with ...
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