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Coastal Woodfern – Dryopteris arguta – Dryopteridaceae – Willow Creek (7) (Dryopteris arguta)

American Parsley Fern – Cryptogramma acrostichoides – Pteridaceae – Kootenai National Forest – North Fork Bull Creek (6) (Cryptogramma acrostichoides)

Myriopteris sp – Catalina State Park – Canyon Loop (2) (Myriopteris sp)

Fronds 1 m Stem ca 3 m (10) (Stenochlaena palustris)

Purple-stemmed Cliffbrake – Pellaea atropurpurea – Pteridaceae – Huachuca Mountains – Scheelite Canyon Trail (5) (Pellaea atropurpurea)

Western Sword Fern – Polystichum munitum – Dryopteridaceae – Willow Creek (4) (Polystichum munitum)

Fan Clubmoss – Diphasiastrum digitatum – Lycopodiaceae – Gandy Dancer Trail (5) (Diphasiastrum digitatum)

Alaskan Clubmoss – Diphasiastrum sitchense – Lycopodiaceae – Kaniksu National Forest – Boulder Meadow Trail (4) (Diphasiastrum sitchense)

Windham’s Scaly Cloak Fern – Astrolepis windhamii – Pteridaceae – Santa Rita Mountains – Agua Caliente Area (4) (Astrolepis windhamii)

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Ezequiel Vera @ezequielvera·

17 Sep

@helechosylicof1 @guguitter Sumo un pariente muy cercano (tal vez la misma especie) del Eoceno (unos 50 millones de años) de Río Negro :-)

#FossilFriday #FernFriday

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British Pteridological Society @FernBPS·

16 Jul

Up, up and....er gone: A great paper by @batkesp @SETarvin. Nowhere to escape – Diversity and community composition of ferns and lycophytes on the highest mountain in Honduras

https://www.cambridge.org/core/journals/journal-of-tropical-ecology/article/nowhere-to-escape-diversity-and-community-composition-of-ferns-and-lycophytes-on-the-highest-mountain-in-honduras/8E676ED96AAA0E727D1BC92722154C18#

Reply on Twitter 1416057537808326660 Retweet on Twitter 14160575378083266603 Like on Twitter 14160575378083266609 Twitter 1416057537808326660

Pteridophyte Papers @PteridophytePub·

14 Sep

Carbon reservoir perturbations induced by Deccan volcanism: Stable isotope and biomolecular perspectives from shallow marine environment in Eastern India http://dlvr.it/S7YzGJ

Reply on Twitter 1437847123882508289 Retweet on Twitter 1437847123882508289 Like on Twitter 1437847123882508289 Twitter 1437847123882508289

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Taxa on this site

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FOTW VS. WORLDWIDE DIVERSITY

98.04%

83.68%

12.13%