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A Digital Herbarium

Debunking myths about gametophyte ecology

Posted by on Dec 14, 2015 in Ferns, Videos | 3 comments

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Wes Testo discusses desiccation tolerance in ferns

Posted by on Nov 10, 2015 in Ferns, Videos | 1 comment

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Eddie Watkins discusses the fern life cycle in Costa Rica

Posted by on Nov 9, 2015 in Ferns, Videos | Comments Off on Eddie Watkins discusses the fern life cycle in Costa Rica

Eddie Watkins is Associate Professor of Biology at Colgate University in New York

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Fern hybrids: Adiantum example (with Robbin C. Moran)

Posted by on Dec 11, 2014 in Videos | 1 comment

Robbin C. Moran. Curator of Ferns and Lycophytes at The New York Botanical Garden Adiantum x variopinnatum Jermy & T. G. Walker is...

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Fern hybrids: Lomariopsis example (with Robbin C. Moran)

Posted by on Dec 11, 2014 in Videos | Comments Off on Fern hybrids: Lomariopsis example (with Robbin C. Moran)

Robbin C. Moran. Curator of Ferns and Lycophytes at The New York Botanical Garden. Lomariopsis x farrarii R.C. Moran & J.E. Watkins...

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Paulo Günter Windisch

Posted by on Oct 5, 2014 in Videos | Comments Off on Paulo Günter Windisch

This video is part of a project entitled “Memória em vídeo dos Botânicos do Brasil” [www.filmesnajanela.com.br/botanica]. It...

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María Teresa Murillo

Posted by on Sep 30, 2014 in Videos | Comments Off on María Teresa Murillo

This short biopic documents María Teresa Murillo (b. 1929), a Colombian pteridologist. Through her collections, publications, and...

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Angiopteris sporangium dehiscence

Posted by on Sep 25, 2014 in Videos | 1 comment

When I sat down in an idle moment to watch a sporangium of Angiopteris opening, I was not expecting to see anything more interesting than...

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Gametophyte development in Ceratopteris richardii

Posted by on Feb 13, 2014 in Videos | Comments Off on Gametophyte development in Ceratopteris richardii

Philip Lintilhac (UVM Plant Biology Dept.) produced these high resolution videos of Ceratopteris richardii gametophyte development....

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Pteridology – Selaginella lepidophylla

Posted by on Oct 11, 2012 in Videos | Comments Off on Pteridology – Selaginella lepidophylla

Selaginella lepidophylla (Selaginellaceae), native to dry forests from Texas and New Mexico to southern Mexico, is known for its ability...

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Pteridology – Equisetum spores

Posted by on Sep 24, 2012 in Videos | Comments Off on Pteridology – Equisetum spores

Green spores of Equisetum diffusum D. Don (Equisetaceae). The spores of this group of ferns have four strap-like appendages, called...

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Pteridology – Spore shooting

Posted by on Sep 24, 2012 in Videos | Comments Off on Pteridology – Spore shooting

This video shows the process of sporangial dehiscence [i.e., the splitting of the sporangial capsule and the discharge of spores] on...

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Pteridology – Little Nitrogen Factories

Posted by on Sep 24, 2012 in Videos | Comments Off on Pteridology – Little Nitrogen Factories

Azolla sp., the world’s smallest fern, and its nitrogen-fixing symbiont Anabaena azollae. Although small, Azolla is the...

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Pteridology – Swimming sperms

Posted by on Sep 23, 2012 in Videos | Comments Off on Pteridology – Swimming sperms

Swimming sperms of Elaphoglossum glaziovii (Fée)...

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Pteridology – Bursting antheridium

Posted by on Sep 23, 2012 in Videos | Comments Off on Pteridology – Bursting antheridium

This video shows an antheridium (i.e., male sex organ) of Elaphoglossum glaziovii (Fée) Brade releasing its antherozoids (i.e., motile...

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