Dennstaedtia producta

by Michael Sundue | Apr 19, 2017 | Ferns, New Collections, PNN Las Orquideas | 4 comments

Collection data (M. Sundue, 3183 )

Classification & Common Names

Class: Polypodiopsida
Family: Dennstaedtiaceae
Genus: Dennstaedtia Moore
Species: Dennstaedtia producta Mett.

Collection Data

Collection Date: 03-IX-2012
Collection Number: 3183
Primary collector: M. Sundue
Collected by: M. Sundue, J. Betancur, P. Pedraza, G. Giraldo, M. Jaimes, E. Tineo, M. Londono, A. Duque, L. Arias
Determined by: M. Sundue
Habitat: Primary Forest
Habit: Terrestrial
Specimen locations: COL, NY, VT

Dennstaedtia producta

Collection Location

General location: Parque Nacional Natural Las Orquideas
Country: Colombia
State or Province: Antioquia
Municipality: Frontino
Coordinates: 6.63908333,-76.20836111

About the Author

Michael Sundue

My field work is centered in Colombia, and Papua New Guinea. I am based at the Royal Botanic Garden Edinburgh (E). If you have any ferns that you want identified, please send them to me!

Selaginella hoffmannii

by Michael Sundue | Dec 13, 2014

Certainly among the most handsome neotropical Selaginellas.

A large fern, with a beautiful rhizome (for those of us who love rhizomes almost more than the rest of a plant...). Notice the neat modular structure, with a regular alteration of left-right oriented units composed each of a frond and an extra-axillary bud. [gallery...

Polypodium ursipes

by Michael Sundue | Oct 16, 2014

4 Comments

David Greenwood on April 19, 2017 at 8:26 pm

Very cool Michael!

Just like my little fossil!
Reply
Benjamin Øllgaard on May 1, 2017 at 7:48 pm

This seems closer to Dennstaedtia producta than to our Ecuadorian D matthewsii ??
Reply
Michael Sundue on May 1, 2017 at 8:48 pm

Thanks for weighing in Benjamin. I appreciate your expertise on these plants. I can see why you say D. producta is a better match, but I am not entirely sure. The sori are not as long-stalked as those in D. producta, and I only see a single proliferous bud on the petiole. However, this collection may be a young leaf as you point out in your treatment in Nord. J. Bot. Do you know of indument characters that can help distinguish them?

Here are links to the images of the pressed material at VT. Maybe you could take a look at these and see if you still think D. producta is the best name to apply.

http://nansh.org/portal/collections/individual/index.php?occid=11296132&clid=0

http://nansh.org/portal/collections/individual/index.php?occid=11296130&clid=0

http://nansh.org/portal/collections/individual/index.php?occid=11296131&clid=0
Reply
Michael Sundue on December 7, 2022 at 6:05 pm

This has been changed to D. producta following comments from B. Øllgaard. Thanks!
Reply