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Cyrtomium fortunei sensu lato

This is what I originally wrote for this blog:

I found several plants of a Cyrtomium which I believe is C. caryotideum
There were as many as 10 plants , some small and one quite large
They were by the side of the public footpath on a bank together with Asplenium scolopendrium and Polystichum setiferum
This path is right on the Hampshire/Sussex border in Markwells Wood, near Finchdean

Then I asked Dr Fred Rumsey for his opinion and he thought it was Cyrtomium fortunei sensu lato (see comments)
It did not look like the Cyrtomium fortunei on my allotment but it does look quite a bit like Cyrtomium fortunei ‘Clivicola’

I am still quite pleased with myself as I think this is the first time I have found an “alien” fern in the countryside
We have had a relatively hard winter and this fern seemd to be doing better than the ferns in my garden

International Fern Day

After a wide consultation on the best time to organise the “International Fern Day”, we have agreed on the date of 24 June 2023.
Here is a link to two texts that are currently available in English, French, Spanish, Portuguese, Italian and German. We are looking for translators (volunteers) for any other language.
International Fern Day, Presentation
International Fern Day, How to participate
A short film has also been made. It aims to announce the date and to show the international character of the event.
Video presentation: International Fern Day
A specific e-mail address has been created:
A Facebook group entitled “International Fern Day” is being prepared and should be active at the beginning of March. Everyone will be able to post events directly or to send us information that we will then publish.
We encourage you to share these links so that many of us can participate in this day.
Do not hesitate to contact us via the e-mail address.
For the organisation collective
Yves Philippot

International Ferns Day

What if everywhere on our planet, on the same day, we put ferns in the spotlight. There are so many enthusiasts of these plants whether they are arborescent or tiny, terricolous, epiphytic or aquatic. Many ferns are listed on the IUCN Red List of Threatened Species. Focusing the spotlight on these ancestral plants annually, and for a specific day, will help raise awareness of species conservation and the establishment of good practices among gardeners.

A mythical plant

In many countries of the world the fern has a very important symbolic role. This is the case, for example, in New Zealand, where the graphics of fronds or fern crosiers are everywhere; in tattoos, amulets, rugby team jerseys… and even on the official logos of the state. In New Caledonia, Vanuatu and many other countries ferns also have strong symbolic values.

Since 2002, Monica Palacios-Rios, botanist at the University of Veracruz in Mexico, specialist in ferns and passionate about Maori culture, has been organizing a day she calls “The Day of the Ferns”. Every year, on February 6, New Zealand’s National Day, she celebrates the fern with her students.

The idea
From this original experience was born the idea of organizing “an International Day of Ferns”. Indeed, these plants are present on all continents. They are used symbolically, and also in food, traditional medicine, art, beliefs, witchcraft, domestic uses, and in gardens. Specialized associations are internationally renowned, such as the British Pteridological Society and the American Fern Society; they have thousands of members. Many fern enthusiasts communicate on social networks on this theme. For example, we have identified more than 75 Facebook groups around the world on the theme of ferns.

The idea is that, on the same day all over the world, activities and animations on the theme of ferns will be offered. These events can be organized by associations, universities, museums, botanical gardens, nature reserves, artists, schools, municipalities, individuals. This can take the form of fern discovery outings, conferences, exhibitions, film screenings, competitions etc.

A great challenge
The fern is a universal subject, emblematic by its very ancient origin, by the fact that it does not produce flowers and that it has a very particular mode of reproduction. All over the world, it can help draw attention to the threats to these species and also to the entire biodiversity due to human activities.

International relations on such a subject can create links between the inhabitants of different countries. We see it daily on Facebook in the 75 fern groups. Discussing ferns with members from different cultures helps to get to know each other better, thus contributing to greater brotherhood. To this end, it would be necessary for the participants to communicate with each other and to report on all the activities undertaken that day at the planetary level perhaps using social networks.

The date
As for the date we obviously thought of February 6, for Waitanguy day, New Zealand’s national holiday, but this date poses a problem because, if it is favorable in the southern hemisphere, it is not for the northern hemisphere, ferns at that time being in vegetative rest. The ideal would therefore be to find a time period that suits everyone. It might be better to choose a Saturday or Sunday, with a regular deadline, rather than a date, the weekend being more favorable to mobilize the public.

Your opinion
Currently we are in a consultation phase in order to collect the opinions of the various participants. At the end of this consultation a dossier will be distributed to the interested parties.
In view of the interest you have in Pteridophytes, we would like, on the one hand, to know your opinion on this project, and on the other hand, to know if you or your organization could get involved in the definition and implementation of the events organized during this “International Day of Ferns”

Please forward your comments and proposals to:

Collective “For an International Day of Ferns”

31 Couesnongle
56220 Saint-Jacut-les-Pins

Contact by email

Pteridophyte Images for the Ascension Island

Further to the previous post on Pteridophyte List for the Ascension Island here are some images supplied by Phil Lambdon

Anogramma ascensionis
Anogramma ascensionis detail
Asplenium ascensionis
Asplenium ascensionis detail
Christella parasitica
Christella parasitica detail
Histiopteris incisa
Histiopteris incisa detail
Hymenophyllum capillaceum
Hymenophyllum capillaceum detail
Nephrolepis species
Nephrolepis species detail
Ophioglossum polyphyllum
Psilotum nudum
Psilotum nudum detail
Pteris adscensionis
Ptisana purpurascens
Ptisana purpurascens detail
Stenogrammitis ascensionensis

Pteridophyte List for the Ascension Island

Wikipedia page for the Ascension Island
The ferniest places in the world

PteridaceaeAnogramma ascensionisYesEndemicSurvivingOnly one individual surviving in the wild
Plants: From Roots to Riches - Plant Invaders - BBC Sounds
AspleniaceaeAsplenium ascensionisYesEndemicSurviving
PolypodiaceaeStenogrammitis ascensionensisYesEndemicSurviving
MarattiaceaePtisana purpurascensYesEndemicSurviving
PteridaceaePteris adscensionisYesEndemicSurviving
NephrolepidaceaeNephrolepis sp.YesPossibly endemicSurvivingA very scaly species with uncertain affinties: intermediate between N. biserrata, N. hirsutula and N. brownii
HymenophyllaceaeHymenophyllum capillaceumYesNear endemicSurviving
LycopodiaceaeLycopodiella cernuumYesNativeSurviving
DennstaedtiaceaeHistiopteris incisaYesNativeSurviving
OphioglossaceaeOphioglossum polyphyllumYesNativeSurviving
PsilotaceaePsilotum nudumYesNativeSurviving
ThelypteridaceaeChristella parasiticaYesNativeSurviving
DryopteridaceaeDryopteris ascensionisYesEndemicExtinctLast recorded in the 1950s
LycopodiaceaePhlegmariurus saururusYesNativeExtinctLast recorded in the 1890s
BlechnaceaeBlechnum punctulatumYesNativeExtinctLast recorded in the 1960s
AspleniaceaeAsplenium aethiopicum?Possibly nativeExtinctNot recorded since the 1960s but quite possibly native
DennstaedtiaceaeHypolepis rugosula?Possibly nativeExtinctNot recorded since the 1800s but quite possibly native
PteridaceaeAdiantum capillus-venerisNoInvasiveSurviving
PteridaceaeAdiantum raddianumNoInvasiveSurviving
NephrolepidaceaeNephrolepis exaltataNoLocally invasiveSurviving
PolypodiaceaePlatycerium bifurcatumNoNaturalisedSurviving
PteridaceaePteris creticaNoNaturalisedSurviving
PolypodiaceaePhlebodium aureumNoNaturalisedSurviving

Ophioglossum vulgatum v O. azoricum

Ashley Basil and I have been looking at Ophioglossums in the New Forest with GPS locations provided by Alison Bolton

It is dificult to tell these small ferns apart and it seems that small O. vulgatum can look like O. azoricum
There are some useful pictures in the The illustrated field guide to ferns and allied plants of the British isles by Jermy, C. & Camus, J. on pages 21-23
I think it is instructive in order to identify these plants to dig them up and look at the structures below the ground
It seems to be fairly true that O. azoricum does come up in pairs whereas O. vulgatum does not

Ophioglossums at Aerial Field, Farlington Marshes

I found 10 colonies of Ophioglossum vulgatum in the Aerial field, Farlington Marshes
I had been told of these ferns previously and some are “old” sites and some are new
The field is used for cattle grazing and the young cows are friendly and inquisitive
The field is rough pasture with occasional brambles bushes
The cows do not eat the brambles and the Ophioglossum colonies seem to establish themselves at the edges of the bushes and then sometimes creep out onto the grassland
I am guessingh the cows are both a blessing (they fertilise the soil and keep the competing vegetation low) and a curse (they will eat the Ophioglossums)

Ophioglossum vulgatum 2022

I revisited the Ophioglossum vulgatum colonies at Ports creek, Hilsea Lines at the top of Portsmouth Island
These fields are maintained to allow the orchids to thrive so they are only mown once a year in the autumn
The Ophioglossums seem mostly to grow around the base of the hawthorn bushes
I found 6 colonies this year
These plants vary in size from less than an inch to the one below which was about 3 x 8 inches

The allotment May 2022

These are some of the more exotic ferns that I grow in my unheaqted polytunnel on the allotment
The tempreature rarely goes below zero and we probably do not experience air frosts in the polytunnel
All these ferns have survived at least 5 years