Polypodium Interjectum - (Intermediate Polypody)

Polypodium Interjectum (Intermediate Polypody) Click over to enlarge

This photo was taken on 11th December 2015. Also of interest is the bottom right pinnae shows (biffid)

Monday 4th February 2019 - Vicarage Lane, Burton In Kendal - Western Polypody or Polypodium Interjectum 'biffid'

I discovered this plant about six months ago and almost immediately noted its striking differences in particular towards the pinnae ends which on the majority (but not all) of the fronds took on this biffid (or forked end appearance). Even more striking was later in the year to find that some of the pinnae actually had developed into a "tri" situation and this was found in at least a further three separate fronds.  I am told that we cannot call this situation a 'triffid' or maybe a 'trifolate' that just will not do and because the plant holds a majority of 'biffid' pinnae, that's what we still need to call it.  Yet if the "tri" situation was repeated in total throughout the plant it would then take on a different title. Not sure what!

This photo shows the full plants presentation and if you click to enlarge you will soon be able

to see many of the 'biffid' and perhaps 'tri' pinnae split ends. Since checking this out its made

me more aware of other plants and wanting to check if they too may have these characteristics and as such resulting in now having to spend "far too much time" on this. Fortunately a saviour of these winter times give you far more time to adopt this practices. 

These interesting photos were taken this morning - Polypodium interjectum 'Biffid'  at "Low Gables"

All the photos show specific unusual pinnae growth, from the 'biffid' to 'tri' and branches further down the pinnae at various points.  The tri-pinnae is seen on at least 3 separate fronds.

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19th/21st February 2019 - Holme Stinted Pastures

Found the following 'Interjectum' which looked interesting on at least three accounts. Firstly it is rare for me to find this species in the fork of a tree. In 90% of occasions when I find polypodium within a tree habitat they turn out to be 'vulgare'.  Also on this particular plant some of the fronds show a 'bifid' situation on the ends of the pinnae.  But the most striking feature seems to be the 'branch off' in the frond (see photos below).

Polypodium Interjectum - Click over to enlarge
Photo: taken 19th Feb 2019 - Holme Stinted Pastures

For me it is irregular to find 'Interjectum' coming from a tree base, I would find that in 90% of cases I will see 'vulgare' from this sort of tree base rather than 'interjectum'

 Polypodium Interjectum - Click over to enlarge
Photo: taken 19th Feb 2019 - Holme Stinted Pastures

Polypodium Interjectum - Click over to enlarge
Photo: taken 21st Feb 2019 - Holme Stinted Pastures

 Polypodium Interjectum - Click over to enlarge
Photo: taken 21st Feb 2019 - Holme Stinted Pastures

Polypodium Interjectum - Click over to enlarge
Photo: taken 21st Feb 2019 - Holme Stinted Pastures

Polypodium Interjectum - Click over to enlarge
Photo: taken 19th Feb 2019 - Holme Stinted Pastures

This is a interesting frond which clearly shows two of its pinnae have taken on a 'biffid' situation were the ends are forked. On the same plant you will notice in the next photo that one of the fronds is showing branching.

Polypodium Interjectum - Click over to enlarge
Photo: taken 21st Feb 2019 - Holme Stinted Pastures

This is the striking feature of this particular plant which clearly shows a branching of the frond, excuse the poor photo being blurred, awaiting another visit to try and rectify.

Polypodium Interjectum - Click over to enlarge
Photo: taken 21st Feb 2019 - Holme Stinted Pastures

This photo is a close up showing the branching

Polypodium Interjectum - Click over to enlarge

Photo: taken 21st Feb 2019 - Holme Stinted Pastures

Polypodium Interjectum - Click over to enlarge
Photo: taken 19th Feb 2019 - Holme Stinted Pastures

Above: This is the striking feature of this particular plant which clearly shows a branching of the frond (photo shows underside)

Polypodium interjectum (Intermediate Polypody) - Click over to enlarge

Found in Dalton Crags on top of large escarpment boulders on 24th February 2019.

Polypodium interjectum (Intermediate Polypody) - Click over to enlarge

Found in Dalton Crags on top of large escarpment boulders on 24th February 2019.

Polypodium interjectum (Intermediate Polypody) - Click over to enlarge

Found in Dalton Crags on top of large escarpment boulders on 24th February 2019.

Polypodium interjectum (Intermediate Polypody) - Click over to enlarge

Found in Dalton Crags on top of large escarpment boulders on 24th February 2019.

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(above) This is No.1 frond upperside

The above Polypodium interjectum was found when I was walking up Vicarage Lane in Burton In Kendal on 18th October 2020.

It seems striking to note the branch off or the pinnae in the outline of a miniature frond. You will see the reverse side of the frond together with plenty of sori in the next photograph.

Strange as it might be, a similar situation was replicated with two further fronds also showing this strange breakdown and you can see the photos below of the others, just so we dont complicate I have numbered the fronds 1,2 and 3.

This again is No.1 frond but showing underside with sori

So one is good but two is always better and here below is yet another one from within the same population.

This is frond No. 2 showing upperside

This is frond No.2 showing the underside with sori

So now we can move on to frond No.3 below

Above is Frond No.3 upperside showing a branched off frond

Above shows Frond No.3 underside showing plenty of sori on the branch off.

This shows the full size of the population in question, you may note one of the strange fronds shows on the bottom line of the fronds just to the right mid centre.

And a further one shows directly above that one but to the top of the photo. Frond 3 was somewhere over in the middle of the left hand side of the population. 

Just another photo above showing the population with the branched frond showing near the bottom to the right of centre.

I thought I should also include this photo which is also from the same population and shows divisions of the pinnae in two separate occasions within the same frond.

Now moving on and leaving that particular population, but if I descend Vicarage Lane about 200 yards, I come to yet another Polypody interjectum population which I found a couple of years ago and that to shows some fabulous natural anomolies, and in particular I found this one (photo below) only a few days ago and again it shows a pinnae trying out frond development.

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