flowering plant seedheads ?

[sweet rocket]

Does anybody know a good website /book for studying seedheads of flowering plants?
I started a thread yesterday "snazzy seedhead" which triggered some looking but no answers. Surfed extensively but got nowhere. Any help out there?

[Dorts]

I looked at the photo you posted yesterday, but it's not a capsule I recognised.

I imagine, by the lack of response, that others are equally finding it difficult.
But don't dispair, something may come to one of us.

I know there are a few books illustrating wild-flower seed pods and capsules, but I think they are quite old.
Sorry I can't help, but I'll keep giving it some thought.
Dorts.

[Dogghound]

Where these taken in shaded woodland? I have found similar but not been able to tell what they are, something common no doubt as they seem abundant and widespread.

[poschiavanus]

Bluebell perhaps?

[Dorts]

Originally Posted by poschiavanus

Bluebell perhaps?

Funny you should say that,as that was my initial thought, but I cannot find a picture that confirms it, despite a search.
Though I did think it is likely to be a bulbous plant, the stem looks a bit 'twiggy', not sure a Bluebell stem dries like that as they are hollow .
Dorts.

[sweet rocket]

Further info on the seedhead.
It was found in an open sunny meadow.I know the walk quite well. When I was trying to remember the flowers I had noticed on earlier walks , harebell (Scots bluebell")was a definite contender as I thought I would recognise the type of seedhead the others had e.g. devils bit, trefoils, various compositae.
Despite seeing the lovely blue flowers everywhere I couldn't remember noticing the seedheads. Familiarity breeds contempt! (or at least neglect) I had a look at other campanulas but they were so dissimilar I thought I was on the wrong tack. No sign of that outer "string vest" container on any that I managed to find. I wonder what function that has. It is so defined.
Thinking they would share features, I took photos of one of my garden campanula seedheads.(The dimple in the outer case is a constant feature). The stem had dried out to the point of being straw like.
I split one open. At that point a similar matrix network in the outer wall is clear but there was no sign of twin seed holding sections. I've included the original wild seed head for comparison purposes.
Your thoughts are much appreciated

[earthgraham]

Hi Sweet rocket,if the ground where you found it was recently disturbed its likely to be something like Field Penny-cress.

[sweet rocket]

Thanks for your suggestions. I've been giving them some thought.
Field Penny Cress seedheads come out of the stalk on alternate sides. The seed heads on this stalk all come from the stalk in the one direction.

In the original thread I started for this query("snazzy seedhead") there was a suggestion that it might be a bluebell(liliaceae) stalk but I have these in the garden and they are not flattened in this way.

So I'm still puzzled and hoping for any other thoughts.
There isn't a lot out there on seedheads.

[clb100]

I think it is Yellow Rattle (Rhinathus minor).

I've just collected some locally and it looks identical.

The outer lacy bit are the decaying petals, the lace being the remaining veins (as seen when tree leaves decay).

The inner double kidney-shaped bit is the seed case.

I have examples where both the petals and the seed case are present and others where only the seed case remains.

[Johnny81]

Yellow rattle is a good shout - if the OP says it was in a meadow.