Identifying Unknown Species in our Hedgerow

We've not been able to identify these species from our hedgerow, so this post is about collating information that will help us. I'm sure we'll kick ourselves when we find out what they are!

SPECIES NUMBER ONE
We're still no closer to identifying this one!

SPECIES NUMBER TWO
We are fairly sure this is hawthorn as it appears in amongst another hawthorn which has a less jagged margin. This hawthorn doesn't have any seeds or flowers.

SPECIES NUMBER THREE
It's hard to tell from this photo but we think this is blackthorn. After our second visit we looked at the stems in greater detail it is very dark in colour and there are some long thorns and the appearance of a few berries.

We have used the book "Hedgerows, Their History and Wildlife" by Richard & Nina Muir and searched the internet for hours on end! The following diagrams on leaf morphology have helped us learn how to categorize leaves.

From flora.dempstercountry.org

From flora.dempstercountry.org

From infovisual.info

hedgerows.co.uk - The English Hedgerow Trust

hedgelink.org.uk - A Little Rough Guide Around the Hedges

sxbrc.org.uk - Sussex Hedgerow Woody Species Identification Guide

naturenet.net - Hedgerows

legislation.gov.uk - Schedule 3 Woody Species

gov.uk - Hedgerow Survey Handbook

Here is a good selection of videos on tree identification by Jim Waterson from Harper Adams university.