Hybrid Elms (Ulmus procera x Ulmus glabra) Naturally Occurring
Richens (1967) recorded a single specimen, a putative hybrid between the above species, from
North Weald Bassett.
Multiple Hybrids
R. H. Richens reported the possibility of Multiple Hybrids occurring, i.e. a cross between a
fertile hybrid and another. One I have found at Courtland Drive, Chigwell may be such a tree.
The leaf resembles the American Rock Elm (Ulmus thomasii); it is possibly a hybrid between
English Elm and the Hybrid Elm at this site. A leaf is illustrated on p. 17
Data for the following five plates of elm leaves.
Representative Elm Leaves
1) Wych Elm (Ulmus glabra)
2) Hybrid Elm (Ulmus x hollandica)
3) East Anglian Elm (Ulmus minor)
4) English Elm (Ulmus procera)
5) Hybrid Elm (putative Ulmus procera x U. minor)
Wych Elm
1. Blackmore (TL 601009)
2. Hatch Grove (TQ 396935)
3. Bell Common, Epping (TL 453014)
4. Cornmill Stream (TQ 381007)
English Elm
1. Roding Valley, Loughton (TQ 436954)
2. Lords Bushes, Buckhurst Hill (TQ 416936)
3. Leyton Flats (TQ 398878)
4. Gilwell Lane, Chingford (TQ 386963)
5. Wanstead Park (TQ 415875)
6. Roebuck Lane, Buckhurst Hill (TQ 414945)
7. Wanstead Park (TQ 415875)
8. East Ham, St. Mary's Nature Reserve (TQ 429824)
East Anglian Elm
1. Bell Common, Epping (TL 453014)
2. Leyton Flats (TQ 398880)
3. Hatch Grove, Western Sewage Farm (TQ 397934)
4. Hatch Grove, Western Sewage Farm (TQ 397934)
5. Forest Place, Buckhurst Hill (TQ 414945)
6. South Woodford (TQ 402896)
7. Wanstead Flats (TQ 402867)
8. Wanstead Park (TQ 413873)
9. Great Bardfield Hall (entrance) (TL6730)
Hybrid Elm
1. Green Hollow, Great Dunmow (TL 625207)
2. Church Lane, Loughton (TQ 432967)
3. Hatch Grove/Western Sewage Farm Site (TQ 397934)
4. Gilwell lane, Chingford (TQ 383962)
5. Courtland Drive, Chigwell (TQ 443934)
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