sabao
User
Junior Member
| Posts: 35 |   |
Karma: 0
|
Elm Taxonomy - 2006/03/07 14:22
Ulmus anglica Druce, 1932, British Isles, English elm.
Ulmus campestris is a synonym of U. minor.
Ulmus carpinifolia is a synonym of U. minor.
Ulmus xelegantissima Horwood, 1933, U. minor x plotii, parts of England.
Ulmus glabra Hudson, England, 1762, wych elm.
Ulmus xhollandica Miller, 1754-1768, U. minor x glabra, Europe, Dutch elm.
Ulmus minor Miller, 1768, field elm, Eurasia, North Africa.
Ulmus plotii Druce, 1911, England, Plot's elm.
Ulmus procera is a synonym of U. minor.
'Jacqueline Hillier' is sold in this country as U. xelegantissima. The garden where it was found is within the range of U. plotii. However, due to taxonomic difficulties, the RHS places 'J. H.' within U. xhollandica.
Regarding pests: Those of you who raise Chinese elm have probably encountered leaf gall mites. I have to spray for them occasionally. A grower in Holland who has what appears to be Ulmus xhollandica photographed infestation with leaf gall mites, so I would watch 'Jacqueline Hillier' for them. Orthenex is good for both leaf gall mites & spider mites.
Popular posts by sabao
Name Meaning
Shimpaku Juniper
Maple ID
|
post new topic