field elm造句
造句與例句
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- Planted in 1350, this Field Elm " Ulmus minor " died in 2010 after finally succumbing to Dutch elm disease.
- This means that enigmatic British elms such as Plot elm and English elm have been shown to be single clones of field elm.
- Unlike other forms of the Field Elm,'Plotii'is not a prolific generator of suckers, but it is not considered critically endangered.
- Current treatment of the species owes much to Richens, who noted ( 1983 ) that several varieties of field elm are distinguishable on the European mainland.
- More recently, Field Elms " Ulmus minor " highly resistant to DED have been discovered in Spain, and form the basis of a major breeding programme.
- A rare example of a centuries-old field elm that retains its heartwood and crown is the 360-year-old specimen in the village square of Strinylas, Corfu.
- As for British varieties, " the continental populations most closely related [ to eastern English Field Elm ] are in central Europe ", while south-western forms were introduced from France.
- Knapwell was once celebrated for its many ancient Field Elms, which marked the old boundaries, closes and lanes of the larger medieval village and which were locally called " the Dodds ".
- The draining and the deeply intended geological base together with the drought-resistant and thermophilic forest vegetation ( oak, field elm, hornbeam ) are the reason for the spreading of the forest soils.
- "U . laevis " is comparatively weak-wooded, much more so than field elm ( " Ulmus minor " ), and thus an inappropriate choice for exposed locations.
- It's difficult to see field elm in a sentence. 用field elm造句挺難的
- In Europe it has spread widely in Spain, and hybridizes extensively there with the native field elm ( " U . minor " ), contributing to conservation concerns for the latter species.
- He concluded, however, that owing to incomplete field-research at the time of writing, it was " not possible to present an overall breakdown of the European Field Elm into regional varieties ".
- Loudon's'Australis'is not to be confused with " U . campestris "'Australis', a tall southern European field elm or hybrid cultivar with an oval leaf and longer petiole.
- A number of studies have now shown that the distinctive forms Melville elevated to species and Richens lumped together as field elm are single clones, all genetically identical, which have been propagated by vegetative means such as cuttings or root suckers.
- A number of studies have now shown that the distinctive forms that Melville elevated to species and Richens lumped together as field elm are single clones, all genetically identical, that have been propagated by vegetative means such as cuttings or root suckers.
- ""'Ulmus ?hollandica " "'hybrid between Wych elm " Ulmus glabra " and field elm " Ulmus minor " which commonly occurs across Europe wherever the ranges of the parent species overlap.
- This means that enigmatic British elms such as . . . English Elm have turned out to be single clones of field elm . " Most current taxonomies, however, do not list English Elm as a variety of " Ulmus minor ".
- The tallest recorded field elms in Greece were two specimens planted in 1650 beside the newly built church of the Archangels Michael and Gabriel, in Omali Voiou ( O???? B???? ) near Siatista, which, despite being open-grown trees, attained a height of 40 metres by the mid-20th century.
- Variegated English elm is not to be confused with the more common Field Elm cultivar " U . minor "'Argenteo-Variegata', also known as " U . minor "'Variegata', the Silver Elm or Tartan Elm, which has similar markings but narrower leaves.
- Herbarium leaf-specimens appear to show " two " clones ( see "'External links "'below ), one with a long petiole and a'Stricta'- type leaf curled or folded longitudinally, consistently labelled'Webbiana'and identified as a form of Field Elm; and a second, with a short petiole and a larger, more deeply toothed, more acuminate, leaf, also curled or folded longitudinally, sometimes renamed'Webbiana'but " formerly called " U . montana " [ : " glabra"
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