6/30/2023 0 Comments The wych elm book![]() The genus is hermaphroditic, having apetalous perfect flowers which are wind-pollinated. In response, disease-resistant cultivars have been developed, capable of restoring the elm to forestry and landscaping. However, in recent decades, most mature elms of European or North American origin have died from Dutch elm disease, caused by a microfungus dispersed by bark beetles. ![]() Some individual elms reached great size and age. ![]() Moreover, during the 19th and early 20th centuries, many species and cultivars were also planted as ornamental street, garden, and park trees in Europe, North America, and parts of the Southern Hemisphere, notably Australasia. Įlms are components of many kinds of natural forests. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical- montane regions of North America and Eurasia, presently ranging southward in the Middle East to Lebanon and Israel, and across the Equator in the Far East into Indonesia.
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