Whitebeam
The whitebeams are members of the family Rosaceae, comprising subgenus ''Aria'' (or, according to some authorities, its own genus) of genus ''Sorbus'', and hybrids involving species of this subgenus and members of subgenera ''Sorbus'', ''Torminaria'' and ''Chamaemespilus''. They are deciduous trees with simple or lobed leaves, arranged alternately. They are related to the rowans (''Sorbus'' subgenus ''Sorbus''), and many of the endemic restricted-range apomictic microspecies of whitebeam in Europe are thought to derive from hybrids between ''S. aria'' and the European rowan ''S. aucuparia''; some are also thought to be hybrids with the wild service tree ''S. torminalis'', notably the service tree of Fontainebleau ''Sorbus latifolia'' in French woodlands. The best known species is the common whitebeam '' Sorbus aria'', a columnar tree which grows to tall by broad, with clusters of white flowers in spring followed by speckled red berries in autumn (fall). Appearance The surface ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Sorbus Admonitor
''Karpatiosorbus admonitor'', previously classified as ''Sorbus admonitor'' and also called the no parking whitebeam, is a species of whitebeam tree found in Devon, United Kingdom. It is known only from the Watersmeet Valley at Lynton, with two stray plants growing on the coast above Sillery Sands, Countisbury. Discovery Its unusual name derives from the location of the first tree to be found (not the type specimen) – by a lay-by near Watersmeet in North Devon, with a "no parking" sign nailed to the tree. Although first recognised as a distinct variety in the 1930s (by the botanist E. F. Warburg) because of its strongly lobed leaves, it was only accorded species status in 2009, after various biochemical analyses. It is believed at least 110 individuals of the species exist and represent a stable population. The leaves of the no parking whitebeam have more accentuated lobes than the Devon whitebeam, of which it was thought before to be a variety. The research project tha ...
[...More Info...]