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"swim learning" wrote in message
om... (swim learning) wrote in message . com... Please identify the tree whose eight photos, taken in September, are shown he http://myturl.com/0015j If the web-page is not accessible, please go to: http://photos.yahoo.com/shahswim and select the "plant-25" album. The leaves are simply toothed and opposite. The twig has a pair of opposite leaves, then a second pair perpendicular to the first, then a third pair aligned as the first pair and so on. What is such an arrangement named? Opposite-decussate. That's generally true of most plants with opposite leaves. The flat, long fruit, shown in pic-2, looks somewhat like a smaller version of green-ash fruit. Thank you. I am adding the newsgroup sci/bio/botany to the thread. Toad and Pam are suggesting the tree is a Fraxinus Oxycarpa (Raywood Ash). Pictures of Raywood Ash show the leaf-pairs in a single plane More likely, you're looking at the leaflets making up a compound leaf typical of most ash species. Yours has simple leaves. while the tree in my photos have adjacent leaf-pairs perpendicular to each other. Please clarify. The fruits in your photo very clearly seem to be those of an ash [genus Fraxinus], but nearly all ashes have compound leaves divided into leaflets. Your tree, on the other hand, seems to have simple, toothed leaves. I'd thought that the only simple-leaved ash species was _Fraxinus anomala_ from the southwest, but its foliage appears rather different from yours: http://www.suu.edu/faculty/martin/as...leleafash.html However, http://ohioline.osu.edu/b700/b700_63.html says that one commonly cultivated form of _Fraxinus excelsior_ [European Ash] has simple leaves. That's my best guess as to the identity of your mystery tree. cheers |
#3
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"I" wrote in message
... "swim learning" wrote in message om... (swim learning) wrote in message . com... Please identify the tree whose eight photos, taken in September, are shown he http://myturl.com/0015j If the web-page is not accessible, please go to: http://photos.yahoo.com/shahswim [snip] The fruits in your photo very clearly seem to be those of an ash [genus Fraxinus], but nearly all ashes have compound leaves divided into leaflets. Your tree, on the other hand, seems to have simple, toothed leaves. I'd thought that the only simple-leaved ash species was _Fraxinus anomala_ from the southwest, but its foliage appears rather different from yours: http://www.suu.edu/faculty/martin/as...leleafash.html However, http://ohioline.osu.edu/b700/b700_63.html says that one commonly cultivated form of _Fraxinus excelsior_ [European Ash] has simple leaves. That's my best guess as to the identity of your mystery tree. That guess seems to be correct. See http://horticulture.missouri.edu/sta...2/frax_exc.htm for a seeming very close match of your plant in _Fraxinus excelsior "Hessei" cheers |
#4
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mel turner schreef
Your tree, on the other hand, seems to have simple, toothed leaves. I'd thought that the only simple-leaved ash species was _Fraxinus anomala_ from the southwest, but its foliage appears rather different from yours: http://www.suu.edu/faculty/martin/as...leleafash.html However, http://ohioline.osu.edu/b700/b700_63.html says that one commonly cultivated form of _Fraxinus excelsior_ [European Ash] has simple leaves. That's my best guess as to the identity of your mystery tree. ***** I remember that Fraxinus angustifolia 'Monophylla' also has simple leaves (compound leaves with a single leaflet). As can be read from the name this is a fairly old cultivar. Its leaves will be rather more narrow. PvR |
#5
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P van Rijckevorsel wrote:
I remember that Fraxinus angustifolia Has normally smaller leaves, see http://www.systbot.gu.se/staff/evawa...ustif_lvs2.jpg A lot of ashes photos can be found he http://www.systbot.gu.se/staff/evawal/fraximages.html |
#6
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Zeitkind schreef
Has normally smaller leaves * * * 1) ash has leaflets 2) according to my dendrology text the leaflets of F.angustifolia 'Monophylla' are twice the size of F.angustifolia and actually bigger than those of a typical F.excelsior 3) I never suggested that this is the identity of the 'mystery tree' PvR |
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