File:Zabelia triflora - Flickr - peganum.jpg
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Summary
[edit]DescriptionZabelia triflora - Flickr - peganum.jpg |
Abelia is another genus that's recently been found to be polyphyletic and has hence been split up. 'Polyfila what?' I hear you shout. Polyphyletic. It means it's a genus that includes things that look similar but which are not in fact closely related. Ok, let me explain. One of the rules of modern systematics is that any taxon (genus, family, order, class) must include all those species that are most closely related, even if they look very different and it mustn't include any less closely related species, no matter how similar they may look. So Abelia has always been known to consist of three or four distinct groups. Putting them all in the one genus - Abelia, would mean that they are each other's closest relatives and that nothing else is closer. In fact this is not the case. Some Abelia are more closely related to Dipelta and Kolkwitzia than they are to other Abelia. In this situation we have two options. We can put them all (Abelia, Kolkwitzia and Dipelta) in the one big genus, or we can split Abelia into a number of smaller genera. It's a judgement call, but in this case the second option was taken. Hence we have some new genera to learn - Abelia - the well known x grandiflora, schumannii etc. Diabelia for the less well known but very lovely spathulata, serrata etc. Vaselea for the peculiar and isolated Mexican floribunda. Zabelia for triflora, mosanensis, umbellata etc. |
Date | |
Source | Zabelia triflora |
Author | peganum from Small Dole, England |
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This image was originally posted to Flickr by peganum at https://flickr.com/photos/26698606@N03/5734017410. It was reviewed on 18 May 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
18 May 2016
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current | 19:24, 18 May 2016 | 4,000 × 3,000 (4.48 MB) | Josve05a (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Abelia is another genus that's recently been found to be polyphyletic and has hence been split up. 'Polyfila what?' I hear you shout. Polyphyletic. It means it's a genus that includes things that look... |
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Camera manufacturer | Panasonic |
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Camera model | DMC-TZ10 |
Exposure time | 1/250 sec (0.004) |
F-number | f/4 |
ISO speed rating | 80 |
Date and time of data generation | 11:35, 17 May 2011 |
Lens focal length | 10.3 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Ver.1.2 |
File change date and time | 11:35, 17 May 2011 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 11:35, 17 May 2011 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3.44 APEX (f/3.29) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 63 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |