File:Pavetta gardeniifolia subsp gardeniifolia, bakteriese knoppies, Krokodilrivierreservaat, e.jpg
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[edit]DescriptionPavetta gardeniifolia subsp gardeniifolia, bakteriese knoppies, Krokodilrivierreservaat, e.jpg |
Afrikaans: Bakteriese knoppies in 'n Kersbruidsbos-blaar (Pavetta gardeniifolia subsp. gardeniifolia) te Krokodilrivierreservaat, Gauteng. Die blaar word van onder gesien terwyl dit teen die son gehou word, en die knoppies val op as donker vlekke. Die knoppies bevat 'n spesie-spesifieke bakterie (Burkholderia sp.).
Die plant was binne 'n boomgroepie met Karee (Searsia lancea) wat die baldakyn vorm, in andersins oop grasveld. Hierdie subspesie het haarlose blare en kan daaraan uitgeken word. Hierdie Pavetta-spesie besit egter nie domatia soos sekere naverwante nie, nóg enige sekreetholtes wat vlugtige olies vrystel. English: Bacterial nodules in a leaf of a Christmas bride's bush (Pavetta gardeniifolia subsp. gardeniifolia) at Crocodile River Reserve, Gauteng. The leaf is seen from below while held up against the sun, and the nodules show up as scattered dark flecks. The nodules contain a species specific bacterium (Burkholderia sp.). The shrub was growing in undergrowth of a bush clump, with Karee (Searsia lancea) forming the canopy, in otherwise open grassland. This subspecies has glabrous leaves, and can be identified thereby. This Pavetta species does not have domatia like some near relatives, nor any pellucid gland dots that secrete volatile oils. Observed during an outing of the Tree Society of South Africa. |
Date | |
Source | Own work |
Author | JMK |
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Camera manufacturer | Canon |
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Camera model | Canon EOS 400D DIGITAL |
Exposure time | 1/1,000 sec (0.001) |
F-number | f/5.6 |
ISO speed rating | 100 |
Date and time of data generation | 21:52, 9 August 2006 |
Lens focal length | 49 mm |
Orientation | Normal |
File change date and time | 21:52, 9 August 2006 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 21:52, 9 August 2006 |
Meaning of each component |
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APEX shutter speed | 9.9657897949219 |
APEX aperture | 4.9708557128906 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 4,433.2953249715 |
Focal plane Y resolution | 4,453.6082474227 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |