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File:Pavetta gardeniifolia subsp gardeniifolia, bakteriese knoppies, Krokodilrivierreservaat, b.jpg

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Captions

Bacterial nodules of Pavetta gardeniifolia

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Description
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.
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Author JMK

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current17:43, 12 April 2023Thumbnail for version as of 17:43, 12 April 20232,577 × 1,951 (1.03 MB)JMK (talk | contribs)Uploaded own work with UploadWizard

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