Browse Items (4344 total)
- Collection: Ken Armson fonds
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Cronartium comptoneae (sweetfern rust).
Cronartium comptoneae (sweetfern rust) on jack pine seedlings.
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Cronartium comptoneae (sweetfern rust).
Cronartium comptoneae (sweetfern rust) on jack pine seedlings.
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Cronartium comptoneae rust showing aeciospores.
Cronartium comptoneae rust showing aeciospores on jack pine.
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Cronartium comptoneae rust showing aeciospores.
Cronartium comptoneae rust showing aeciospores on jack pine.
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Cronartium comptoniae (sweetfern blister rust) on 2 year jack pine.
Cronartium comptoniae (sweetfern blister rust) on 2 year jack pine. N.B. aeciospores.
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Cronartium comptoniae (sweetfern blister rust) on 2 year jack pine.
Cronartium comptoniae (sweetfern blister rust) on 2 year jack pine. N.B. aeciospores.
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Cross-Section of Black Locust Nodule (x360) to Show Rhizobium Cells the Bacteria Which Due the Nitrogen-Fixation
Cross-section of black locust nodule (x360) to show rhizobium cells the bacteria which due the nitrogen-fixation. Alfisol, HF, BSY.
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Cross-Section of Black Locust Nodule (x4) to Show General Structure and the Red Colour Due to Presence of 'Leghemoglobin' Which Shows There Is Active Nitrogen-Fixation
Cross-section of black locust nodule (x4) to show general structure and the red colour due to presence of 'leghemoglobin' which shows there is active nitrogen-fixation. Alfisol, HF, BSY.
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Cross-Section of Dense Seedbed (300SDLGS/Sq/Ft) To Show Effects of Botrytis Mold
Cross-section of dense seedbed (300sdlgs/sq/ft) to show effects of Botrytis mold. Black spruce, 2+0, Botrytis damage.
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Cross-section of nodule on Alnus glandulosa showing infected cortical cells
Cross-section of nodule on Alnus glandulosa showing infected cortical cells (actinomycetes?) stained red; central red tissue are the vascular elements.
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