Taphrina deformans, cause of peach leaf curl, produces naked asci on the leaf surface.
Sac Fungi
© Kwantlen.ca/Horticulture
Naked asci of Taphrina deformans on peach leaf surface
Sac Fungi
© Kwantlen.ca/Horticulture
Apothecia of tar spot of maple caused by Rhytisma acerinum
Sac Fungi
© Kwantlen.ca/Horticulture
Apothecium e.g. Monilinia and Peziza (hymenium only)
Sac Fungi
© Kwantlen.ca/Horticulture
Perithecia e.g. Venturia inaequalis cause of apple scab
Sac Fungi
© Kwantlen.ca/Horticulture
Perithecia e.g. Apiosporina morbosa, cause of black knot of Prunus
Sac Fungi
© Kwantlen.ca/Horticulture
Perithecia e.g. Nectria spp. cause of perennial canker
Sac Fungi
© Kwantlen.ca/Horticulture
Perithecium e.g. Sordaria
Sac Fungi
© Kwantlen.ca/Horticulture
Powdery mildew affected leaves with cleistothecia
Sac Fungi
© Kwantlen.ca/Horticulture
More powdery mildew affected leaves: Gerbera, Rhododendron, Lonicera, Betula
Sac Fungi
© Kwantlen.ca/Horticulture
Cleistothecia from leaves with powdery mildews
Sac Fungi
© Kwantlen.ca/Horticulture
Lichens: crustose (grow closely appressed to a surface), foliose (thallus is flat and leafy), or
fruticose (miniature shrub-like, erect or hanging, branched)
Sac Fungi
© Kwantlen.ca/Horticulture
Physcia: note fungal apothecium and green algae cells
Sac Fungi
© Kwantlen.ca/Horticulture
Sac Fungi
© Kwantlen.ca/Horticulture