Amelanchier lamarckii, Bergen NH, Oude Hof: cleistothecia

appendages of the cleistothecia

terminal section

Amelanchier lamarckii, boswachterij Nunspeet © Hans Jonkman

peridium

ascus

ascus, detail

gall

mycelium amphigenous, also in the shoots. Conidia in chains, short-elliptic, with fibrosin bodies. Cleistothecium with one, eight-spored ascus. Appendages equatorial, 1-4 x the diameter; they are brown, stiff, with the tip generally 3-4 times dichotomously branched.

host plants

Rosaceae, monophagous

Amelanchier alnifolia, laevis, lamarckii, ovalis, spicata.

notes

Originally a Nearctic species.

references

Beenken & Senn-Irlet (2016a), Braun & Cook (2012a), Bresinsky (2016a), Heluta & Hirylovich (2016a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kruse (2014a, 2019a).