In addition, five species were recorded in 2017 only: paper birch (Betula papyrifera), beech (Fagus grandifolia
), hornbeam (Ostria viginiana), northern white cedar (Thuja ocddentalis), and balsam poplar (Populus balsamifera).
The American beech (Fagus grandifolia
) is an exceptional, magnificent and majestic tree.
Typically preferring mature hardwood forests, Early Hairstreak caterpillars feed on American Beech (Fagus grandifolia
L.), American Hazelnut (Corylus spp.) and various Oak species (.Quercus spp.) (Klots and dos Passos 1981; Nielsen 1973).
American beech (Fagus grandifolia
Ehrhart) in North America are in a highly degraded state in much of the northeastern United States and eastern Canada due to beech bark disease, which is caused by an invasive scale, Cryptococcus fagisuga Lindinger (Hemiptera: Eriococcidae), and 2 fungal plant pathogens, i.e., Neonectria faginata [Lohman et al.] Castl.
The callus formation prior to bud origin was also verified in Fagus grandifolia
alba), river birch (Betula nigra), American beech (Fagus grandifolia
), and sweet gum (Liquidambar styraciflua).
rubrum, and Fagus grandifolia
; sites were greater than 300 m apart) bordering operational cornfields (operated by the Macdonald Campus Farm, McGill University).
Trapping was conducted in two habitats: northern hardwoods with a dominant overstory of sugar maple (Acer saccbarum) and American beech (Fagus grandifolia
), and a red pine (Pinus resinosa) plantation.
American beech, or Fagus grandifolia
, is the only species of beech native to the United States.
-- In a mature southern mixed hardwood stand in Hardin County, Texas, American beech (Fagus grandifolia
) declined in basal area by 38% between 1985 and 2001, and 59% of the largest trees (>45 cm dbh) died (4.10%/yr).
The biggest national champion tree in Maryland is a 429-point American beech (Fagus grandifolia
) that grows on a farm in Anne Arundel County.
Beech bark disease is an exotic disease complex involving the exotic beech scale (Cryptococcus fagi Baer) and at least two species of Neonectria fungi, which affects the American beech tree (Fagus grandifolia