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A mistletoe seed germinates on the branch of a host tree or shrub, and in its early stages of development it is independent of its host. It commonly has two or even four embryos, each producing its hypocotyl, that grows toward the bark of the host under the influence of light and gravity, and potentially each forming a mistletoe plant in a ...
Mistletoe attaches to trees with the help of birds that eat the berries but can't digest the seeds. In fact, that's how the plant got its name. In fact, that's how the plant got its name.
In western forest ecosystems of North America, numerous dwarf mistletoe species are considered to be serious forest-borne disease agents.Severe dwarf mistletoe infection can result in a reduction in tree growth, premature tree mortality, reduced seed and cone development, and reduced wood quality, and increases the susceptibility of the host tree to pathogen and/or insect attack.
The American dwarf mistletoe is a yellow-green coral-shaped structure above the surface of the tree's bark, while most of the parasite is beneath the bark. The seeds mature in late summer and disperse to nearby trees. This species has been found to explosively-disperse its seeds through thermogenesis. [1]
Viscum is a genus of about 70–100 species of mistletoes, native to temperate and tropical regions of Europe, Africa, Asia and Australasia. [1] Traditionally, the genus has been placed in its own family Viscaceae, but recent genetic research by the Angiosperm Phylogeny Group shows this family to be correctly placed within a larger circumscription of the sandalwood family, Santalaceae.
Arceuthobium pusillum is a perennial, obligate parasitic plant in the sandalwood family. [1] Its common names include Dwarf mistletoe or Eastern dwarf mistletoe.It is one of the most widespread dwarf mistletoes within its range which covers the eastern United States and Canada, from Saskatchewan to Nova Scotia and New Jersey. [2]
Larger host trees are capable of supporting a higher mistletoe volume than smaller host trees. [2] The correlation between tree size and mistletoe abundance is that larger trees are able to receive a higher number of mistletoe seeds since they are better perches for birds, resulting in the positive relationship between tree size and mistletoe ...
Muellerina is a member of Santalales, the mistletoe order, placed within the family Loranthaceae.The name Muellerina was first published by Philippe Édouard Léon Van Tieghem in 1895, [4] where one New Zealand species, Muellerina raoullii, and two Australian species (Muellerina celastroides and M. eucalyptifolia - now M. eucalyptoides) are given. [5]
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