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Thursday, October 8, 2020 | History

2 edition of Variation in the genus Betula L. in East Anglia. found in the catalog.

Variation in the genus Betula L. in East Anglia.

John Arthur Gill

Variation in the genus Betula L. in East Anglia.

by John Arthur Gill

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Published by University of East Anglia in Norwich .
Written in English


Edition Notes

Thesis (Ph.D.) - University of East Anglia, School of Biological Sciences, 1981.

ID Numbers
Open LibraryOL14512191M

Ethnopharmacological relevance. Trees and shrubs of the genus Betula (Betulaceae) inhabit various ecosystems in temperate and boreal climate zones of the northern hemisphere. The healing properties of Betula bark and bark extracts have been known for a long time in traditional medicine in different parts of the world. Several species of Betula have traditionally been used Cited by: Selection and breeding efforts are underway to breed hypoallergenic birch trees (Schenk et al. ). Although several authors attribute difficulties .

Betula cordifolia (mountain paper birch, also known as mountain white birch or eastern paper birch) is a birch species native to Eastern Canada and the Northeastern United recently it was considered a variety of Betula papyrifera (paper birch), with which it shares many characteristics, and it was classified as B. papyrifera var. cordifolia (Regel) : Betulaceae. While studying material for the new Flora of China (), the authors noticed deficiency and inadequacy in the infrageneric systematics of the genus time restricted by the project deadlines, the co-authors (Li Peiqiong and the author of this article) decided to refrain from delineating any infrageneric groups.

Betula glandulosa, taken at Chepeta Lake, Uintah, Utah. Habitat and distribution Edit This plant occurs in arctic and cool temperate areas from Alaska east to Newfoundland and southern Greenland, and south at high altitudes to northern California, Colorado, and the Black Hills of South Dakota in the west, [2] and locally south to northern Family: Betulaceae. Plants, like silver birch (Betula pendula Roth.), strongly respond to the climatic variation. Therefore, the species is a good indicator of the global climate change, especially warming.


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Variation in the genus Betula L. in East Anglia by John Arthur Gill Download PDF EPUB FB2

A birch is a thin-leaved deciduous hardwood tree of the genus Betula (/ ˈ b ɛ tj ʊ l ə /), in the family Betulaceae, which also includes alders, hazels, and is closely related to the beech-oak family genus Betula contains 30 to 60 known taxa of which 11 are on the IUCN Red List of Threatened Species.

They are a typically rather short-lived pioneer species Clade: Tracheophytes. The stunning Betula, or birch trees, are notoriously difficult to identify despite being one of the major contributors to the beautiful fall foliage famous in eastern North America. With many wrongly named birches appearing in nurseries and arboreta, this new book, the first ever written on the genus, is an important and much-needed work.

The Genus Betula covers all known. Birches or Betula, are among the most attractive and common trees in the landscape and in gardens.

Unfortunately, naming even the common white-barked birches can be difficult and many wrongly named trees can be found in nurseries and arboreta.

The Genus Betula is the first monograph published on this plant group. Accounts are given of all known. Variation was in part site‐dependent, suggesting that the different environments were influencing phenotype.

Twenty trees at one site (Dersingham) were located on a topographic gradient from bog to heath; here there was a strong correlation between the loadings of individual trees on the principal axes of variation and the elevation of those Cited by: Genus: Betula L. – birch Subordinate Taxa.

The Plants Database includes the following 34 species of Betula. Click below on a thumbnail map or name for species profiles.

Native Introduced Native and Introduced. Betula alleghaniensis yellow birch Betula ×alpestris. Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online sinceand is run by Henriette Kress, a herbalist in Helsinki, Finland.

Plant secondary chemistry is determined by both genetic and environmental factors, and large intraspecific variation in secondary chemistry has frequently been reported.

The heritability of specific tree secondary metabolites is, however, mostly unknown. We tested the effect of plant genotype, environment, and ontogeny on the variation in shoot secondary Cited by: Define genus Betula. genus Betula synonyms, genus Betula pronunciation, genus Betula translation, English dictionary definition of genus Betula.

Noun 1. genus Betula - a genus of trees of the family Betulaceae Betula hamamelid dicot genus - genus of mostly woody relatively primitive dicotyledonous. VARIATION AND POLYPLOIDY WITHIN LOWLAND POPULATIONS OF THE BETULA PENDULA/B. PUBESCENS COMPLEX BY J. GILL AND A. DAVY School of Biological Sciences, University of East Anglia, Norwich NR4 ITJ {Accepted 18 February ) SUMMARY Variation and cytotype distribution have been studied in secondary birch woodland whereCited by: Accepted by.

Ashburner, K. & McAllister, H.A. The genus Betula: a taxonomic revision of birches: Royal Botanic Gardens, Kew. Govaerts, R. Statistics. The Plant List includes scientific plant names of species rank for the genus these are accepted species names.

The Plant List includes a further scientific plant names of infraspecific rank for the genus do not intend The Plant List to be complete for names of infraspecific rank. These are primarily included because names of. The stunning Betula, or birch trees, are notoriously difficult to identify despite being one of the major contributors to the beautiful fall foliage famous in eastern North many wrongly named birches appearing in nurseries and arboreta, this new book, the first ever written on the genus, is an important and much-needed work.5/5(4).

The various species of birch trees in the Betula genus include at least 12 that are important landscape trees. Birch trees offer interesting bark color and texture and attractive foliage, but they are relatively short-lived and they may suffer from a susceptibility to diseases and insects, especially the bronze birch : Vanessa Richins Myers.

Subgenus Betulenta - Wintergreen oil birches. Bark on twigs rich in methyl salicylate (oil of wintergreen). Female catkins erect. Diploid (2n = 28).

Betula lenta - Sweet birch or cherry birch. Betula lenta subsp. uber - Cherry Creek birch; Hexaploid (6n = 84). Betula allegheniensis - Yellow birch (B. lutea); Decaploid (10n = ). Betula austrosinensis - South China birch. The Genus Betula is no exception, filled with many photographs, as well as paintings by Josephine Hague and line drawings by Andrew Brown.

The authors, Kenneth Ashburner and Hugh McAllister, worked together on Genus Betula for many years before Kenneth's death inafter which Hugh completed the book.3/5(1). The genus Betula L. (Betulaceae) Vegetative key to the species in Western European cultivation.

Jan De Langhe (10 September - 17 August ). The occurrence of biologically active compounds identified for the first time in the lipophilic extracts of yellow birch (Betula alleghaniensis Britt.) foliage led to the quantification of the seasonal variation of their birch foliage was collected from late June until late September in two different regions of Quebec.

An Betula in uska genus han Betula in nahilalakip ha familia nga i-an: Plantae. The genus Betula, commonly known as Birch is made up of 73 taxa. Birch species are normally small to medium-size trees or shrubs, mostly of temperate climates and boreal zones of the northern hemisphere.

Birch trees prefer to occupy habitats in cool, moist areas, including peatlands (moors, peatbogs), river banks, and lakeshores. Birch can be. Betula ovalifolia in the Germplasm Resources Information Network (GRIN), U.S.

Department of Agriculture Agricultural Research Service. Accessed on Apr Accessed on Apr For more multimedia, look at Betula ovalifolia on Wikimedia Commons. The Genus Betula is the first monograph published on this plant group, the species of which have been notoriously difficult to identify.

Accounts are given of all known birches found in Europe, Asia and North America, both white and brown barked, and a key for their identification. An invaluable tool for arboriculturalists and professional and 5/5(4).The New York Flora Atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy.

In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant.Molecular phylogeny and genome size evolution of the genus Betula (Betulaceae).

Annals of Botany (6): – DOI: /aob/mcw Reference page. Govaerts, R. et al. Betula in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: February