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Tuesday, August 18, 2020 | History

2 edition of Changes in the lichen flora on birch Betula pendula in northern Epping Forest. found in the catalog.

Changes in the lichen flora on birch Betula pendula in northern Epping Forest.

S. Boreham

Changes in the lichen flora on birch Betula pendula in northern Epping Forest.

by S. Boreham

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Published .
Written in English


ID Numbers
Open LibraryOL21561561M

Silver Birch (Betula pendula) is commonly found in the Highland - sometimes as a result of selective felling for timber), whilst Downy Birch (Betula pubescens) is more likely to be found in colder and wetter places (with Rowan and Willow). Upland birch wood may be used for grazing and shelter of livestock, and some felling for firewood. Betula pendula (aka Betula alba) - European White Birch. Fast growing deciduous tree eventually reaching a height of about feet. Branches tend to weep toward the outside of the tree. Bark is white and papery. Very lacy, delicate attractive tree. Exceptional tree for use in a lawn. Enjoys full sun to partial shade and regular water.

Medical plant Birch is a tree that belongs to the Betulaceae family and is closely related to the oak/beech family. Birch is mostly found in temperate climates and is widespread in the Northern hemisphere, in North America, Europe, and Asia. Birch is a leafy tree, known from ancient times as a medicinal plant used in treating many diseases, also known as the “tree of life”. Silviculture of birch (Betula pendula Roth and Betula pubescens Ehrh.) in northern Europe J. HYNYNEN 1*, P. NIEMISTÖ 2, A. VIHERÄ-AARNIO 1, A. BRUNNER 3, S. HEIN 4 and P. VELLING 1 1 Finnish Forest Research Institute, Vantaa, Finland 2 Finnish Forest Research Institute, Parkano, Finland.

The aim of the study was to investigate the effect of soil recovery after a landslide on the nutritional status of a young generation of Silver fir (Abies alba Mill.) and Silver birch (Betula pendula Roth.) study was carried out on the site of a landslide that took place in in the Gorlice Forest District (Southern Poland). Silver birch is a popular garden tree and often hybridises with our other native birch, the downy birch, Betula pubescens, which is more common in Scotland. Tolerant of a range of temperatures, it grows as far south as Spain and as far north as Lapland.


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Changes in the lichen flora on birch Betula pendula in northern Epping Forest by S. Boreham Download PDF EPUB FB2

Changes in the lichen flora on birch Betula pendula in northern Epping Forest. The lichen flora of Epping Forest has long been affected by air pollution from London. However, over the last 20 years Epping Forest has experienced a reduction in airborne sulphur dioxide, so that by mean winter levels were between 30 and 40 µgm The epiphytic flora at the base of mature silver birch trees in northern Epping Forest.

Boreham () recorded the decline of L. conizaeoides on a sample of Betula pendula trees in Epping Forest (N.E. of London) from to Although A. archnoidea became locally abundant on neighbouring Fagus sylvatica trees in autumnit achieved no more than % cover on Betula in the following yearCited by: Lichens as air pollution indicators.

Boreham, S. 'Changes in the lichen flora on birch Betula pendula in northern Epping Forest' London Natural Boreham, S. 'A study of corticolous lichens on London Plane Platanus x hybrida trees in West Ham Park, London.' London Natural   INTRODUCTION.

Betula pendula Roth and B. pubescens Ehrh. are the most common birch species in the flora of Europe and play an important role in various ecosystems (Ashburner & McAllister, ; de Jong, ).These species were described in the 18 th century in Germany (Roth, ; Ehrhardt, ).They are highly polymorphic, include a high number of intraspecific taxa and Cited by: 1.

In Europe, two commercially important treelike birch species occur naturally: silver birch (Betula pendula Roth) and downy birch (Betula pubescens Eh We use cookies to enhance your experience on our continuing to use our website, you are agreeing to our use of cookies.

Silver birch (Betula pendula Roth) and downy birch (Betula pubescens Ehrh.) are short-lived, relatively small broadleaved trees that occur throughout most of Europe, particularly in northern regions.

Silver birch (Betula pendula) is a fast-growing, medium-sized deciduous tree, characterized by white bark and pendulous tree is quite similar to the downy birch (Betula pubescens) but does not have hairy leaves and birch is located across Europe, from the Mediterranean to central Siberia.

Its natural range is further south than that of downy birch and the species is. Weeping Birch Tree Disease & Pests. Weeping birch (Betula pendula)--also called silver birch--is a member of the European white birch family, with slender, pendulous branches--hence the name--that. Betula pendula, commonly called silver birch or European white birch, is a graceful medium-sized tree with slender pendulous branches and attractive bark.

Golden brown on twigs and young branches, the bark matures to silvery white with black clefts. Smooth in young trees, the bark gets rugged at the base in older trees. Enjoying an elegant, pyramidal to oval, rounded habit, it bears ovate.

1. Introduction. Lichens are one of the most commonly used biomonitors for air quality (e.g. Gilbert,Jovan and McCune,Loppi and Corsini,Vouko et al., ) but, as the composition of atmospheric pollutants changes, changes in lichen community composition need to be s were first used as a surrogate for monitoring concentrations of atmospheric.

The Lichen flora of Finland presents all the macrolichens and some of the most common crustose lichens known from Finland. The total number of species, subspecies or varieties treated is Betula pendula - Silver Birch.

Phylum: Magnoliophyta - Class: Magnoliopsida - Order: Sapindales - Family: Betulaceae. This graceful deciduous broadleaf tree lives for up to 80 or exceptionally years, growing to a height of 30 metres (although usually it attains little more than half that size).

American Forests National Tree Register, Species: European white Birch (Betula pendula), State: ORDescription Oregon ID # Photo credit: Jerry Black Location Clackamas County, OR.

Silver Birch Betula pendula. Name also: European White Birch, Warty Birch; Family: Birch Family – Betulaceae; Growing form and height: Usually tree with single trunk.

8–25 m (25–80 ft.). Flower: Small, greenish to brownish, lacking perianth. Inflorescences dense, pendent catkins formed by. Impacts of ozone and CO 2 enrichment, alone and in combination, on leaf anatomical and ultrastructural characteristics, nutrient status and cell wall chemistry in two European silver birch (Betula pendula Roth) clones were studied.

The young soil‐growing trees were exposed in open‐top chambers over three growing seasons to 2 × ambient CO 2 and/or ozone concentrations in central Finland. Betula alleghaniensis, Betula dahurica and Betula nigra are excellent choices for damp (but not waterlogged) soils.

Most birches are exceptionally cold-hardy. Betula pendula and Betula papyrifera can be grown in Zone 2. Some are heat tolerant such as Betula nigra. Birches require little care. Includes Betula nigra 'BNMTF' Dura Heat™, Betula nigra 'Cully' Heritage™, Betula papyrifera - Paper Birch, Betula pendula 'Dalecarlica' - Cut-leaf Birch, Betula pendula 'Fastigiata', Betula pendula - Silver Birch, Betula platyphylla 'Fargo' Dakota Pinnacle™, Betula platyphylla var.

japonica 'Whitespire', Betula 'Penci-2' - Royal Frost ™, Betula utilis var. jacquemontii 'Jermyns. Species ca. 35 (18 species in the flora): throughout n temperate, boreal, and arctic zones of the Northern Hemisphere; North America, Asia.

Birches, like alders, are common trees and shrubs of northern temperate and boreal zones of the Northern Hemisphere. A long cultivated birch species native to high elevations in regions of Europe.

The pyramidal plants display evolving bark that changes from brown to white and black in youth, adulthood and old age respectively. Deep green leaves are glossy and typically transform to respectable butter yellow shades in. EECOS, May Epping Forest District Silver Birch (Betula pendula) and Hornbeam.

There is a small, meandering stream within the northern edge of the wood. The value of the site is increased by the fact that it adjoins the ancient Scatterbushes Wood. (Red Data Book “K” category) bee Heriades truncorum was captured at this site.

Betula pendula - Silver Birch Description. Betula pendula are rapidly growing, undemanding trees, which after about 50 years have reached their final height of about 25 meters (82 ft).

Silver birch is found in sparse deciduous, coniferous and mixed forests and is native to almost all of Europe. An exception is Northern Scandinavia. It is a Fruticose or ‘shrubby’ lichen often found growing on Birch (Betula pendula), conifers and fruit trees in the Northern Hemisphere.

Assorted Lichens Usnea (left), Bryoria (right) A key identifying feature of Usnea is that it feels stretchy – the outer fungal layer breaks away easily while the inner core stays in tact – this is the.zation of conifers in the Liphook Forest fumigation munity on top of stone walls in Oland, Sweden.

An-nales Botanici Fennici ["Diversity of the calcicolous lichen flora and grazing damage to lichens BOREHAM, S. Changes in the lichen flora on birch Betula pendula in northern Epping Forest. London Naturalist