These trees differ from the birches ( Betula, the other genus in the family ) in that the female catkins are woody and do not disintegrate at maturity, opening to release the seeds in a similar manner to many conifer cones.

These effects have been used by Sepp Holzer for one to allow fruit trees to survive at otherwise inhospitable temperatures and altitudes.

These 26 major types can be reclassified into 6 broader categories: temperate needleleaf ; temperate broadleaf and mixed ; tropical moist ; tropical dry ; sparse trees and parkland ; and forest plantations.

These groups appear as the most primitive eukaryotes on phylogenetic trees constructed using rRNA information, which once suggested that they appeared before the origin of mitochondria.

These palm trees provide shade for smaller trees like peach trees, which form the middle layer.

These data were originally published in Howlett and Majerus ( 1987 ), and an updated version published in Majerus ( 1998 ), who concluded that the moths rest in the upper part of the trees.

These leaves need not be explicit in computer memory — a null child pointer can encode the fact that this child is a leaf — but it simplifies some algorithms for operating on red – black trees if the leaves really are explicit nodes.

These constraints enforce a critical property of red – black trees: that the path from the root to the furthest leaf is no more than twice as long as the path from the root to the nearest leaf.

These travels explain as well how the vinviðir ( wine wood ) the Norse were cutting down in the sagas is actually referring to the vines of Vitis riparia a species of wild grape that grows on trees.

These patterns can be compared and matched ring for ring with trees growing in the same geographical zone and under similar climatic conditions.

These " candles " offer foresters a means to evaluate fertility of the soil and vigour of the trees.

These complex computer programs are encoded in simpler linear chromosomes of fixed length, which are afterwards expressed as expression trees.

These were the first works after Plumier's Genera that used the name Magnolia, this time for some species of flowering trees from temperate North America.

These early techniques have been replaced by newer ones based on mitochondrial DNA sequences and molecular phylogenetics approaches that make use of computational procedures for sequence alignment, construction of phylogenetic trees and calibration of molecular clocks to infer evolutionary relationships.

These fields can be OBVs themselves, forming lists, trees or arbitrary graphs.

These membranes, when outstretched, allow them to glide between trees.

These trees are all over 50 m tall.

These trees provide preferred spring habitat for Black Bear in the San Bernardino Mountains.

These types of disturbances allow Douglas-fir to regenerate in openings, and low-intensity fires often leave Douglas-fir trees standing on drier sites, while less drought-and fire-tolerant species are unable to get established.

These sands cannot support crops, and if the trees are removed erosion is rapid and severe.

These studies further suggest that pollinators may maintain a fidelity to either male or hermaphroditic flowers ( trees ), thus limiting pollination and fruit set under natural conditions where crossing between male and female flowers is required.

These cases are attached to rocks, trees or fences while resting or during their pupa stage, but are otherwise mobile.

" These states of being were " altogether explicable and indefinite " ( like brother and sister ), and it was the fruits of the union of these two entities that created "... the rocks and sands of the earth ; then trees, shrubbery, herbs and grass ; then animals ".

These principles, however, will not be served by violence in any form.

These art pieces often served a liturgical function, whether as chalices or even as church buildings themselves.

Bibas argues, " These procedures may be constitutional and efficient, but they undermine key values served by admissions of guilt in open court.

These political divisions subdivide the population of Ajaccio into units that can be more democratically served but they do not give a true picture of the size of Ajaccio.

These actions served the purposes of both drawing audience and causing that audience to ask questions, giving a prophet the opportunity to explain the meaning of the behavior.

These linking slabs may in some cases have served as steps to higher floors.

These rules served in a very real sense as a constitution for the Ming Dynasty for the next 250 years.

These regiments, which rarely took the field as complete organizations, served throughout the American Indian Wars through the close of the frontier in the 1890s.

These paintings were part of a diptych completed in 1936 depicting the history of medicine in the African American community and Beauford Delaney served as assistant.

These racial classifications for Africans and further divisions for ' mixed-race ' offspring traditionally served colonial interests.

These songs of longing and romance once served as a courtship ritual and still do today to some extent on this island where the drum is an integral part of the culture.

These missions tended to found monastic institutions and collegiate churches that served large areas.

These initiatives did not produce economic recovery during his term, but served as the groundwork for various policies laid out in Franklin D. Roosevelt's New Deal.

These inns provided accommodation for people and their vehicles or animals and served as a resting place for people, whether travelling on foot or by other means.

These standard food offerings served at the cafeteria ( shokudō, often called to distinguish from corporate cafeterias ), or yatai or izakaya are not considered Japanese cuisine at a " proper restaurant ".

These early engines were not manufactured by Boulton and Watt, but were made by others according to drawings made by Watt, who served in the role of consulting engineer.

" These served as the foundation of supply-side economics, known as Reaganomics.

These mews now provide very attractive private accommodation which can fetch similar prices to flats in the grand houses they once served.

These regional headquarters served as switching centers for provincial-level subsystems.

These ships were then released, and served as the core of the Athenians ' fleet throughout the rest of the war.

These concerts and dances were'all-ages ' events — often with adult supervision — and alcohol was not served.

These examples of polysemy served the double purpose of showing that indigenous languages sometimes made more fine grained semantic distinctions than European languages and that direct translation between two languages, even of seemingly basic concepts like snow or water, is not always possible.

These units served as frontier guards and police.

These are served on draught in the brewery's pubs and receive more frontage than non-brewery brands.

These influences, along with the liberal environment of Greenwich Village, served as catalysts for the Stonewall riots.