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634.9
A 90
A 90
Atlas of United States trees
[Текст] : vol. 1 Conifers and important hardwoods. 1146 Miscellaneous Publ. Atlas of United States trees Vol. I. Conifers and important hardwoods / E.L. Little ; USDA, Forest Service. - Washington : US Govermet Printing Office, 1971. - 8 с. + base maps 1-2 Conifers maps 1-94, Hardwoods maps 95-200. - 3.00 р.
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634.9
C 89
C 89
Geographic distribution of the pines of the world
[Текст] : монография / W.B. Critchfield, E.L. Little ; U.S.D.A., Forest service. - Washington : U.S.Department of Agriculture, 1971. - 96 с. + maps. - (USDA Forest Service Miscellaneous Publication / USDA Forest Service ; 991). - Библиогр: p.21-29%Maps: p. 30-95%Index: p. 96-97. - 1-00 р.
Аннотация: The genus Pinus is one of the most widely distributed genera of trees in the Northern Hemisphere. The pines extend from the polar region to the tropics. The pines dominate the natural vegetation in many regions. The genus includes some of the most valuable timber trees in the world, and is readily distinguished frome other plants. For all of these reasons a great deal of information has accumulated about the natural distribution of the pines. This publication summarizes this information in the form of maps, and indicates the sources of information wherever possible
Доп.точки доступа:
Little, E.L.
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Аннотация: The genus Pinus is one of the most widely distributed genera of trees in the Northern Hemisphere. The pines extend from the polar region to the tropics. The pines dominate the natural vegetation in many regions. The genus includes some of the most valuable timber trees in the world, and is readily distinguished frome other plants. For all of these reasons a great deal of information has accumulated about the natural distribution of the pines. This publication summarizes this information in the form of maps, and indicates the sources of information wherever possible
Доп.точки доступа:
Little, E.L.
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634.9
L 81
L 81
Subdivisions of the genus Pinus (pines)
[Текст] / E.L. Little, W.B. Critchfield. - Washington : U.S.Department of Agriculture, 1969. - 51 с. : карты. - (Miscellaneous Publication ; 1144). - eng. - Библиогр.: с. 51. - 14.50 р.
Аннотация: 22 distribution maps of subdivisions of the genus PINUS L. are presented here .Important synonyms and lists of the species are included, and the slight changes in the classification of the subdivisions are explained. The maps of subdivisions combined from those of individual species show clearly and graphically the maximum natural range of all component species. These compiled maps of groups of related species may be useful in further researches, particularly in classification, geograpgical distribution, tree breeding and introduction, and evolution
Доп.точки доступа:
Critchfield, W.B.
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Аннотация: 22 distribution maps of subdivisions of the genus PINUS L. are presented here .Important synonyms and lists of the species are included, and the slight changes in the classification of the subdivisions are explained. The maps of subdivisions combined from those of individual species show clearly and graphically the maximum natural range of all component species. These compiled maps of groups of related species may be useful in further researches, particularly in classification, geograpgical distribution, tree breeding and introduction, and evolution
Доп.точки доступа:
Critchfield, W.B.
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634.9
L 81
L 81
Rare and local conifers in the United States
[Текст] / E.L. Little ; USDA-Forest Service. - Washington : USDA-Forest Service, 1975. - 25 с. : ill. - (Conservation Research Report ; 19). - eng. - Библиогр.: с. 25. - 0.40 р.
Аннотация: Thirty-five of the 96 species of conifers native in continental United States, more than one-third, are trees of rare or local distribution. The range of each of the 35 is shown on an individual map. A table indicates the extent of preservation and distribution in public forests,parks, and other preserves, and which species are endagered. The description for each includes range, location of occurrence, rarity, forest type, and information of special interest
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Аннотация: Thirty-five of the 96 species of conifers native in continental United States, more than one-third, are trees of rare or local distribution. The range of each of the 35 is shown on an individual map. A table indicates the extent of preservation and distribution in public forests,parks, and other preserves, and which species are endagered. The description for each includes range, location of occurrence, rarity, forest type, and information of special interest
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