File:The ecological relations of roots (1919) (14793328273).jpg

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Identifier: ecologicalrelati00weav (find matches)
Title: The ecological relations of roots
Year: 1919 (1910s)
Authors: Weaver, John E. (John Ernest), 1884-1966
Subjects: Roots (Botany) Plant ecology
Publisher: Washington, Carnegie institution of Washington
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Fig. 24.—Eriogonum microthecum.
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a ten-year-old Artemisia filifolia. THE SANDHILLS SUBCLIMAX. 73 groups, ranging from 2 to 5 mm. in diameter. The larger branches, afterdiverging somewhat from the main tap, took a downward course similar to thatof the main root. At 6 feet the tap divided up into a group of 3 or 4 rootsof almost the same size, which after diverging took the usual downward courseand at a depth of 10 feet were 2 to 3 nmi. in diameter. At this depth repeatedcaving of the sand made further digging so dangerous that the work wasabandoned. Artemisia filifolia.—In the sandhill mixed association, aside from the twograss dominants, Calamovilfa and Andropogon hallii, the sand-sage is the mostconspicuous plant. This is due both to its shrubby habit and its great abun-dance. It is indicative of a light type of soil with considerable moisture pene-tration. It drops out in the more compact hard lands of the plains. Three plants were examined. They were growing on a stabiHzed area nearthe sand-dune. The largest had

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Author Weaver, John E. (John Ernest), 1884-1966
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Flickr tags
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  • bookid:ecologicalrelati00weav
  • bookyear:1919
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Weaver__John_E___John_Ernest___1884_1966
  • booksubject:Roots__Botany_
  • booksubject:Plant_ecology
  • bookpublisher:Washington__Carnegie_institution_of_Washington
  • bookcontributor:The_Library_of_Congress
  • booksponsor:The_Library_of_Congress
  • bookleafnumber:91
  • bookcollection:library_of_congress
  • bookcollection:biodiversity
  • bookcollection:fedlink
  • BHL Collection
  • BHL Consortium
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29 July 2014


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