Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleLength of Day in Relation to the Natural and Artificial Distribution of Plants.AuthorsAllard, H. A.PublicationEcology, 1932, Vol 13, Issue 3, p221ISSN0012-9658Publication typeArticleDOI10.2307/1931550