Abstracts THE BOTANICAL SOCIETY OF AMERICA See allHide authors and affiliations Science 25 Feb 1916:Vol. 43, Issue 1104, pp. 285-292DOI: 10.1126/science.43.1104.285-a H. H. BartlettFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.