BARBARA JOE HOSHIZAKI
Mildred Mathias Botanical Garden, University of California, Los Angeles
Los Angeles, California 90024
KENNETH A. WILSON
Natural History Museum of Los Angeles County, Los Angeles, California 9000
ABSTRACT.-Fifty species of Dryopteris, belonging to three subgenera and ten sections, are known to be in cultivation of the United States. Descriptions, cultural requirements and keys to the sections and the species are provided as an aid to the identification of these species. An addendum lists recently reported species not included in the main treatment. The species included are:
*Originally published in American Fern Journal, Volume 89, Number 1, January-March 1999.
Used with permission.
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