A list of the vascular plants of the District of Columbia and vicinity. Prepared for the use of the Botanical society of Washington
Book digitized by Google from the library of University of Michigan and uploaded to the Internet Archive by user tpb. Mimeographed "The purpose of this catalogue is to place a list of reported species in the hands of all interested ... for verification and assistance in preparing a more pretentious work."--Pref Mode of access: Internet Preface signed: P. I., Ricker, chairman of [systematic] seminar
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