Jepson Flora Project: Jepson Interchange for California Floristics    
click for enlargement
Wolffia borealis (Engelm. ex Hegelm.) Landolt & Wildi
ARACEAE (genus previously included in Lemnaceae)
·

Information from the Index of California Plant Names (ICPN)
Misapplications Cited in The Jepson Manual [Appendix III] Wolffia punctata Griseb. [according to Flora North America, International Plant Names Index-Index Kewensis, Wolffia punctata was published in 1864 and is a superfluous name for Wolffia borealis published in 1849.]
Current Jepson Flora Project Synonyms Wolffia punctata Griseb., nom. superfl.
Initial Editorial Analysis Nov 1 2001
Notes on Authorship of Name all = Authors of Plant Names except Wildi not in Authors of Plant Names, although in accordance with principles in Authors of Plant Names (see Comments)
Notes on Publication of Name Ber. Geobot. Inst. ETH Stiftung Rübel 44: 137. 1977
Source of Report for California The Jepson Manual [Ed. 1]
Initial Editorial Comments author citation uncertain, Wolffia borealis (Engelm.) Landolt & Wildi in International Plant Names Index-Gray Card Index
Editorial Recommendation author citation to be checked [resolved]
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 11 Oct 2004 e-mail from Jeff Greenhouse see Comment 1
Editorial Comments 1 Correspondence 1 indicates that Wolffia borealis was published by Elias Landolt (Landolt in Authors of Plant Names) and Otto Wildi (Wildi not in Authors of Plant Names, although in accordance with principles in Authors of Plant Names) in Berichte des Geobotanischen Institutes der Eidg. Techn. Hochschule Stiftung Rübel 44:137 (1977), based Wolffia brasiliensis Wedd. var. borealis Engelm. ex Hegelm. (Die Lemnaceen 127. 1868), and that Dr. Friedrich Hegelmaier (Hegelm. in Authors of Plant Names) ascribed the combination Wolffia brasiliensis var. borealis to "Engelm. Ms." but provided his own diagnosis, in German. [Therefore, author citation expanded, corrected to Wolffia borealis (Engelm. ex Hegelm.) Landolt & Wildi, from Wolffia borealis (Hegelm.) Landolt & O. Wildi previously in this Index, 12 Oct 2004.]
Correspondence 2 Treatment submitted for The Jepson Manual [Ed. 2] by Wayne P. Armstrong, including reference to "Wayne's Word", http see Comment 2
Editorial Comments 2 Correspondence 2 indicates that Wolffia borealis (Engelm. ex Hegelm.) Landolt & Wildi is "possibly introduced by migratory waterfowl into southern California (San Diego County)."
Editorial Summary and Current Status
Current Status JFP-1, accepted name for taxon native to CA
Current Status Authority The Jepson Manual [Ed. 1]
List of names for this Current Status category
List of ICPN names in Wolffia
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora in Wolffia

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
Manual imageJepson eFlora
link image
Manual imageArchived Indexes from The Jepson Manual (1993; TJM1)
Site Search Search this site in Google for other references
calphotos logo 2Cal Photos images
Common names
link image IPNI
link image Tropicos Taxonomic information from the Missouri Botanical Garden
Calflora: Taxon report · Distribution · Observations
link image KBD Kew Bibliographic Database
GBIF GBIF
Google Scholar Google Scholar
Google Books
link image JSTOR Plant Science

iNaturalist.org
Please use this Google Form for Feedback