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Halophila ovalis  (R. Br.) Hook. f.
Taxonomic Serial No.: 38959

(Download Help) Halophila ovalis TSN 38959

 Taxonomy and Nomenclature
  Kingdom: Plantae  
  Taxonomic Rank: Species  
  Synonym(s): Halophila johnsonii Eiseman
  Common Name(s): seagrass [English]
  Taxonomic Status:    
  Current Standing: accepted  
  Data Quality Indicators:    
  Record Credibility Rating: verified - standards met  

 Taxonomic Hierarchy
 KingdomPlantae  – plantes, Planta, Vegetal, plants  
    SubkingdomViridiplantae  – green plants  
       InfrakingdomStreptophyta  – land plants  
             DivisionTracheophyta  – vascular plants, tracheophytes  
                SubdivisionSpermatophytina  – spermatophytes, seed plants, phanérogames  
                      SuperorderLilianae  – monocots, monocotyledons, monocotylédones  
                            FamilyHydrocharitaceae  – frog's bit, tape-grass, waternymphs  
                               GenusHalophila Thouars – seagrass  
                                  SpeciesHalophila ovalis (R. Br.) Hook. f. – seagrass  

  Expert: Robert R. Haynes  
  Notes: Professor Emeritus, Department of Biological Sciences, The University of Alabama, Tuscaloosa, Alabama, 35476, USA   
  Reference for: Halophila ovalis    
  Other Source(s):    
  Source: Hydrocharitaceae of North America Update, database (version 2010)  
  Acquired: 2010   
  Notes: Updated by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010)   
  Reference for: Halophila ovalis   
  Source: NODC Taxonomic Code, database (version 8.0)  
  Acquired: 1996   
  Reference for: Halophila ovalis   
  Source: The PLANTS Database, database (version 4.0.4)  
  Acquired: 1996   
  Notes: National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA.   
  Reference for: Halophila ovalis   
  Source: The PLANTS Database, database (version 5.1.1)  
  Acquired: 2000   
  Notes: National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA.   
  Reference for: Halophila ovalis   
  Author(s)/Editor(s): Short, Frederick T., Gregg E. Moore, and Kimberly A. Peyton  
  Publication Date: 2010   
  Article/Chapter Title: Halophila ovalis in the Tropical Atlantic Ocean   
  Journal/Book Name, Vol. No.: Aquatic Botany, vol. 93, no. 3   
  Page(s): 141-146   
  Publication Place:    
  ISBN/ISSN: 0304-3770   
  Notes: doi: 10.1016/j.aquabot.2010.05.001   
  Reference for: Halophila ovalis   

 Geographic Information
  Geographic Division: Caribbean  
    North America  



  Comment: The recognition of H. johnsonii as a species remains controversial. Data in a recent paper by Short, Moore, and Peyton (2010) indicate that H. johnsonii Eisman (TSN 502870) is not clearly distinguishable from Halophila ovalis (R. Br.) Hook. f. (TSN 38959). Other recent papers using molecular techniques have also failed to clearly differentiate the species. Robert Haynes (2013, pers. comm.) who authored the treatment for the group in Flora of North America Vol. 22 (2000), which included the taxon as a distinct species, now concurs that H. johnsonii falls within H. ovalis. but notes that more research is needed to clarify relationships within this species complex, especially in the clade that includes H. ovalis, H. hawaiiana and the populations previously referred to as H. johnsonii  



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