Pteridophyte DNA C-Values Database 

Release v1.0
Tony Cox, Jodrell Laboratory, RBG, Kew. (a.cox@kew.org)

If you have not read the help page please do so before using this form. If you still have questions please consult the frequently asked questions (FAQ) page before emailing a query to the database administrator. If you encounter errors or strange behaviour please mail the details to the database administrator making sure you include all relevent information about your query and the error you received. Requests for assistance without detailed information will be ignored!

Select the fields that you want to include in the results of your database query and (if necessary) specify their ranges:
 

  Name(optional) Email(required)
 
Genus Default = all
Species Default = all
Family Default = all
Authority Default = all
1C DNA range (pg) From:  To: Default = all
Chromosome number From:  To: Default = all
Ploidy level From:  To: Default = all
Pteridophyte Group Default = all
Voucher available? Yes NoEither Default = either
Spore type Default = all
Estimation method Default = all
Sporangium type  
Sperm flagella number  
 
Sort results by: Default = sort
Notes:
  • To include a field in your query it must be selected (checked) in the first column of the table. 
  • If you do not enter a value in a blank field the default value will be used (shown in right-hand column).
  • All DNA amounts are 1C and expressed in picograms and megabase pairs.
Please select the following field and include the information when reporting problems or bugs
Include database connection information with results

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If you have comments and/or suggestions contact Tony Cox (a.cox@kew.org)
� Copyright (2000), Board of Trustees of the Royal Botanic Gardens, Kew