Plant DNA C-values Database

Submit a new DNA C-value

Please fill in all the fields that you have data for.

Note that some fields are required (indicated by an *) whereas others are optional.

Submissions incomplete for required fields may be rejected.

The fields are split into two categories:

Common data = data that are common to all plant groups
Specific data = data specific to a particular plant group. You only need to fill in the specific data for the group you are submitting values for.

Important! Complete your contact details! Fields marked with * are required fields

The address and notes fields have a limit of 250 characters. As a guide, don't exceed the area allowed in the text boxes.

Common Data to all groups
Group*	Select from drop-down list
Family*
Genus*
Species*
Sub-species
Authority
Voucher available?*	Yes No Not Known
Chromosome number (2n)
Ploidy level (x)
C-value*	in Select from drop-down list
Original reference details*
Estimation method*	Select from drop-down list
Standard species*
Standard species cultivar*
Assumed C-value for standard species*
Latitude
Longitude
Altitude (m.)
Location notes
Other notes
Angiosperm specific data
Angiosperm group	Select from drop-down list
Life cycle	Select from drop-down list
Woody or herbaceous?	Woody Herbaceous Not known
Bryophyte specific data
Bryophyte group	Select from drop-down list
Gymnosperm specific data
Sperm flagella number	Select from drop-down list
Gymnosperm group	Select from drop-down list
Pteridophyte specific data
Pteridophyte group	Select from drop-down list
Sperm flagella number	Select from drop-down list
Spore type	Select from drop-down list
Sporangial type	Select from drop-down list