Diatoms of North AmericaDiatoms of North America
Return to overview

Guide to Navicula cryptocephala

Kütz. 1844

Navicula Cryptocephala Guide
Credit: Marina Potapova
  1. Valves lanceolate with protracted apices
  2. Central area large, circular
  3. External proximal raphe ends expanded

Valves are lanceolate with protracted apices The central area is large and circular. The raphe is straight, with 'drop-like' expanded external proximal ends. Striae are radiate around the center, becoming convergent at the apices. The areolae are sometimes visible under LM, approximately 35 in 10 μm.

Diatoms of North America is running a fundraising campaign to keep the servers in operation. We need you to reach our $25,000 fundraising goal.

If you use and appreciate DONA, make your DONAtion today.

For the Gift Designation, type "diatom" in the search box and select "Diatom Lab Research Fund". This is the designated fund for diatoms.org.

Donate today