Diatoms of North AmericaDiatoms of North America
Return to overview

Guide to Halamphora elongata

Bennett and Kociolek 2014

Halamphora Subcapitata Guide
Credit: Jeffery Stone
  1. Dorsal margin strongly arched
  2. Hyaline area on dorsal side small, or absent
  3. Areolae dash-like
  4. Dorsal side with thickened virgae
  5. Valve ends protracted

Valves have a strongly arched dorsal margin, with with protracted valve ends. The central dorsal valve has thickened virgae, formed by internal costae. The hyaline area in the central, dorsal side of the valve is very small, or may be absent. Striae are formed by dash-like areolae.

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