Compare

The raphe valves may be mistaken for those of P. apiculatum. The rapheless valves of P. apiculatum, however, possess a cavum – a feature not found in P. delicatulum.

LM scalebar = 10 µm
Gs181995 2A Gc112144B  Nrsa0167  Pldelic1 Gs134565 1A Gs134565 3 1 Gs134565 6 Gc8031  Sabine  Pldel1B
Length Range
12-20 µm
Width Range
4.7-7.5 µm
Striae in 10 µm
13-15

Planothidium apiculatum

(R.M.Patrick) Lange-Bert. 1999

Planothidium apiculatum LM3 Planothidium apiculatum LM1 Planothidium apiculatum LM4 Planothidium apiculatum LM6 Planothidium apiculatum LM2 Planothidium apiculatum LM5 Planothidium apiculatum LM7
Length Range
25-31 µm
Width Range
9.0-12.7 µm
Striae in 10 µm
10-12

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.