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Diatom Image Database

Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .

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Map of south Florida Loxahatchee (LOX) WCA 2A WCA 3A Biscayne Bay Shark River Slough (SRS) Taylor Slough (TS) Florida Bay Everglades National Park (ENP) Everglades National Park (ENP)

Pinnularia ruttneri

Pinnularia ruttneri


Authority:
Hustedt
Year:
1934
References:
Podzorski, A. C. (1985). An Illustrated and Annotated Check-List of Diatoms from the Black River Waterways, St. Elizabeth, Jamaica. in: Bibliotheca Diatomologica 7, pp. 47; 122-123 [pl.17:1-2]
Description:
Valve is elliptic-linear, sometimes slightly swollen in the middle portion, with broadly rounded ends; axial area is 24-26% of valve breadth, widening into an orbicular central area occupying 37-44% of the valve breadth; central nodule is distinct; raphe is complex, with proximal ends curving slightly to one side and large distal ends curving in the opposite direction ("question mark" shaped); striae are radiate at the centre, becoming convergent towards the ends, and crossed by a narrow band; length is 93-129µm, breadth is 11-21µm; striae count is 8-9 in 10µm
Notes:
specimen recorded is slightly longer than type
Projects:
  • Transect Project


    • Sample localities:
  • Water Conservation Area 2A (WCA 2A)