Forty-three (43) taxa of Pinnularia collected from a Sphagnum bog in north central Iowa are added to the state records for this genus. The numbers of Pinnularia entities are generally much larger in this habitat than in other Iowa habitats. Furthermore, the size ranges of many taxa exceed those given in published descriptions. As of 1972, published records for the state number sixty-four (64) taxa in this genus
Four diatoms new to science are described and illustrated: Fragillaria vaucheriae f. contorta nov. f...
Seventy-four diatom species, varieties, and forms representing 15 genera were found in collections f...
A list is presented of the 147 species of marsh and aquatic tracheophytes known from Clinton, Jackso...
Forty-three (43) taxa of Pinnularia collected from a Sphagnum bog in north central Iowa are added to...
The 47 diatom taxa listed here plus the 43 taxa in the genus Pinnularia reported earlier (Christense...
A diatom flora associated with a lichen (Collema sp.) and various mosses on a sandstone outcrop in B...
A total of 163 diatom samples were taken from various habitats and locations in Iowa. The habitats s...
A collection made near the base of a small waterfall in Marion County, Iowa, was examined. A total o...
Monthly collections of diatoms and water chemistry analyses were made on two drainage tiles which di...
The physical features of a fen are discussed including chemical and physical analyses of the water. ...
With the addition of the present group of taxa to those reported by Christensen (1969, 1976, 1981) t...
A natural history of the diatoms of Spirit Lake was in preparation by the senior author prior to his...
The first definite mention of Iowa Algae which has come to our notice is that published by Dr. C M. ...
Four diatoms new to science are described and illustrated: Fragillaria vaucheriae f. contorta nov. f...
Seventy-four diatom species, varieties, and forms representing 15 genera were found in collections f...
A list is presented of the 147 species of marsh and aquatic tracheophytes known from Clinton, Jackso...
Forty-three (43) taxa of Pinnularia collected from a Sphagnum bog in north central Iowa are added to...
The 47 diatom taxa listed here plus the 43 taxa in the genus Pinnularia reported earlier (Christense...
A diatom flora associated with a lichen (Collema sp.) and various mosses on a sandstone outcrop in B...
A total of 163 diatom samples were taken from various habitats and locations in Iowa. The habitats s...
A collection made near the base of a small waterfall in Marion County, Iowa, was examined. A total o...
Monthly collections of diatoms and water chemistry analyses were made on two drainage tiles which di...
The physical features of a fen are discussed including chemical and physical analyses of the water. ...
With the addition of the present group of taxa to those reported by Christensen (1969, 1976, 1981) t...
A natural history of the diatoms of Spirit Lake was in preparation by the senior author prior to his...
The first definite mention of Iowa Algae which has come to our notice is that published by Dr. C M. ...
Four diatoms new to science are described and illustrated: Fragillaria vaucheriae f. contorta nov. f...
Seventy-four diatom species, varieties, and forms representing 15 genera were found in collections f...
A list is presented of the 147 species of marsh and aquatic tracheophytes known from Clinton, Jackso...
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