Add to ORKGThis investigation was undertaken to determine qualitatively the complement of diatom species in six different soils in the vicinity of Iowa City, Iowa. Separating diatoms from the various soils and cleaning them presented a problem requiring the trial of several existing techniques
A collection made near the base of a small waterfall in Marion County, Iowa, was examined. A total o...
Biweekly diatom collections and chemical analyses were made in the autumn of 1970 from sites on Brew...
Thirty-four genera and 64 species, varieties, and forms of diatoms are reported from a survey of thr...
This investigation was undertaken to determine qualitatively the complement of diatom species in six...
Within the last two years the author has often had occasion to congratulate himself for having acted...
The three dominant groups of algae found in Iowa are Chlorophyta (green algae), Cyanophyta (blue-gre...
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. ...
Previous to the present year no fossil diatoms had been found in Iowa. On October 20, 1898, Prof. J....
Analysis of water samples from 10 fens in NE Iowa, collected 13-14 November 1987, revealed a gradien...
A total of 107 diatom taxa representing 22 genera was identified from four microhabitats in a northe...
Diatoms were found to be the dominant plankters in Iowa farm ponds. A winter bloom of Synedra acus v...
The 47 diatom taxa listed here plus the 43 taxa in the genus Pinnularia reported earlier (Christense...
This is the second in a series of articles on Iowa diatoms. The first article appeared in the Dec. 1...
A collection made near the base of a small waterfall in Marion County, Iowa, was examined. A total o...
Biweekly diatom collections and chemical analyses were made in the autumn of 1970 from sites on Brew...
Thirty-four genera and 64 species, varieties, and forms of diatoms are reported from a survey of thr...
This investigation was undertaken to determine qualitatively the complement of diatom species in six...
Within the last two years the author has often had occasion to congratulate himself for having acted...
The three dominant groups of algae found in Iowa are Chlorophyta (green algae), Cyanophyta (blue-gre...
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. ...
Previous to the present year no fossil diatoms had been found in Iowa. On October 20, 1898, Prof. J....
Analysis of water samples from 10 fens in NE Iowa, collected 13-14 November 1987, revealed a gradien...
A total of 107 diatom taxa representing 22 genera was identified from four microhabitats in a northe...
Diatoms were found to be the dominant plankters in Iowa farm ponds. A winter bloom of Synedra acus v...
The 47 diatom taxa listed here plus the 43 taxa in the genus Pinnularia reported earlier (Christense...
This is the second in a series of articles on Iowa diatoms. The first article appeared in the Dec. 1...
A collection made near the base of a small waterfall in Marion County, Iowa, was examined. A total o...
Biweekly diatom collections and chemical analyses were made in the autumn of 1970 from sites on Brew...
Thirty-four genera and 64 species, varieties, and forms of diatoms are reported from a survey of thr...