Topic
Phyllachora
About: Phyllachora is a research topic. Over the lifetime, 101 publications have been published within this topic receiving 670 citations.
Papers published on a yearly basis
Papers
TL;DR: This monograph describes the genus Phyllachora as it occurs on members of the Gramineae, discusses the reliability of criteria for delimiting species, and gives a taxonomic account of the PhyllACHora species found on grasses.
Abstract: This monograph describes the genus Phyllachora as it occurs on members of the Gramineae, discusses the reliability of criteria for delimiting species, and gives a taxonomic account of the Phyllachora species found on grasses. A world-wide survey of graminicolous Phyllachora specimens has led to the conclusion that of the 278 species and varieties named in the literature, only 95 are valid species and a further 21 are doubtful species. Of the 95 valid species, three (P. americana, P, longinaviculata, and P. microsperma) have been given new names, and five (P. bulbosa, P. koondrookensis, P. platyelliptica, P. polytocae, and P. rostellispora) are new species. Two species complexes are discussed. The P. fallax complex includes four species which, although fairly readily separated, have several features in common and may be better delimited in future as varieties. The P. shiraiana complex includes seven bambusicolous species, few of which have been seen by the author, and the published descriptions of which are closely similar. It is possible that six of these species are synonyms of P. shiraiana s. str. A key to graminicolous Phyllachora species and a guide to its uses are provided as well as a host index, including 135 grass genera, and an index to Phyllachora species, their synonyms, and doubtful species.
56 citations
Book•
1 Jan 1991
48 citations
TL;DR: Biotrophic members of the Phyllachoraceae are described and illustrated, and their nomenclature assessed, and a number of species names is excluded from the family.
39 citations
Book•
1 Jan 1991
31 citations
TL;DR: The studies upon which this work is based were initiated in 1916 at the New York Botanical Garden under the direction of Dr. F. J. Seaver and resumed at West Virginia University in 1929, where they continued until 1925 when the writer moved to New York to engage in research for the Bayer Company, Inc.
Abstract: The studies upon which this work is based were initiated in 1916 at the New York Botanical Garden under the direction of Dr. F. J. Seaver when the writer was on leave from the Pennsylvania State College and while engaged in graduate work at Columbia University. More specifically it was an outgrowth of cytological studies on Phyllachora graminis under the direction of Professor R. A. Harper. The work was continued at the Pennsylvania State College until 1925 when the writer moved to New York to engage in research for the Bayer Company, Inc., and resumed at West Virginia University in 1929. At no time during these intermittent periods have these studies been pursued as a major task but wholly in an incidental manner outside official working hours. This comment is made to explain in part the long period which has been required to complete them to this point. At first it was planned to monograph the genus Phyllachora but this idea was abandoned when it became evident that the species upon grasses were so numerous, and presented so many difficult problems that it seemed best to restrict this study to the grass-inhabiting forms in North America as delimited geographically in the "North American Flora." Over all these years a large number of specimens has been studied. The collections at the New York Botanical Garden and the United States Department of Agriculture have been examined in considerable detail. In addition, herbaria of Harvard University, Pennsylvania State College, Cornell University, Michigan State College, Iowa State College, Universities of California, Wisconsin, Georgia, Nebraska, Illinois, Purdue, Louisiana State and Oregon State College have all contributed generously. No less notable has been the assistance rendered by those collectors who have faithfully sent collections, thus greatly enlarging the 1Scientific Paper No. 313 of the West Virginia Agricultural Experiment Station. 18
29 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
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| 2021 | 1 |
| 2020 | 2 |
| 2019 | 2 |
| 2018 | 3 |
| 2017 | 2 |
| 2016 | 4 |