A revision of the genus Saprolegnia

The purpose of this investigation is to present a new account of the genus Saprolegnia, to bring together in one paper the published studies dealing with the morphology and taxonomy of the various species, and to add to this information conclusions based upon observations of living material. The majority of living specimens was obtained from 864 collections of water and soil made by the writer and others in eleven states and in Australia, England and India. The procedures used in the isolation and propagation of these fungi is presented. All isolates studied were propagated on a chemically defined medium, as well as, on halves of sterilized hemp seed (Cannabis sativa). Reliable taxonomic criteria are used in the keys provided for the identification of species. As a result of this investigation, fifteen species are recognized as valid members. Three new combinations are proposed. Four species are doubtful and eighteen taxa are excluded from the genus.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Botany

Department dc:contributor.department

Botany

Grantor dc:publisher

Virginia Polytechnic Institute

Year dc:date.issued

1965

Author dc:creator

• Seymour, R. L.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10919/94518

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/94518