{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/54852"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/54852","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Growth and development of Nivatogastrium, a gastromycete related to Pholiota","abstract":"The morphological features of <i>Nivatogastrium nubigenum</i> are compared with closely related gastromycetes and lamellate agarics. Only one genus, <i>Pholiota</i> in the Cortinaricaeae, was found to have many features similar to <i>N. nubigenum</i>. The subgenus <i>Flammuloides</i> has many features in common with this gasteromycete. The fruiting bodies and cultural characteristics of <i>P. decorata, P. scamba, P. spumosa, and P. subangularis</i> are compared with <i>N. nubigenum</i>. All of the fungi studied are found in the western United States on conifer wood. Smooth, brown, thick-walled spores, large cystidia, and a somewhat visicid pileus are found in these species. Thick-walled cystidia, similar to those found in <i>P. decorata</i>, are reported for the first time in <i>N. nubigenum</i>. Growth rates, oxidase reactions, and morphological features were found to be similar for <i>N. nubigenum, P. decorata. and P. spumosa</i>. Positive oxidase tests, oidia, amorphous refractive bodies, \"textura intricata\" and inflated hyphal cells were found in these three similar species. Different media were used and additional morphological features were found that can be used to distinguish the species.","abstract_html":"The morphological features of &lt;i&gt;Nivatogastrium nubigenum&lt;/i&gt; are compared with closely related gastromycetes and lamellate agarics. Only one genus, &lt;i&gt;Pholiota&lt;/i&gt; in the Cortinaricaeae, was found to have many features similar to &lt;i&gt;N. nubigenum&lt;/i&gt;. The subgenus &lt;i&gt;Flammuloides&lt;/i&gt; has many features in common with this gasteromycete. The fruiting bodies and cultural characteristics of &lt;i&gt;P. decorata, P. scamba, P. spumosa, and P. subangularis&lt;/i&gt; are compared with &lt;i&gt;N. nubigenum&lt;/i&gt;. All of the fungi studied are found in the western United States on conifer wood. Smooth, brown, thick-walled spores, large cystidia, and a somewhat visicid pileus are found in these species. Thick-walled cystidia, similar to those found in &lt;i&gt;P. decorata&lt;/i&gt;, are reported for the first time in &lt;i&gt;N. nubigenum&lt;/i&gt;. Growth rates, oxidase reactions, and morphological features were found to be similar for &lt;i&gt;N. nubigenum, P. decorata. and P. spumosa&lt;/i&gt;. Positive oxidase tests, oidia, amorphous refractive bodies, &quot;textura intricata&quot; and inflated hyphal cells were found in these three similar species. Different media were used and additional morphological features were found that can be used to distinguish the species.","abstract_has_math":false,"creators":["Ray, Ilene Baxter"],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Botany","degree_department":"Botany","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1974,"date_issued":"1974","date_published":"1974","updated_at":"2026-07-22T22:19:18Z","subjects":[],"languages":["en_US"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/54852","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Botany"]},{"key":"dc:creator","label":"Author","values":["Ray, Ilene Baxter"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2015-07-28T20:42:15Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2015-07-28T20:42:15Z"]},{"key":"dc:date.issued","label":"Date","values":["1974"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Botany"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/54852"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The morphological features of <i>Nivatogastrium nubigenum</i> are compared with closely related gastromycetes and lamellate agarics. Only one genus, <i>Pholiota</i> in the Cortinaricaeae, was found to have many features similar to <i>N. nubigenum</i>. The subgenus <i>Flammuloides</i> has many features in common with this gasteromycete. The fruiting bodies and cultural characteristics of <i>P. decorata, P. scamba, P. spumosa, and P. subangularis</i> are compared with <i>N. nubigenum</i>. All of the fungi studied are found in the western United States on conifer wood. Smooth, brown, thick-walled spores, large cystidia, and a somewhat visicid pileus are found in these species. Thick-walled cystidia, similar to those found in <i>P. decorata</i>, are reported for the first time in <i>N. nubigenum</i>. Growth rates, oxidase reactions, and morphological features were found to be similar for <i>N. nubigenum, P. decorata. and P. spumosa</i>. Positive oxidase tests, oidia, amorphous refractive bodies, \"textura intricata\" and inflated hyphal cells were found in these three similar species. Different media were used and additional morphological features were found that can be used to distinguish the species."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Growth and development of Nivatogastrium, a gastromycete related to Pholiota"]}]}],"canonical_facts":{"dc:contributor.department":["Botany"],"dc:creator":["Ray, Ilene Baxter"],"dc:date.accessioned":["2015-07-28T20:42:15Z"],"dc:date.available":["2015-07-28T20:42:15Z"],"dc:date.issued":["1974"],"dc:description.abstract":["The morphological features of <i>Nivatogastrium nubigenum</i> are compared with closely related gastromycetes and lamellate agarics. Only one genus, <i>Pholiota</i> in the Cortinaricaeae, was found to have many features similar to <i>N. nubigenum</i>. The subgenus <i>Flammuloides</i> has many features in common with this gasteromycete. The fruiting bodies and cultural characteristics of <i>P. decorata, P. scamba, P. spumosa, and P. subangularis</i> are compared with <i>N. nubigenum</i>. All of the fungi studied are found in the western United States on conifer wood. Smooth, brown, thick-walled spores, large cystidia, and a somewhat visicid pileus are found in these species. Thick-walled cystidia, similar to those found in <i>P. decorata</i>, are reported for the first time in <i>N. nubigenum</i>. Growth rates, oxidase reactions, and morphological features were found to be similar for <i>N. nubigenum, P. decorata. and P. spumosa</i>. Positive oxidase tests, oidia, amorphous refractive bodies, \"textura intricata\" and inflated hyphal cells were found in these three similar species. Different media were used and additional morphological features were found that can be used to distinguish the species."],"dc:description.degree":["Master of Science"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10919/54852"],"dc:language.iso":["en_US"],"dc:publisher":["Virginia Polytechnic Institute and State University"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Growth and development of Nivatogastrium, a gastromycete related to Pholiota"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Botany"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:19:18Z"}