{"title":"距今9900万年前的琥珀中的Endobeuthos paleosum不属于变形虫科","authors":"Byron B. Lamont, Philip G. Ladd","doi":"10.17348/jbrit.v18.i1.1343","DOIUrl":null,"url":null,"abstract":"Species in the family Proteaceae are almost invariably tetramerous with the stamen adnate to a tepal. Andromonoecious inflorescences bearing many male flowers composed of a single (spathuloid) stamen and a female flower with a pubescent stigma, as in Endobeuthos paleosum, are unknown. We suggest that the specimen is a bisexual flower with scores of stamens surrounding a single stigma-style. Further, the specimen is too old to fit with current understanding of the migratory history of the Proteaceae.","PeriodicalId":17307,"journal":{"name":"Journal of the Botanical Research Institute of Texas","volume":"46 25","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Endobeuthos paleosum in 99-million-year-old amber does not belong to the Proteaceae\",\"authors\":\"Byron B. Lamont, Philip G. Ladd\",\"doi\":\"10.17348/jbrit.v18.i1.1343\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Species in the family Proteaceae are almost invariably tetramerous with the stamen adnate to a tepal. Andromonoecious inflorescences bearing many male flowers composed of a single (spathuloid) stamen and a female flower with a pubescent stigma, as in Endobeuthos paleosum, are unknown. We suggest that the specimen is a bisexual flower with scores of stamens surrounding a single stigma-style. Further, the specimen is too old to fit with current understanding of the migratory history of the Proteaceae.\",\"PeriodicalId\":17307,\"journal\":{\"name\":\"Journal of the Botanical Research Institute of Texas\",\"volume\":\"46 25\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Botanical Research Institute of Texas\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.17348/jbrit.v18.i1.1343\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Botanical Research Institute of Texas","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.17348/jbrit.v18.i1.1343","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
Endobeuthos paleosum in 99-million-year-old amber does not belong to the Proteaceae
Species in the family Proteaceae are almost invariably tetramerous with the stamen adnate to a tepal. Andromonoecious inflorescences bearing many male flowers composed of a single (spathuloid) stamen and a female flower with a pubescent stigma, as in Endobeuthos paleosum, are unknown. We suggest that the specimen is a bisexual flower with scores of stamens surrounding a single stigma-style. Further, the specimen is too old to fit with current understanding of the migratory history of the Proteaceae.
期刊介绍：
The Journal of the Botanical Research Institute of Texas, formerly called Sida, Contributions to Botany, publishes research in classical and modern systematic botany—including studies of anatomy, biogeography, chemotaxonomy, ecology, evolution, floristics, genetics, paleobotany, palynology, and phylogenetic systematics. Geographic coverage is global. Articles are published in either English or Spanish; an abstract is provided in both languages. All contributions are peer reviewed and frequently illustrated with maps, line drawings, and full color photographs.
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