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On the Spread of Five Nonnative Ferns in Georgia 论五种外来蕨类植物在格鲁吉亚的传播
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-08-28 DOI: 10.1640/0002-8444-110.3.95
R. Wyatt
{"title":"On the Spread of Five Nonnative Ferns in Georgia","authors":"R. Wyatt","doi":"10.1640/0002-8444-110.3.95","DOIUrl":"https://doi.org/10.1640/0002-8444-110.3.95","url":null,"abstract":"Abstract. Compared to most other groups of vascular plants, ferns have been neglected with respect to the potential for nonnative species to invade native plant communities and displace native species. Targeted collecting in the Piedmont of northeast Georgia uncovered five nonnative ferns that represent range extensions or provide clear confirmation of naturalization. Examination of herbarium specimens from Georgia revealed that some earlier records, as well as some overlooked records, were based on misidentifications. The species involved (Cyrtomium fortunei, Deparia petersenii, Dryopteris erythrosora, Macrothelypteris torresiana, and Pteris multifida) are all introductions from temperate regions in East Asia and represent escapes from cultivation. Study of Georgia collections held in herbaria from throughout the Southeast allowed determination of the first appearance and subsequent range expansion of the five species over time. These data and information about mating systems, ploidy level, and ecological requirements of each species allowed inferences to be made about their probable spread in the future, including effects of climate change.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"111 - 95"},"PeriodicalIF":0.8,"publicationDate":"2020-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43512520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Spore dispersal of Selaginella denticulata, S. helvetica, and S. selaginoides, and the significance of heterospory in Selaginellacae 小齿卷柏、helvetica卷柏和selaginides卷柏的孢子散布及其异孢子的意义
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-05-28 DOI: 10.1640/0002-8444-110.2.58
J. Schneller, M. Kessler
{"title":"Spore dispersal of Selaginella denticulata, S. helvetica, and S. selaginoides, and the significance of heterospory in Selaginellacae","authors":"J. Schneller, M. Kessler","doi":"10.1640/0002-8444-110.2.58","DOIUrl":"https://doi.org/10.1640/0002-8444-110.2.58","url":null,"abstract":"Abstract. Little is known about the functional significance of heterospory in land plants, nor about how species ensure that mega- and microspores, which have strongly different wind dispersal, are dispersed over similar distances to ensure cross-fertilization. We studied active ejection distances and heights of megaspores of Selaginella denticulata, S. helvetica, and S. selaginoides. Under laboratory conditions, the maximum horizontal and vertical ejection distances of megaspores from the sporangia were 24 cm and 22 cm for S. denticulata, 65 cm and 45 cm for S. helvetica, and 120 cm and 76 cm for S. selaginoides. The function of this active spore ejection thus should not only be seen in the ability of horizontal dispersal but also as a means to bring the megaspores into the wind currents. Under laboratory conditions, microspores of all three species showed a maximum horizontal ejection distance of about 10 cm. However, experiments in the open showed that under natural conditions with wind, microspore dispersal occurs over much longer distances and that the megaspores are partly also wind assisted and reach similar distances. In addition, we observed synaptospory, in which microspores electrostatically adhered to megaspores and were dispersed with them. Our results suggest that the active ejection of the megaspores is a means of ensuring similar dispersal distances of micro- and megaspores and thus cross-fertilization. Very little is known about the breeding system in Selaginella, but we surmise that both self-fertilization and outcrossing occur.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"58 - 65"},"PeriodicalIF":0.8,"publicationDate":"2020-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47946183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Pteris tremula (Polypodiopsida: Pteridaceae): A Naturalized Species in Argentina 翅蕨(水蛭科:翼蕨科):阿根廷归化种
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-05-28 DOI: 10.1640/0002-8444-110.2.66
M. D. Arana, P. C. Berrueta, D. Gorrer, G. Giudice, M. L. Luna
{"title":"Pteris tremula (Polypodiopsida: Pteridaceae): A Naturalized Species in Argentina","authors":"M. D. Arana, P. C. Berrueta, D. Gorrer, G. Giudice, M. L. Luna","doi":"10.1640/0002-8444-110.2.66","DOIUrl":"https://doi.org/10.1640/0002-8444-110.2.66","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"66 - 69"},"PeriodicalIF":0.8,"publicationDate":"2020-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43251143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Anemia tabascana (Anemiaceae), a new species from southeastern Mexico 烟草银莲花（银莲花科），墨西哥东南部的一个新种
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-05-28 DOI: 10.1640/0002-8444-110.2.51
C. Carvajal-Hernández, Ena E. Córdova-Hernández, T. Krömer, C. M. Burelo-Ramos
{"title":"Anemia tabascana (Anemiaceae), a new species from southeastern Mexico","authors":"C. Carvajal-Hernández, Ena E. Córdova-Hernández, T. Krömer, C. M. Burelo-Ramos","doi":"10.1640/0002-8444-110.2.51","DOIUrl":"https://doi.org/10.1640/0002-8444-110.2.51","url":null,"abstract":"Abstract. We describe Anemia tabascana (Anemiaceae), a new species from the state of Tabasco in southeastern Mexico. This species is similar to Anemia phyllitidis and Anemia×paraphyllitidis; however, A. tabascana has free veins in the pinnae, and the rachis and distal part of the stipe are glabrescent (vs. at least sparsely pubescent in presumably related species). The closest relative of the new species may be Anemia nicaraguensis, which has a similar venation pattern and inclined fertile pinnae but differs in having more rounded or subacute pinna tips, fewer and more equilateral pinnae, and more numerous hairs on the stipes and blades.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"51 - 57"},"PeriodicalIF":0.8,"publicationDate":"2020-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44595153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
First Evidence of Naturalization of the Black Tree Fern, Cyathea medullaris, in Madeira Island (Portugal) 葡萄牙马德拉岛黑桫椤(Cyathea medullaris)归化的首个证据
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-05-28 DOI: 10.1640/0002-8444-110.2.70
R. Jesu, Riccardo Anfonso
{"title":"First Evidence of Naturalization of the Black Tree Fern, Cyathea medullaris, in Madeira Island (Portugal)","authors":"R. Jesu, Riccardo Anfonso","doi":"10.1640/0002-8444-110.2.70","DOIUrl":"https://doi.org/10.1640/0002-8444-110.2.70","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"70 - 74"},"PeriodicalIF":0.8,"publicationDate":"2020-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49114359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Goniopteris moranii (syn.: Thelypteris guadalupensis; Thelypteridaceae), New to Florida and the Continental United States moraniteris guadalupensis(同:the ypteris guadalupensis);蕨科)，新产于佛罗里达和美国大陆
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-05-28 DOI: 10.1640/0002-8444-110.2.75
J. Lange, C. Angelo
{"title":"Goniopteris moranii (syn.: Thelypteris guadalupensis; Thelypteridaceae), New to Florida and the Continental United States","authors":"J. Lange, C. Angelo","doi":"10.1640/0002-8444-110.2.75","DOIUrl":"https://doi.org/10.1640/0002-8444-110.2.75","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"75 - 78"},"PeriodicalIF":0.8,"publicationDate":"2020-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45483310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Florence Signaigo Wagner 1919–2019 佛罗伦萨·西格纳戈·瓦格纳1919-2019
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-02-17 DOI: 10.1640/0002-8444-110.1.1
A. Reznicek
{"title":"Florence Signaigo Wagner 1919–2019","authors":"A. Reznicek","doi":"10.1640/0002-8444-110.1.1","DOIUrl":"https://doi.org/10.1640/0002-8444-110.1.1","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"1 - 2"},"PeriodicalIF":0.8,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67383139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Jamesonia ×intermedia: A New Hybrid Between J. biardii and J. insignis (Pteridaceae) from Brazil Jamesonia×intermedia：巴西盾翅目盾翅目和盾翅目的新杂交种
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-02-05 DOI: 10.1640/0002-8444-110.1.20
A. Della, C. M. Mynssen, J. Prado
{"title":"Jamesonia ×intermedia: A New Hybrid Between J. biardii and J. insignis (Pteridaceae) from Brazil","authors":"A. Della, C. M. Mynssen, J. Prado","doi":"10.1640/0002-8444-110.1.20","DOIUrl":"https://doi.org/10.1640/0002-8444-110.1.20","url":null,"abstract":"Abstract. This paper describes and illustrates a new hybrid, Jamesonia 3intermedia, from Serra dos Órgãos, Rio de Janeiro State, Brazil. The hybrid, most of whose spores are aborted, shows intermediate morphology between its putative parents (J. biardii and J. insignis) in lamina dissection, shape of the ultimate segments, and pubescence of the adaxial surface of the pinnae and rachises.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"20 - 28"},"PeriodicalIF":0.8,"publicationDate":"2020-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42259721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mothers of Pteridology 《鸟类学之母
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-02-05 DOI: 10.1640/0002-8444-110.1.3
S. P. Kinosian, J. Suissa
{"title":"Mothers of Pteridology","authors":"S. P. Kinosian, J. Suissa","doi":"10.1640/0002-8444-110.1.3","DOIUrl":"https://doi.org/10.1640/0002-8444-110.1.3","url":null,"abstract":"Abstract. Women have long been underrepresented in STEM, although there are certain fields within this umbrella that show less of a disparity — the biological sciences being one example. Within biology, pteridology has a rich history of female contributors involved since its inception. In this review we strive to highlight some of the foremost female pteridologists including Elizabeth Knight Britton, Alma Stokey, Irene Manton, Alice Tryon, Barbara Hoshizaki, and Florence Wagner. This is not an exhaustive list, but rather an insight into the strong maternal lineage of the fern and lycophyte community. While the field would not be the same without the work of many male pteridologists, herein we emphasize the important contributions that these founding women have made. Some of the research conducted by early female pteridologists was largely undermined by their time and circumstance; here we bring their lives and works to the foreground. Furthermore, we hope this paper inspires young botanists to enter our unique and historically rich field.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"19 - 3"},"PeriodicalIF":0.8,"publicationDate":"2020-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48236229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Hybrid Fern Polystichum × arendsii 杂交Fern Polystichum×arendsii
IF 0.8 4区 生物学
American Fern Journal Pub Date : 2020-02-05 DOI: 10.1640/0002-8444-110.1.42
Siegfried Piller
{"title":"The Hybrid Fern Polystichum × arendsii","authors":"Siegfried Piller","doi":"10.1640/0002-8444-110.1.42","DOIUrl":"https://doi.org/10.1640/0002-8444-110.1.42","url":null,"abstract":"Abstract. The hybrid Polystichum × arendsii was first bred by Georg Arends at the turn of the 20th century. It was an artificial cross between P. munitum (Kaulf.) C. Presl, native to north western North America, and P. aculeatum (L.) Roth, occurring in the Eurasian region. In 1906 the well-known Swiss botanist Konrad H. Christ applied the name Aspidium × arendsii to this hybrid. In the following decades the fern was lost and its name was forgotten. The present study investigates the history of the hybrid. In the interim, the cross has been successfully carried out once again and a new description of P. × arendsii is provided. Study of herbarium material and comparison of the information supplied by Konrad H. Christ, as well as the analysis of the spores, confirmed that the hybrid corresponds with the original A. × arendsii and a necessary valid combination under Polystichum is provided.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"42 - 49"},"PeriodicalIF":0.8,"publicationDate":"2020-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48254076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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