Pub Date : 2022-11-07DOI: 10.1640/0002-8444-112.4.336
J. Suissa, Y. Preisler, J. E. Watkins, L. A. McCulloch
Abstract. Climate change is expected to increase temperature and temporal precipitation variability leading to higher evapotranspiration and more frequent and severe droughts. While advancements are being made in our understanding of how plants will respond to these changes, gaps remain in our knowledge of species-specific drought response. This is especially true among herbaceous plant communities, including ferns and other seed-free vascular plants. Previous hydraulic work on ferns has almost exclusively concentrated on the leaves, with very little information on the rhizome, which is surprising given that the rhizome is the long-lived perennial organ (making it more costly and important in species survival). Only recently have rhizome hydraulics been explored in the context of drought stress. Similar to observations in many woody trees, fern leaves tend to desiccate and hydraulically disconnect before the perennial stem experiences significant levels of drought-induced embolism, suggesting strong vulnerability segmentation. These findings have significant implications for fern survival during drought. In this review we expand on these observations, integrating information from previous work on plant hydraulics and ecophysiology, to understand the implications of vulnerability segmentation on the response of ferns to future climate change.
{"title":"Vulnerability Segmentation in Ferns and Its Implication on Their Survival During Drought","authors":"J. Suissa, Y. Preisler, J. E. Watkins, L. A. McCulloch","doi":"10.1640/0002-8444-112.4.336","DOIUrl":"https://doi.org/10.1640/0002-8444-112.4.336","url":null,"abstract":"Abstract. Climate change is expected to increase temperature and temporal precipitation variability leading to higher evapotranspiration and more frequent and severe droughts. While advancements are being made in our understanding of how plants will respond to these changes, gaps remain in our knowledge of species-specific drought response. This is especially true among herbaceous plant communities, including ferns and other seed-free vascular plants. Previous hydraulic work on ferns has almost exclusively concentrated on the leaves, with very little information on the rhizome, which is surprising given that the rhizome is the long-lived perennial organ (making it more costly and important in species survival). Only recently have rhizome hydraulics been explored in the context of drought stress. Similar to observations in many woody trees, fern leaves tend to desiccate and hydraulically disconnect before the perennial stem experiences significant levels of drought-induced embolism, suggesting strong vulnerability segmentation. These findings have significant implications for fern survival during drought. In this review we expand on these observations, integrating information from previous work on plant hydraulics and ecophysiology, to understand the implications of vulnerability segmentation on the response of ferns to future climate change.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"336 - 353"},"PeriodicalIF":0.8,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41784692","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}
Pub Date : 2022-11-07DOI: 10.1640/0002-8444-112.4.303
Daniela Aros-Mualin, J. Flexas, Florian Galbier, M. Kessler
Abstract. Marsileaceae is a unique family of semi-aquatic ferns mainly growing in seasonal wetlands worldwide. These habitats present several challenges, since plants go from being wholly submerged to being exposed to aerial conditions, increasing drought stress. Although heterophylly has been studied as an adaptation to these environmental changes, there are still many unanswered questions concerning the mechanisms underlying the ecology of Marsileaceae. We studied the presence of circadian regulation in stomatal conductance, carbon assimilation rate, intrinsic water-use efficiency (iWUE), and leaf movement of four species from all three genera of Marsileaceae, and related our findings to possible water stress adaptations. No circadian regulation was detected in Pilularia globulifera, whereas Regnellidium diphyllum and two Marsilea species had an apparent rhythm in their stomatal conductance and iWUE, with species-specific patterns. Moreover, light-independent leaf movement was only found in Marsilea species. Taken together, the rhythm in iWUE and leaf movement, along with other anatomical traits for conserving water, infers different strategies to either increase carbon gain or reduce water use in Marsileaceae. Our study represents the first steps towards understanding the underlying drivers and adaptive value of circadian regulation in this family.
{"title":"Exploring the Ecological Relevance and Variability of Circadian Regulation in Marsileaceae","authors":"Daniela Aros-Mualin, J. Flexas, Florian Galbier, M. Kessler","doi":"10.1640/0002-8444-112.4.303","DOIUrl":"https://doi.org/10.1640/0002-8444-112.4.303","url":null,"abstract":"Abstract. Marsileaceae is a unique family of semi-aquatic ferns mainly growing in seasonal wetlands worldwide. These habitats present several challenges, since plants go from being wholly submerged to being exposed to aerial conditions, increasing drought stress. Although heterophylly has been studied as an adaptation to these environmental changes, there are still many unanswered questions concerning the mechanisms underlying the ecology of Marsileaceae. We studied the presence of circadian regulation in stomatal conductance, carbon assimilation rate, intrinsic water-use efficiency (iWUE), and leaf movement of four species from all three genera of Marsileaceae, and related our findings to possible water stress adaptations. No circadian regulation was detected in Pilularia globulifera, whereas Regnellidium diphyllum and two Marsilea species had an apparent rhythm in their stomatal conductance and iWUE, with species-specific patterns. Moreover, light-independent leaf movement was only found in Marsilea species. Taken together, the rhythm in iWUE and leaf movement, along with other anatomical traits for conserving water, infers different strategies to either increase carbon gain or reduce water use in Marsileaceae. Our study represents the first steps towards understanding the underlying drivers and adaptive value of circadian regulation in this family.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"303 - 319"},"PeriodicalIF":0.8,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41512032","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}
Pub Date : 2022-11-07DOI: 10.1640/0002-8444-112.4.227
K. Mehltreter, S. McAdam
{"title":"Ecology and Ecophysiology of Ferns and Lycophytes in a Changing Climate: A Special Issue of the American Fern Journal","authors":"K. Mehltreter, S. McAdam","doi":"10.1640/0002-8444-112.4.227","DOIUrl":"https://doi.org/10.1640/0002-8444-112.4.227","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"227 - 232"},"PeriodicalIF":0.8,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42114651","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}
Pub Date : 2022-11-07DOI: 10.1640/0002-8444-112.4.269
Evelin B. Castrejon-Alfaro, Michelle Ramos-Robles, K. Aguilar-Dorantes
Abstract. Phenological leaf characters of tropical ferns are often correlated with rainfall and temperature, especially in regions with pronounced dry and wet seasons. In this study, we describe the community- and species-level phenological patterns of leaf phenophases (young, non-fertile, fertile, senescent) of terrestrial ferns and their relationship with environmental variables in a Tropical Dry Forest over 15 months. At the community level, each phenophase was related to a different variable. The young phenophase was positively associated with precipitation, while non-fertile was positively associated with humidity, fertile was negatively associated with canopy cover, and senescent phenophase was not associated with any variable. At the species level, all fern species showed the peak leaf production of each phenophase in the rainy season. However, each phenophase was present during different periods of the rainy season; at the beginning, it was the young phenophase, in the middle, the non-fertile and fertile phenophase, and at the end, the senescent. Such phenological studies will help us understand how fern species change over time and modify their strategies, especially at the community level, in the face of imminent global climate change.
{"title":"Phenology of the Terrestrial Fern Community in a Tropical Dry Forest of Morelos, Mexico","authors":"Evelin B. Castrejon-Alfaro, Michelle Ramos-Robles, K. Aguilar-Dorantes","doi":"10.1640/0002-8444-112.4.269","DOIUrl":"https://doi.org/10.1640/0002-8444-112.4.269","url":null,"abstract":"Abstract. Phenological leaf characters of tropical ferns are often correlated with rainfall and temperature, especially in regions with pronounced dry and wet seasons. In this study, we describe the community- and species-level phenological patterns of leaf phenophases (young, non-fertile, fertile, senescent) of terrestrial ferns and their relationship with environmental variables in a Tropical Dry Forest over 15 months. At the community level, each phenophase was related to a different variable. The young phenophase was positively associated with precipitation, while non-fertile was positively associated with humidity, fertile was negatively associated with canopy cover, and senescent phenophase was not associated with any variable. At the species level, all fern species showed the peak leaf production of each phenophase in the rainy season. However, each phenophase was present during different periods of the rainy season; at the beginning, it was the young phenophase, in the middle, the non-fertile and fertile phenophase, and at the end, the senescent. Such phenological studies will help us understand how fern species change over time and modify their strategies, especially at the community level, in the face of imminent global climate change.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"269 - 284"},"PeriodicalIF":0.8,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41856170","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}
Pub Date : 2022-11-07DOI: 10.1640/0002-8444-112.4.251
J. Sharpe
Abstract. Two long-term studies were conducted in a rainforest in Puerto Rico that included measurements of leaf and plant functional traits of the common fern species Steiropteris deltoidea. A Fern Demography study (1993-2009) compared annual variation and effects of a category 3 hurricane (Georges, 1998) on fertile and sterile leaf traits. A second long-term study (2003-2019), the Canopy Trimming Experiment, evaluated annual variation in growth and reproduction of S. deltoidea in response to two experimentally simulated and one category 4 hurricane (Maria, 2017). In the Fern Demography study, differences between fertile and sterile leaf production rates and plant leaf count of S. deltoidea were significant while leaf lengths and lifespans did not differ between leaf types. Fertile (but not sterile) leaf production increased three-fold after Hurricane Georges but declined 10-fold by the end of the study. Leaf lifespans of cohorts emerging before and in the three years after Hurricane Georges were significantly shortened by tree and debris fall. Elevated production of fertile leaves and increased plant leaf counts followed the two simulated hurricanes of the Canopy Trimming experiment and two natural hurricanes. Steiropteris deltoidea exhibits a level of interannual flexibility in some growth and reproductive traits in response to a changed understory environment that suggests it may be a good indicator species for evaluating microhabitat hurricane effects. Although S. deltoidea exhibited resilience, predicted increases in frequency and magnitude of hurricanes in response to climate change may test the limits of life history strategies of rainforest understory ferns.
{"title":"Long-term Studies of Annual Variation in Growth and Reproduction of the Understory Fern Steiropteris deltoidea in a Hurricane-prone Rainforest in Puerto Rico","authors":"J. Sharpe","doi":"10.1640/0002-8444-112.4.251","DOIUrl":"https://doi.org/10.1640/0002-8444-112.4.251","url":null,"abstract":"Abstract. Two long-term studies were conducted in a rainforest in Puerto Rico that included measurements of leaf and plant functional traits of the common fern species Steiropteris deltoidea. A Fern Demography study (1993-2009) compared annual variation and effects of a category 3 hurricane (Georges, 1998) on fertile and sterile leaf traits. A second long-term study (2003-2019), the Canopy Trimming Experiment, evaluated annual variation in growth and reproduction of S. deltoidea in response to two experimentally simulated and one category 4 hurricane (Maria, 2017). In the Fern Demography study, differences between fertile and sterile leaf production rates and plant leaf count of S. deltoidea were significant while leaf lengths and lifespans did not differ between leaf types. Fertile (but not sterile) leaf production increased three-fold after Hurricane Georges but declined 10-fold by the end of the study. Leaf lifespans of cohorts emerging before and in the three years after Hurricane Georges were significantly shortened by tree and debris fall. Elevated production of fertile leaves and increased plant leaf counts followed the two simulated hurricanes of the Canopy Trimming experiment and two natural hurricanes. Steiropteris deltoidea exhibits a level of interannual flexibility in some growth and reproductive traits in response to a changed understory environment that suggests it may be a good indicator species for evaluating microhabitat hurricane effects. Although S. deltoidea exhibited resilience, predicted increases in frequency and magnitude of hurricanes in response to climate change may test the limits of life history strategies of rainforest understory ferns.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"251 - 268"},"PeriodicalIF":0.8,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46069495","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}
Pub Date : 2022-08-19DOI: 10.1640/0002-8444-112.3.190
Jovani B. S. Pereira, J. Prado
Abstract. Revealing the unrecognized diversity within cryptic species has profound implications in the taxonomy, systematics, evolutionary studies, and species protections throughout plant groups. Isoëtes is prone to a high rate of cryptic speciation because of its morphological simplicity, stasis, and convergence. Phylogenetic studies revealed cryptic species in the genus from the Brazilian semi-arid region (the Caatinga), which comprises the least studied and most endangered flora in Brazil. Here we conducted morphological analyses and chromosome counts, and took advantage of phylogenetic analyses already published for the genus to provide a taxonomic revision of Isoëtes from the Caatinga. Isoëtes anamariae and I. harleyi are two new species, which were revealed by molecular data and subtle morphological characters. This study provides descriptions, chromosome counts, illustrations of the most important morpho-taxonomic characters of species from the Caatinga, and a key to identify them. All species from this region are diploid and we show the importance of diploids in detangling the origin of polyploids in Brazil.
{"title":"Taxonomy of Cryptic Isoëtes Species from the Brazilian Semi-Arid Region, with a Note about the Putative Maternal Origin of Polyploids","authors":"Jovani B. S. Pereira, J. Prado","doi":"10.1640/0002-8444-112.3.190","DOIUrl":"https://doi.org/10.1640/0002-8444-112.3.190","url":null,"abstract":"Abstract. Revealing the unrecognized diversity within cryptic species has profound implications in the taxonomy, systematics, evolutionary studies, and species protections throughout plant groups. Isoëtes is prone to a high rate of cryptic speciation because of its morphological simplicity, stasis, and convergence. Phylogenetic studies revealed cryptic species in the genus from the Brazilian semi-arid region (the Caatinga), which comprises the least studied and most endangered flora in Brazil. Here we conducted morphological analyses and chromosome counts, and took advantage of phylogenetic analyses already published for the genus to provide a taxonomic revision of Isoëtes from the Caatinga. Isoëtes anamariae and I. harleyi are two new species, which were revealed by molecular data and subtle morphological characters. This study provides descriptions, chromosome counts, illustrations of the most important morpho-taxonomic characters of species from the Caatinga, and a key to identify them. All species from this region are diploid and we show the importance of diploids in detangling the origin of polyploids in Brazil.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"190 - 206"},"PeriodicalIF":0.8,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42546958","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}
Pub Date : 2022-08-19DOI: 10.1640/0002-8444-112.3.207
Hong‐Mei Liu, D. Cicuzza, B. Parris, Harald Schneider
Abstract. The forests of Borneo are famous for their plant diversity, but this diversity is seriously threatened. Despite remarkable progress, the taxonomic status and geographic distribution of many species have not been clarified. Here, we explore the use of DNA barcoding to improve not only the recording of local species diversity, but also our understanding of the fern Tree-of-Life. We focused specifically on grammitid ferns collected at Gunung Tama Abu in Sarawak. The four new samples comprised three species of which two were studied using molecular phylogenetics for the first time. These three species were found to be nested in clades corresponding to the established generic taxonomy. The two sampled accessions of Acrosorus streptophyllus formed a sister clade to A. friderici-et-pauli. By increasing the inclusion of Acrosorus species from one to two in the assembled phylogenetic hypothesis, our results provide support to the monophyly of this genus based on DNA sequence data for the first time. The newly sampled Borneo accession of Scleroglossum pyxidatum was sister to a clade comprising accessions of S. sulcatum, whereas the sample of Prosaptia alata formed a clade together with other accessions of this species. In conclusion, DNA barcoding of samples obtained during fieldwork in remote but species rich places enhance the recording of the Tree-of-Life and enable the establishment of reliable DNA barcodes for species rich lineages.
{"title":"Phylogenetic Relationships of Grammitid Fern Diversity of Gunung Tama Abu (Sarawak)","authors":"Hong‐Mei Liu, D. Cicuzza, B. Parris, Harald Schneider","doi":"10.1640/0002-8444-112.3.207","DOIUrl":"https://doi.org/10.1640/0002-8444-112.3.207","url":null,"abstract":"Abstract. The forests of Borneo are famous for their plant diversity, but this diversity is seriously threatened. Despite remarkable progress, the taxonomic status and geographic distribution of many species have not been clarified. Here, we explore the use of DNA barcoding to improve not only the recording of local species diversity, but also our understanding of the fern Tree-of-Life. We focused specifically on grammitid ferns collected at Gunung Tama Abu in Sarawak. The four new samples comprised three species of which two were studied using molecular phylogenetics for the first time. These three species were found to be nested in clades corresponding to the established generic taxonomy. The two sampled accessions of Acrosorus streptophyllus formed a sister clade to A. friderici-et-pauli. By increasing the inclusion of Acrosorus species from one to two in the assembled phylogenetic hypothesis, our results provide support to the monophyly of this genus based on DNA sequence data for the first time. The newly sampled Borneo accession of Scleroglossum pyxidatum was sister to a clade comprising accessions of S. sulcatum, whereas the sample of Prosaptia alata formed a clade together with other accessions of this species. In conclusion, DNA barcoding of samples obtained during fieldwork in remote but species rich places enhance the recording of the Tree-of-Life and enable the establishment of reliable DNA barcodes for species rich lineages.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"207 - 220"},"PeriodicalIF":0.8,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47390060","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}
Pub Date : 2022-08-19DOI: 10.1640/0002-8444-112.3.143
T. Ranker, M. Balick, G. Plunkett, K. Harrison, Jean-Pascal Wahe, Martial Wahe
Abstract. We conducted extensive fieldwork in the Tafea Province of Vanuatu from 2014 to 2021 as part of a long-term floristic study of plants and fungi as well as analyses of changes in forest structure and plant diversity in response to the category 5 cyclone Pam. As part of this work, we documented the vernacular names and/or uses of 10 species of lycophytes and 88 species of ferns. Vernacular plant names were documented in the languages endemic to the islands of Aneityum, Futuna, and Tanna, including Anejom, ∼ Futuna-Aniwa, Kwamara, Nafe, Naka, Netwar, Nahuai, and Whitesands. The uses reported by indigenous, Ni-Vanuatu, experts included: body decoration, cultural/spiritual, ornamental, clothing, food/food preparation, handicrafts, medicine, and fiber/construction.
{"title":"Ethnobotany and Vernacular Names of the Lycophytes and Ferns of Tafea Province, Vanuatu","authors":"T. Ranker, M. Balick, G. Plunkett, K. Harrison, Jean-Pascal Wahe, Martial Wahe","doi":"10.1640/0002-8444-112.3.143","DOIUrl":"https://doi.org/10.1640/0002-8444-112.3.143","url":null,"abstract":"Abstract. We conducted extensive fieldwork in the Tafea Province of Vanuatu from 2014 to 2021 as part of a long-term floristic study of plants and fungi as well as analyses of changes in forest structure and plant diversity in response to the category 5 cyclone Pam. As part of this work, we documented the vernacular names and/or uses of 10 species of lycophytes and 88 species of ferns. Vernacular plant names were documented in the languages endemic to the islands of Aneityum, Futuna, and Tanna, including Anejom, ∼ Futuna-Aniwa, Kwamara, Nafe, Naka, Netwar, Nahuai, and Whitesands. The uses reported by indigenous, Ni-Vanuatu, experts included: body decoration, cultural/spiritual, ornamental, clothing, food/food preparation, handicrafts, medicine, and fiber/construction.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"143 - 177"},"PeriodicalIF":0.8,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43413784","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}
Pub Date : 2022-08-19DOI: 10.1640/0002-8444-112.3.221
Michael A. Vincent, Melanie A. Link‐Pérez
{"title":"Memorial: Ralph James Hickey (1950–2020)","authors":"Michael A. Vincent, Melanie A. Link‐Pérez","doi":"10.1640/0002-8444-112.3.221","DOIUrl":"https://doi.org/10.1640/0002-8444-112.3.221","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"221 - 226"},"PeriodicalIF":0.8,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44605343","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}
Pub Date : 2022-08-19DOI: 10.1640/0002-8444-112.3.178
S. Fawcett, Cheng-Wei Chen, Alan R. Smith
Abstract. The Thelypteridaceae is the second most species-rich fern family in the Solomon Islands, representing 47 of the 449 ferns and lycophytes from the islands and a third of its endemic pteridophyte flora. Recently, there has been a major effort to document the botanical diversity of this tropical island archipelago, which has resulted in the discovery and description of several new species of ferns. Here we describe two additional novelties in recently recognized genera, Grypothrix and Reholttumia. We hope that our study of these diverse and often narrowly restricted lineages will encourage others to learn more about these underappreciated islands, and these understudied taxa.
{"title":"Two New Species of Thelypteridaceae from the Solomon Islands","authors":"S. Fawcett, Cheng-Wei Chen, Alan R. Smith","doi":"10.1640/0002-8444-112.3.178","DOIUrl":"https://doi.org/10.1640/0002-8444-112.3.178","url":null,"abstract":"Abstract. The Thelypteridaceae is the second most species-rich fern family in the Solomon Islands, representing 47 of the 449 ferns and lycophytes from the islands and a third of its endemic pteridophyte flora. Recently, there has been a major effort to document the botanical diversity of this tropical island archipelago, which has resulted in the discovery and description of several new species of ferns. Here we describe two additional novelties in recently recognized genera, Grypothrix and Reholttumia. We hope that our study of these diverse and often narrowly restricted lineages will encourage others to learn more about these underappreciated islands, and these understudied taxa.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"112 1","pages":"178 - 189"},"PeriodicalIF":0.8,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44055611","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}
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