American Fern Journal最新文献_第6页

Taxonomy of Cryptic Isoëtes Species from the Brazilian Semi-Arid Region, with a Note about the Putative Maternal Origin of Polyploids 巴西半干旱区隐种Isoëtes的分类及多倍体母系起源的推测

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-08-19 DOI: 10.1640/0002-8444-112.3.190

Jovani B. S. Pereira, J. Prado

{"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":null,"pages":null},"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}

引用次数: 1

Phylogenetic Relationships of Grammitid Fern Diversity of Gunung Tama Abu (Sarawak) 古农·塔玛·阿布（砂拉越）禾本科蕨类植物多样性的系统发育关系

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-08-19 DOI: 10.1640/0002-8444-112.3.207

Hong‐Mei Liu, D. Cicuzza, B. Parris, Harald Schneider

{"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":null,"pages":null},"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}

引用次数: 1

Ethnobotany and Vernacular Names of the Lycophytes and Ferns of Tafea Province, Vanuatu 瓦努阿图塔菲亚省石松和蕨类植物的民族植物学和方言名称

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-08-19 DOI: 10.1640/0002-8444-112.3.143

T. Ranker, M. Balick, G. Plunkett, K. Harrison, Jean-Pascal Wahe, Martial Wahe

引用次数: 0

Memorial: Ralph James Hickey (1950–2020) 纪念馆：拉尔夫·詹姆斯·希基（1950–2020）

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-08-19 DOI: 10.1640/0002-8444-112.3.221

Michael A. Vincent, Melanie A. Link‐Pérez

引用次数: 0

Two New Species of Thelypteridaceae from the Solomon Islands 标题所罗门群岛蕨科两新种

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-08-19 DOI: 10.1640/0002-8444-112.3.178

S. Fawcett, Cheng-Wei Chen, Alan R. Smith

引用次数: 0

Gametophyte Development of Karst- and Danixa-Specific Species of Adiantum Series Gravesiana (Pteridaceae) from China 中国蕨类属喀斯特和达尼沙特有种配子体发育

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-04-26 DOI: 10.1640/0002-8444-112.2.105

XIAO-LING Yu, A. Harris, Lingyun Nie, Ai-Hua Wang, Yan-Yan Liu, FA-GUO Wang

{"title":"Gametophyte Development of Karst- and Danixa-Specific Species of Adiantum Series Gravesiana (Pteridaceae) from China","authors":"XIAO-LING Yu, A. Harris, Lingyun Nie, Ai-Hua Wang, Yan-Yan Liu, FA-GUO Wang","doi":"10.1640/0002-8444-112.2.105","DOIUrl":"https://doi.org/10.1640/0002-8444-112.2.105","url":null,"abstract":"Abstract. The ferns of Adiantum Series Gravesiana (Pteridaceae) consist of species that occur exclusively on Danxia (A. juxtapositum) and Karst (A. mariesii, A. longzhouensis, A. dentatum, A. obovatum, and A. gravesii) landforms. We cultured representatives of these six species from 20 different populations on both agar and soil to investigate and compare their gametophyte development. All species had the Vittaria-type pattern of spore germination except A. obovatum, for which we missed the best time to observe this developmental phase. However, two different patterns of subsequent development were observed: the Adiantum-type (i.e., naked, cordate mature gametophyte thallus) in A. mariesii, A. longzhouensis, A. juxtapositum, and A. gravesii and the Kaulinia-type (i.e., naked, ribbon-shaped mature gametophyte thallus) in A. dentatum and A. obovatum. All populations from A. juxtapositum and A. gravesii possess the same Adiantum-type, suggesting that Karst and Danxia soils were not the main factor causing the differences in gametophyte development. The Kaulinia-type adult thallus has not been observed previously in Adiantum and may be an adaptive strategy for survival within the relatively harsh micro-habitats experienced by A. dentatum and A. obovatum compared to other members of this series.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47332721","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

Characterizing Culturable Bacterial Endophytes of Five Lycopodiaceae Species 五种石松科植物可培养细菌内生菌的鉴定

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-04-26 DOI: 10.1640/0002-8444-112.2.79

A. Petlewski, Ariel Patterson, Fay-Wei Li

引用次数: 0

Notes on Menisciopsis wailele (Thelypteridaceae), a Critically Endangered Rheophytic Fern Species from Kaua‘i, Hawaiian Islands 夏威夷群岛考艾岛一种极度濒危的Rheophytic蕨类植物Menisciopsis waillee（Thelypteridaceae）的注释

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-04-26 DOI: 10.1640/0002-8444-112.2.124

K. R. Wood, S. Fawcett

引用次数: 0

SHORTER NOTE 短音符

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-04-26 DOI: 10.1640/0002-8444-112.2.139

Michal Handel

引用次数: 0

Association of Epiphytic Fern Vittaria lineata with Moss Octoblepharum albidum on Palm Sabal palmetto in Southeast Florida, with Notes on Accompanying Fern Phlebodium aureum 佛罗里达东南部棕榈上附生蕨类Vittaria lineata与苔藓Octoblepharum albidum的关联及其伴生蕨类Phlebodium aureum的注释

IF 0.8 4区生物学

American Fern Journal Pub Date : 2022-04-26 DOI: 10.1640/0002-8444-112.2.93

G. Rogers

{"title":"Association of Epiphytic Fern Vittaria lineata with Moss Octoblepharum albidum on Palm Sabal palmetto in Southeast Florida, with Notes on Accompanying Fern Phlebodium aureum","authors":"G. Rogers","doi":"10.1640/0002-8444-112.2.93","DOIUrl":"https://doi.org/10.1640/0002-8444-112.2.93","url":null,"abstract":"Abstract. In southeast Florida an association between the shoestring fern (Vittaria lineata) and the pantropical moss Octoblepharum albidum is conspicuous on cabbage palm (Sabal palmetto) trunks. As determined from quadrat studies, for maturing sporophytes, but not for gametophytes and tiny sporophytes, the frequency of association exceeded that expected by chance. The positive association suggests the moss facilitates the fern sporophytes. Based on a literature review and on new observations, the structure of the moss and its intimate relationship with V. lineata roots is consistent with the moss serving as a water-retentive “mulch” for V. lineata. In different habitats V. lineata can associate alternatively with the moss Syrrhopodon incompletus, and it sometimes grows on decaying petiole-base remnants or in petiole-base axils with no moss association. The only vascular epiphyte competing with V. lineata locally is the fern Phlebodium aureum. The lengths of its leaf blades, but not those of V. lineata, correlate with the lengths of immediately adjacent S. palmetto petiole-stumps. Phlebodium aureum is prominent where the stumps are long, whereas V. lineata dominates in trunk regions having no or small petiole-stumps, where it usually associates with O. albidum.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43010566","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