Pub Date : 2021-06-07DOI: 10.1640/0002-8444-111.2.110
Jack T. Tessier
Abstract. Wintergreen ferns keep their leaves for an entire year before replacing them with new leaves in the spring. The overwintering leaves of Dryopteris intermedia provide carbon to the new leaves, and if these old leaves cannot become prostrate before winter via the hinge that develops at the base of the petiole, they are frost damaged and broken, which may affect the development of the new leaves in the subsequent year. I compared the vernal development of new leaves in D. intermedia between plants whose old leaves were intact and those whose petioles had been experimentally broken in the fall to determine the importance of the softening of the petiole-base in old leaves to the development of new leaves. Compared to the control, plants whose old leaves had broken petioles had a one-week delay in the development of their new leaves. This delay demonstrates that the evolutionary development of the petiole hinge may have been critical to the functional benefit associated with new leaf development in the wintergreen leaf habit in ferns.
{"title":"New Leaves of Dryopteris intermedia Develop More Slowly When the Petioles of Overwintering Leaves are Broken","authors":"Jack T. Tessier","doi":"10.1640/0002-8444-111.2.110","DOIUrl":"https://doi.org/10.1640/0002-8444-111.2.110","url":null,"abstract":"Abstract. Wintergreen ferns keep their leaves for an entire year before replacing them with new leaves in the spring. The overwintering leaves of Dryopteris intermedia provide carbon to the new leaves, and if these old leaves cannot become prostrate before winter via the hinge that develops at the base of the petiole, they are frost damaged and broken, which may affect the development of the new leaves in the subsequent year. I compared the vernal development of new leaves in D. intermedia between plants whose old leaves were intact and those whose petioles had been experimentally broken in the fall to determine the importance of the softening of the petiole-base in old leaves to the development of new leaves. Compared to the control, plants whose old leaves had broken petioles had a one-week delay in the development of their new leaves. This delay demonstrates that the evolutionary development of the petiole hinge may have been critical to the functional benefit associated with new leaf development in the wintergreen leaf habit in ferns.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"110 - 116"},"PeriodicalIF":0.8,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41737881","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.1
C. Haufler
{"title":"The American Fern Journal: After 110 Years, a Look Back","authors":"C. Haufler","doi":"10.1640/0002-8444-111.1.1","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.1","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"1 - 5"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49359964","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.35
Andreza S. Oliveira, P. Schwartsburd
Abstract. Two new species of Doryopteris from Brazil are described and illustrated: Doryopteris spiritu-sanctensis, a monomorphic species endemic to low and middle elevation coastal forests in Espírito Santo, and Doryopteris alata, a small dimorphic species endemic to high elevation, rocky fields within the savannas (cerrados) of Goiás.
{"title":"Two New Species of Doryopteris (Pteridaceae) from Brazil","authors":"Andreza S. Oliveira, P. Schwartsburd","doi":"10.1640/0002-8444-111.1.35","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.35","url":null,"abstract":"Abstract. Two new species of Doryopteris from Brazil are described and illustrated: Doryopteris spiritu-sanctensis, a monomorphic species endemic to low and middle elevation coastal forests in Espírito Santo, and Doryopteris alata, a small dimorphic species endemic to high elevation, rocky fields within the savannas (cerrados) of Goiás.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"35 - 42"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48513507","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.57
Sonia Molino, A. Seral, R. Vázquez, M. Vicent
{"title":"Obituary: José María Gabriel y Galán Moris (1968 - 2020)","authors":"Sonia Molino, A. Seral, R. Vázquez, M. Vicent","doi":"10.1640/0002-8444-111.1.57","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.57","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"57 - 61"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43311889","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.46
Leticia Pacheco, Itzel Sugei Escareño Mendoza, L. Cornejo, Samuel Márquez Bautista, Sara L. Camargo R., A. S. Morales
{"title":"New Fern and Lycophyte Records from the States of Oaxaca, Zacatecas, Puebla, and San Luis Potosí, Mexico","authors":"Leticia Pacheco, Itzel Sugei Escareño Mendoza, L. Cornejo, Samuel Márquez Bautista, Sara L. Camargo R., A. S. Morales","doi":"10.1640/0002-8444-111.1.46","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.46","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"46 - 50"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41499808","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.24
B. J. Hoshizaki, D. Yansura
Abstract. The Platycerium plants circulating amongst hobbyists and growers under the common name Platycerium ‘Mount Lewis' is the same plant as the cultivar known as Platycerium ‘Venose Frond’, or, as it was later called, Platycerium willinckii var. venosum. This plant also shares the trait of raised major veins with P. bifurcatum var. lanciferum, described in 1915. Morphological and molecular comparisons of this plant were made with members of the P. bifurcatum complex, particularly with P. bifurcatum and P. willinckii, to determine its true identity. We conclude that Platycerium ‘Mount Lewis’ is a variant of P. bifurcatum.
摘要在业余爱好者和种植者之间流传的Platycerium植物通常被称为“Mount Lewis”，与栽培的Platycerium“Venose front”相同，或者后来被称为Platycerium willinckii var. venosum。这种植物也与1915年描述的双叉植物变种lanciferum具有凸起的主脉特征。对该植物进行了形态和分子的比较，特别是与双歧P. bifurcatum和P. willinckii进行了比较，以确定其真正的身份。我们得出结论，Platycerium ' Mount Lewis '是P. bifurcatum的一个变种。
{"title":"The Platycerium Variant from Mount Lewis, Australia","authors":"B. J. Hoshizaki, D. Yansura","doi":"10.1640/0002-8444-111.1.24","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.24","url":null,"abstract":"Abstract. The Platycerium plants circulating amongst hobbyists and growers under the common name Platycerium ‘Mount Lewis' is the same plant as the cultivar known as Platycerium ‘Venose Frond’, or, as it was later called, Platycerium willinckii var. venosum. This plant also shares the trait of raised major veins with P. bifurcatum var. lanciferum, described in 1915. Morphological and molecular comparisons of this plant were made with members of the P. bifurcatum complex, particularly with P. bifurcatum and P. willinckii, to determine its true identity. We conclude that Platycerium ‘Mount Lewis’ is a variant of P. bifurcatum.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"117 8","pages":"24 - 34"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41247939","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.43
C. Araya, M. J. Montañola, M. Castro
{"title":"Phenological Stages During In Vitro Culture of Microsorum scolopendria (Burm.f) Copel. from Easter Island","authors":"C. Araya, M. J. Montañola, M. Castro","doi":"10.1640/0002-8444-111.1.43","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.43","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"43 - 45"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46346240","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.51
S. Molino, L. G. Quintanilla, J. M. Gabriel y Galán, R. Vázquez, J. Ramos
{"title":"High Phenotypic Variation of Struthiopteris spicant (Blechnaceae) at the Edge of Its Range","authors":"S. Molino, L. G. Quintanilla, J. M. Gabriel y Galán, R. Vázquez, J. Ramos","doi":"10.1640/0002-8444-111.1.51","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.51","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"51 - 56"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43072244","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 : 2021-03-04DOI: 10.1640/0002-8444-111.1.6
Kamlesh Kumar Bhakuni, S. Joshi, O. Anderson, R. Punetha
Abstract. This study was carried out in the Gori Valley catchment of Uttarakhand, Western Himalaya, to document more fully the distribution and ecology of ferns and lycophytes at a montane site divided into 7 elevation sampling zones from 1,800–4,000 m (subtemperate to alpine) across a distance of approximately 30 km. A total of 16 families, 33 genera, and 92 species were found. Species richness, total species density ha–1, diversity, and Pielou's species evenness per elevation zone (m) were calculated for each zone. The data were used to evaluate three hypotheses addressing changes in density and species distribution in relation to the biogeographic and climatic conditions across the seven elevation sampling zones. Total density of ferns and lycophytes tended to decrease from Zone 1 toward Zone 7; although Zones 1-3 (sub-temperate) had clearly higher mean densities than those in Zones 5-7 (alpine). The highest density was found in Zone 1 (Lilam 1,800 m) and lowest density was found in Zone 6 (Burfu 3,450 m). After finding a significant difference among all mean densities for each elevation zone (p < 0.001), using a non-parametric Welch's ANOVA, a Games-Howell test for pairwise comparisons of the means showed that each of the mean densities for species in Zones 1 to 3 was significantly different from each of the species densities in Zones 5 to 7 (p < 0.05). The mean densities for Zone 4 were not significantly different from any of the other zonal mean densities (i.e., 1–3 and 5–7), suggesting that Zone 4 is a transitional zone between two end member Zones (1–3 and 5–7).
{"title":"Ferns and Lycophytes of Gori Valley, Western Himalaya, Uttarakhand: A Case Study","authors":"Kamlesh Kumar Bhakuni, S. Joshi, O. Anderson, R. Punetha","doi":"10.1640/0002-8444-111.1.6","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.6","url":null,"abstract":"Abstract. This study was carried out in the Gori Valley catchment of Uttarakhand, Western Himalaya, to document more fully the distribution and ecology of ferns and lycophytes at a montane site divided into 7 elevation sampling zones from 1,800–4,000 m (subtemperate to alpine) across a distance of approximately 30 km. A total of 16 families, 33 genera, and 92 species were found. Species richness, total species density ha–1, diversity, and Pielou's species evenness per elevation zone (m) were calculated for each zone. The data were used to evaluate three hypotheses addressing changes in density and species distribution in relation to the biogeographic and climatic conditions across the seven elevation sampling zones. Total density of ferns and lycophytes tended to decrease from Zone 1 toward Zone 7; although Zones 1-3 (sub-temperate) had clearly higher mean densities than those in Zones 5-7 (alpine). The highest density was found in Zone 1 (Lilam 1,800 m) and lowest density was found in Zone 6 (Burfu 3,450 m). After finding a significant difference among all mean densities for each elevation zone (p < 0.001), using a non-parametric Welch's ANOVA, a Games-Howell test for pairwise comparisons of the means showed that each of the mean densities for species in Zones 1 to 3 was significantly different from each of the species densities in Zones 5 to 7 (p < 0.05). The mean densities for Zone 4 were not significantly different from any of the other zonal mean densities (i.e., 1–3 and 5–7), suggesting that Zone 4 is a transitional zone between two end member Zones (1–3 and 5–7).","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"111 1","pages":"6 - 23"},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49361221","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 : 2020-12-30DOI: 10.1640/0002-8444-110.4.145
W. Testo
{"title":"Celebrating David Barrington's Contributions to Fern and Lycophyte Research: Introduction to an American Fern Journal Special Issue","authors":"W. Testo","doi":"10.1640/0002-8444-110.4.145","DOIUrl":"https://doi.org/10.1640/0002-8444-110.4.145","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":"110 1","pages":"145 - 150"},"PeriodicalIF":0.8,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44625515","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：