A new species of Melanoleuca subg. Urticocystis with urticiform cheilocystidia is proposed from Lal suhanra National Park, Bahawalpur district, Punjab, Pakistan. The identification is based on morphological characters and molecular phylogenetic analyses using ITS sequences. A comparison of morphological features and molecular phylogenetic data with the known taxa of the subgenus confirms the identity of the species as a new taxon. Detailed descriptions, line drawings and phylogenetic results are presented.
拟从巴基斯坦旁遮普省巴哈瓦尔布尔地区的拉尔苏汉拉国家公园（Lal suhanra National Park）发现一种具有荨麻状螯囊的 Melanoleuca 亚种 Urticocystis。鉴定基于形态特征和使用 ITS 序列进行的分子系统发育分析。形态特征和分子系统发育数据与亚属已知类群的比较证实了该物种是一个新类群。本文介绍了详细描述、线图和系统发育结果。
{"title":"Melanoleuca lalsuhanraensis, a new species from Lal Suhanra National Park, Punjab, Pakistan","authors":"Humaira Elahi, Abdul Rehman Niazi","doi":"10.1111/njb.04245","DOIUrl":"https://doi.org/10.1111/njb.04245","url":null,"abstract":"A new species of <jats:italic>Melanoleuca</jats:italic> subg. <jats:italic>Urticocystis</jats:italic> with urticiform cheilocystidia is proposed from Lal suhanra National Park, Bahawalpur district, Punjab, Pakistan. The identification is based on morphological characters and molecular phylogenetic analyses using ITS sequences. A comparison of morphological features and molecular phylogenetic data with the known taxa of the subgenus confirms the identity of the species as a new taxon. Detailed descriptions, line drawings and phylogenetic results are presented.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"46 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140589240","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}
Rafael Felipe de Almeida, Higor Antonio‐Domingues, Francisco Maiato P. Gonçalves, David J. Goyder
Triaspis hypericoides currently comprises three accepted subspecies endemic to woodland savannas of southern continental Africa. After an unusual population belonging to this complex was collected in southwestern Angola, we re‐evaluated the classification of this group. This study was based on the analysis of type specimens, protologues, field photographs and herbarium sheets of all subspecies within T. hypericoides. We reinstate T. canescens, T. hypericoides and T. nelsonii based on differences in leaf, flower and fruit traits. Additionally, the Angolan population is proposed here as a new species of Triapis endemic to the dry miombo woodlands of Bicuar National Park, Huíla Province, southwestern Angola. Triaspis bicuarensis sp. nov. is easily distinguished from T. nelsonii by its alternate (versus opposite) leaves, ovate to widely ovate (versus widely ovate to very widely ovate) leaf laminas, rounded (versus sagittate) leaf base, flat (versus undulate) margins, sparsely white‐tomentose (versus glabrous to glabrescent) abaxial leaf surface, petiole 4–8 mm long (versus 2–3 mm long), compound inflorescences in thyrses (versus corymbs) and bracteoles inserted below apex of peduncles (versus in the middle of peduncles). An identification key to all species belonging to this species complex is presented alongside a complete morphological description for the new species, photographic plates and comments on the distribution, ecology, palynology and taxonomy. These results underline the need for continued revisions of the taxonomy of the neglected African genera of Malpighiaceae.
Triaspis hypericoides目前包括三个公认的亚种，是非洲大陆南部林地稀树草原的特有物种。在安哥拉西南部采集到属于该复合种群的一个不寻常种群后，我们重新评估了该种群的分类。这项研究基于对 T. hypericoides 中所有亚种的模式标本、原型、野外照片和标本馆页的分析。根据叶、花和果实特征的差异，我们恢复了 T. canescens、T. hypericoides 和 T. nelsonii 的地位。此外，我们还建议将安哥拉种群作为安哥拉西南部威拉省比夸尔国家公园（Bicuar National Park）干燥的miombo林地中特有的Triapis新种。Triaspis bicuarensis sp.nelsonii 的区别：互生（对生）叶，卵形到宽卵形（宽卵形到宽卵形）叶片，圆形（箭头形）叶基部，平（波状）叶缘、叶柄长 4-8 毫米（对长 2-3 毫米），复花序为聚伞圆锥花序（对伞房花序），小苞片着生于花序梗先端下方（对花序梗中部）。本报告提供了属于该物种群的所有物种的识别钥匙，同时还提供了该新物种的完整形态描述、照片图版以及关于其分布、生态学、古植物学和分类学的评论。这些成果强调了继续修订被忽视的非洲马鞭草属分类学的必要性。
{"title":"A new Angolan species from the Triaspis hypericoides complex (Malpighiaceae) based on macromorphology and palynology","authors":"Rafael Felipe de Almeida, Higor Antonio‐Domingues, Francisco Maiato P. Gonçalves, David J. Goyder","doi":"10.1111/njb.04336","DOIUrl":"https://doi.org/10.1111/njb.04336","url":null,"abstract":"<jats:italic>Triaspis hypericoides</jats:italic> currently comprises three accepted subspecies endemic to woodland savannas of southern continental Africa. After an unusual population belonging to this complex was collected in southwestern Angola, we re‐evaluated the classification of this group. This study was based on the analysis of type specimens, protologues, field photographs and herbarium sheets of all subspecies within <jats:italic>T. hypericoides</jats:italic>. We reinstate <jats:italic>T. canescens</jats:italic>, <jats:italic>T. hypericoides</jats:italic> and <jats:italic>T. nelsonii</jats:italic> based on differences in leaf, flower and fruit traits. Additionally, the Angolan population is proposed here as a new species of <jats:italic>Triapis</jats:italic> endemic to the dry miombo woodlands of Bicuar National Park, Huíla Province, southwestern Angola. <jats:italic>Triaspis bicuarensis</jats:italic> sp. nov. is easily distinguished from <jats:italic>T. nelsonii</jats:italic> by its alternate (versus opposite) leaves, ovate to widely ovate (versus widely ovate to very widely ovate) leaf laminas, rounded (versus sagittate) leaf base, flat (versus undulate) margins, sparsely white‐tomentose (versus glabrous to glabrescent) abaxial leaf surface, petiole 4–8 mm long (versus 2–3 mm long), compound inflorescences in thyrses (versus corymbs) and bracteoles inserted below apex of peduncles (versus in the middle of peduncles). An identification key to all species belonging to this species complex is presented alongside a complete morphological description for the new species, photographic plates and comments on the distribution, ecology, palynology and taxonomy. These results underline the need for continued revisions of the taxonomy of the neglected African genera of Malpighiaceae.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"15 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140324976","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}
{"title":"Introduction – plant‐ and vegetation‐based indicators for ecosystem restoration in a European context","authors":"Line Johansen, Marianne Evju","doi":"10.1111/njb.04414","DOIUrl":"https://doi.org/10.1111/njb.04414","url":null,"abstract":"","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"25 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201766","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}
Alireza Dolatyari, Majid Tolyat Abolhasani, Fatemeh Ardalani, Jānis Rukšāns
The taxonomic classification of the genus Crocus has undergone substantial revisions over the past half‐century. Likewise, over the last two decades, the number of known species in Iran has tripled with the discovery of 16 additional species. Despite these noteworthy recent findings, there is a lack of an updated taxonomic revision that encompasses all these newcomers. This revision of the genus in Iran is based on comprehensive morphological examinations conducted on fresh plant material collected in the field, cultivated plants, herbarium specimens, and an extensive literature review. Presently, 24 species are recognized in Iran. They are classified into two sections: Crocus and Nudiscapus. Notably, 18 species (75%) are endemic to Iran, with 14 among them being steno‐endemics, the five remaining species are subendemic elements whose distribution is limited to Iran and the adjacent countries. An identification key to all 24 recognized species is presented, accompanied by illustrations, detailed descriptions, distribution maps and information on the conservation status of each species. According to the IUCN criteria, the conservation status of all species, excluding C. caspius, C. damascenus,C. haussknechtii and C. michelsonii is at an alarming level. This revision aims to resolve ambiguities in the Iranian Crocus taxonomy, and offers the opportunity to collectively examine all previously described species in one comprehensive contribution.
{"title":"A taxonomic revision of the genus Crocus (Iridaceae) in Iran","authors":"Alireza Dolatyari, Majid Tolyat Abolhasani, Fatemeh Ardalani, Jānis Rukšāns","doi":"10.1111/njb.04270","DOIUrl":"https://doi.org/10.1111/njb.04270","url":null,"abstract":"The taxonomic classification of the genus <jats:italic>Crocus</jats:italic> has undergone substantial revisions over the past half‐century. Likewise, over the last two decades, the number of known species in Iran has tripled with the discovery of 16 additional species. Despite these noteworthy recent findings, there is a lack of an updated taxonomic revision that encompasses all these newcomers. This revision of the genus in Iran is based on comprehensive morphological examinations conducted on fresh plant material collected in the field, cultivated plants, herbarium specimens, and an extensive literature review. Presently, 24 species are recognized in Iran. They are classified into two sections: <jats:italic>Crocus</jats:italic> and <jats:italic>Nudiscapus</jats:italic>. Notably, 18 species (75%) are endemic to Iran, with 14 among them being steno‐endemics, the five remaining species are subendemic elements whose distribution is limited to Iran and the adjacent countries. An identification key to all 24 recognized species is presented, accompanied by illustrations, detailed descriptions, distribution maps and information on the conservation status of each species. According to the IUCN criteria, the conservation status of all species, excluding <jats:italic>C. caspius</jats:italic>, <jats:italic>C. damascenus,</jats:italic> <jats:italic>C. haussknechtii</jats:italic> and <jats:italic>C. michelsonii</jats:italic> is at an alarming level. This revision aims to resolve ambiguities in the Iranian <jats:italic>Crocus</jats:italic> taxonomy, and offers the opportunity to collectively examine all previously described species in one comprehensive contribution.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"22 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201844","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}
Based on extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In total, 31 names in the genera Alectra, Boschniakia, Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified and type references are provided for 46 names. All types are illustrated by scanned images. The following new names are proposed due to rank changes: Orobanche amoena var. dzejveri, O. amoena var. regeliana, Orobanche camptolepis f. sideana, Orobanche lutea var. hians, Phelipanche arenaria var. sareptana, Phelipanche caesia var. acuminata, Phelipanche caucasica, Phelipanche lavandulacea var. serratocalyx, Phelipanche pulchella var. bungeana, Phelipanche purpurea var. hirsutaand Phelipanche purpurea var. iberica. The following names are synonymized: Orobanche arenaria f. personata, Orobanche borkhausenii, Orobanche caesia f. tomentosa, Orobanche caryophyllacea f. besseri, Orobanche cernua f. subgrandis, Orobanche cumana f. helianthi, Orobanche eriophora, Orobanche glaucantha, Orobanche heyniae, Orobanche psilostemon, Orobanche sideritidis and Phelypaea helenae.
根据对各标本馆标本的广泛研究，为许多全寄生的大戟科类群指定了讲座模式。共为 Alectra、Boschniakia、Cistanche、Orobanche、Phelipanche 和 Phelypaea 属中的 31 个品名指定了模式标本，并为 46 个品名提供了模式参考文献。所有类型都有扫描图像。由于等级变化，提出了以下新名称：dzejveri, O. amoena var. regeliana, Orobanche camptolepis f. sideana, Orobanche lutea var. hians, Phelipanche arenaria var.bungeana, Phelipanche purpurea var.以下名称为同义词：Orobanche arenaria f. personata, Orobanche borkhausenii, Orobanche caesia f. tomentosa, Orobanche caryophyllacea f. besseri, Orobanche cernua f. subgrandis, Orobanche pulchella var.subgrandis, Orobanche cumana f. helianthi, Orobanche eriophora, Orobanche glaucantha, Orobanche heyniae, Orobanche psilostemon, Orobanche sideritidis and Phelypaea helenae.
{"title":"Lectotypifications and taxonomic changes in Alectra, Boschniakia, Cistanche, Orobanche, Phelipanche and Phelypaea (all Orobanchaceae)","authors":"Holger Uhlich, Stefan Rätzel","doi":"10.1111/njb.04155","DOIUrl":"https://doi.org/10.1111/njb.04155","url":null,"abstract":"Based on extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In total, 31 names in the genera <i>Alectra</i>, <i>Boschniakia</i>, <i>Cistanche</i>, <i>Orobanche</i>, <i>Phelipanche</i> and <i>Phelypaea</i> are lectotypified and type references are provided for 46 names. All types are illustrated by scanned images. The following new names are proposed due to rank changes: <i>Orobanche amoena</i> var. <i>dzejveri</i>, <i>O. amoena</i> var. <i>regeliana</i>, <i>Orobanche camptolepis</i> f. <i>sideana</i>, <i>Orobanche lutea</i> var. <i>hians</i>, <i>Phelipanche arenaria</i> var. <i>sareptana</i>, <i>Phelipanche caesia</i> var. <i>acuminata</i>, <i>Phelipanche caucasica</i>, <i>Phelipanche lavandulacea</i> var. <i>serratocalyx</i>, <i>Phelipanche pulchella</i> var. <i>bungeana</i>, <i>Phelipanche purpurea</i> var. <i>hirsuta</i> <i>and Phelipanche purpurea</i> var. <i>iberica</i>. The following names are synonymized: <i>Orobanche arenaria</i> f. <i>personata</i>, <i>Orobanche borkhausenii</i>, <i>Orobanche caesia</i> f. <i>tomentosa</i>, <i>Orobanche caryophyllacea</i> f. <i>besseri</i>, <i>Orobanche cernua</i> f. <i>subgrandis</i>, <i>Orobanche cumana</i> f. <i>helianthi</i>, <i>Orobanche eriophora</i>, <i>Orobanche glaucantha</i>, <i>Orobanche heyniae</i>, <i>Orobanche psilostemon</i>, <i>Orobanche sideritidis</i> and <i>Phelypaea helenae</i>.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"24 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140172313","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}
A new species of Maranta from the Brazilian Atlantic Forest is described. The new species is most similar to Maranta ruiziana, from which it differs mainly in its bambusoid habit, non starch-storing rhizome, homotropic leaves, with blade entirely glabrous on both surfaces and leaf margins entire, florescence components with numerous cymules, sepals longer than the corolla tube, and spheroidal fruit. The new species also presents morphological characters seen in Maranta tuberculata, from which is easily distinguished by its fruits. I characterize the new species by its external morphology, provide a distribution map, and perform a preliminary conservation assessment based on the IUCN criteria.
{"title":"Maranta bambusa: an endangered new species of Maranta (Marantaceae)","authors":"Fernanda R. M. Fraga","doi":"10.1111/njb.04289","DOIUrl":"https://doi.org/10.1111/njb.04289","url":null,"abstract":"A new species of Maranta from the Brazilian Atlantic Forest is described. The new species is most similar to <i>Maranta ruiziana</i>, from which it differs mainly in its bambusoid habit, non starch-storing rhizome, homotropic leaves, with blade entirely glabrous on both surfaces and leaf margins entire, florescence components with numerous cymules, sepals longer than the corolla tube, and spheroidal fruit. The new species also presents morphological characters seen in <i>Maranta tuberculata</i>, from which is easily distinguished by its fruits. I characterize the new species by its external morphology, provide a distribution map, and perform a preliminary conservation assessment based on the IUCN criteria.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"31 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140172312","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}
Pooja Nitin Saraf, Jyoti Srivastava, François Munoz, Bipin Charles, Pujarini Samal, Mohammad Firoze Quamar
The present study utilized an ensemble modelling approach to predict the distribution of Diospyros melanoxylon under present, past (last glacial maximum (LGM), ~ 22 000 years BP, middle Holocene (MH) ~ 6000 years BP) and future climate change scenarios (RCP 2.6 and 8.5 for 2050s and 2070s). The annual mean temperature, mean temperature of the wettest quarter and annual precipitations were the most critical parameters that chiefly influence the distribution of D. melanoxylon. The ensemble model rendered high accuracy with AUC = 0.93, TSS = 0.74 and Kappa = 0.71. Past projections of D. melanoxylon indicated a widespread distribution during LGM and MH suggesting its adaptability to semi-dry as well as warm and humid climate, respectively. Presence of fossil pollen evidence of D. melanoxylon in the suitable habitats derived through past projections in this study complements the model results and marks occurrences of the species during LGM and MH. By 2050s and 2070s (RCP 8.5), there would be a decline in the distribution by only 0.4% (13 622 km2) and 0.2% (6842 km2) of the extremely suitable habitats, respectively. The main factor leading to reduced habitat suitability is the anticipated rise in temperature and variations in seasonal precipitation patterns. Our findings, help in identifying the parts of the country which would be severely affected by future climate change scenarios and plan conservation strategies for this commercially important species to facilitate its growth in suitable habitats which are likely to sustain under future climatic conditions.
{"title":"Ecological niche modelling to project past, current and future distributional shift of black ebony tree Diospyros melanoxylon Roxb. in India","authors":"Pooja Nitin Saraf, Jyoti Srivastava, François Munoz, Bipin Charles, Pujarini Samal, Mohammad Firoze Quamar","doi":"10.1111/njb.04266","DOIUrl":"https://doi.org/10.1111/njb.04266","url":null,"abstract":"The present study utilized an ensemble modelling approach to predict the distribution of <i>Diospyros melanoxylon</i> under present, past (last glacial maximum (LGM), ~ 22 000 years BP, middle Holocene (MH) ~ 6000 years BP) and future climate change scenarios (RCP 2.6 and 8.5 for 2050s and 2070s). The annual mean temperature, mean temperature of the wettest quarter and annual precipitations were the most critical parameters that chiefly influence the distribution of <i>D. melanoxylon</i>. The ensemble model rendered high accuracy with AUC = 0.93, TSS = 0.74 and Kappa = 0.71. Past projections of <i>D. melanoxylon</i> indicated a widespread distribution during LGM and MH suggesting its adaptability to semi-dry as well as warm and humid climate, respectively. Presence of fossil pollen evidence of <i>D. melanoxylon</i> in the suitable habitats derived through past projections in this study complements the model results and marks occurrences of the species during LGM and MH. By 2050s and 2070s (RCP 8.5), there would be a decline in the distribution by only 0.4% (13 622 km<sup>2</sup>) and 0.2% (6842 km<sup>2</sup>) of the extremely suitable habitats, respectively. The main factor leading to reduced habitat suitability is the anticipated rise in temperature and variations in seasonal precipitation patterns. Our findings, help in identifying the parts of the country which would be severely affected by future climate change scenarios and plan conservation strategies for this commercially important species to facilitate its growth in suitable habitats which are likely to sustain under future climatic conditions.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"23 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140172325","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}
Gróa Valgerður Ingimundardóttir, Torbjörn Tyler, Nils Cronberg, Mikael Hedrén, Stefan Andersson
Scorzoneroides autumnalis is a highly polymorphic perennial with several described infraspecific taxa, largely differing in involucre colour and indumentum intensity. Here, we examine the role of ecotypic divergence and phenotypic plasticity in shaping large‐scale geographical variation in these characters. We collected phenotypic data from herbarium specimens and garden‐grown plants of S. autumnalis, representing several habitats throughout Scandinavia and Iceland, and subjected progenies from controlled crosses within a subset of the common garden material to different temperature regimes to assess patterns of phenotypic plasticity. Our results strongly suggest that colour and indumentum of involucral bracts, as well as the size of capitula (measured by ligule length), are environmentally plastic and much affected by temperature. Reduced temperature resulted in significantly larger capitula, with both thicker and darker involucre indumentum. Since dark colouration, dense indumentum and large floral structures have been shown to facilitate heat retention and insect visitation in other plant species growing in cold climate, we hypothesize that plants of S. autumnalis benefit from possessing these features under cool conditions, and that much of the geographical variation in capitulum characters reflects adaptive phenotypic plasticity rather than ecotypic divergence. For this reason, we deem these characters to have a low taxonomic value for distinguishing infraspecific taxa within S. autumnalis.
{"title":"Dressed for the occasion! Ecotypic divergence, phenotypic plasticity and taxonomic value of capitulum characters of Scorzoneroides autumnalis (Asteraceae)","authors":"Gróa Valgerður Ingimundardóttir, Torbjörn Tyler, Nils Cronberg, Mikael Hedrén, Stefan Andersson","doi":"10.1111/njb.04211","DOIUrl":"https://doi.org/10.1111/njb.04211","url":null,"abstract":"<jats:italic>Scorzoneroides autumnalis</jats:italic> is a highly polymorphic perennial with several described infraspecific taxa, largely differing in involucre colour and indumentum intensity. Here, we examine the role of ecotypic divergence and phenotypic plasticity in shaping large‐scale geographical variation in these characters. We collected phenotypic data from herbarium specimens and garden‐grown plants of <jats:italic>S. autumnalis</jats:italic>, representing several habitats throughout Scandinavia and Iceland, and subjected progenies from controlled crosses within a subset of the common garden material to different temperature regimes to assess patterns of phenotypic plasticity. Our results strongly suggest that colour and indumentum of involucral bracts, as well as the size of capitula (measured by ligule length), are environmentally plastic and much affected by temperature. Reduced temperature resulted in significantly larger capitula, with both thicker and darker involucre indumentum. Since dark colouration, dense indumentum and large floral structures have been shown to facilitate heat retention and insect visitation in other plant species growing in cold climate, we hypothesize that plants of <jats:italic>S. autumnalis</jats:italic> benefit from possessing these features under cool conditions, and that much of the geographical variation in capitulum characters reflects adaptive phenotypic plasticity rather than ecotypic divergence. For this reason, we deem these characters to have a low taxonomic value for distinguishing infraspecific taxa within <jats:italic>S. autumnalis</jats:italic>.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"21 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128681","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}
Viktor O. Nachychko, Ivan M. Danylyk, Clemens Pachschwöll, Andrei Stoie
A taxonomic and nomenclatural account on taxa of Iridaceae proposed by Ferdinand Schur, a famous investigator of the flora of Transylvania (present‐day Romania), is presented. Types are designated for 12 names, namely lectotypes for Crocus banaticus var. niveus, C. exiguus, Iris fieberi var. monantha, I. × binata, I. × cucullata, I. pseudocyperus, I. transsilvanica, I. sibirica var. salina, and neotypes for C. banaticus var. concolor, C. banaticus var. pictus, C. banaticus var. versicolor and I. pumila var. albiflora. Based on a broad examination of Schur's original and authentic material, the taxonomic application of these names, as well as of his invalidly published and unpublished names (appearing only on herbarium labels), are clarified. It is proposed to treat I. fieberi var. monantha as a taxonomic synonym of I. aphylla, I. pumila var. albiflora and I. transsilvanica as synonyms of I. pumila, and I. sibirica var. salina as a synonym of I. spuria. The names I. × binata and I. × cucullata are accepted for the hybrids I. aphylla × pumila and I. × germanica × pallida, respectively. The treatment of I. pseudocyperus as a distinct subspecies within I. graminea is supported. All names validly published by Schur in Crocus are treated as synonyms of C. heuffelianus s.l. until an adequate taxonomic revision covering the southern Carpathian allotetraploid C. cf. heuffelianus (2n = 18) is implemented. If this polyploid deserves the rank of a distinct species, the name C. exiguus, which seems to be the earliest validly published, should be accepted for this taxon.
本文介绍了著名的特兰西瓦尼亚（今罗马尼亚）植物区系研究者费迪南德-舒尔（Ferdinand Schur）提出的鸢尾科类群的分类和命名方法。niveus、C. exiguus、Iris fieberi var. monantha、I. × binata、I. × cucullata、I. pseudocyperus、I. transsilvanica、I. sibirica var. salina，以及 C. banaticus var.在对舒尔的原始和真实材料进行广泛研究的基础上，澄清了这些名称的分类学应用，以及他无效公布和未公布的名称（仅出现在标本馆标签上）。fieberi var. monantha 作为 I. aphylla 的分类学异名，I. pumila var.杂交种 I. aphylla × pumila 和 I. × germanica × pallida 分别被命名为 I. × binata 和 I. × cucullata。支持将 I. pseudocyperus 作为 I. graminea 中的一个独立亚种。heuffelianus s.l.的异名，直到对喀尔巴阡山南部的异源四倍体 C. cf. heuffelianus（2n = 18）进行适当的分类学修订。exiguus 这个名称，它似乎是最早发表的有效名称。
{"title":"Ferdinand Schur's taxa of Iridaceae, their revision and effective typification of names","authors":"Viktor O. Nachychko, Ivan M. Danylyk, Clemens Pachschwöll, Andrei Stoie","doi":"10.1111/njb.04249","DOIUrl":"https://doi.org/10.1111/njb.04249","url":null,"abstract":"A taxonomic and nomenclatural account on taxa of Iridaceae proposed by Ferdinand Schur, a famous investigator of the flora of Transylvania (present‐day Romania), is presented. Types are designated for 12 names, namely lectotypes for <jats:italic>Crocus banaticus</jats:italic> var. <jats:italic>niveus</jats:italic>, <jats:italic>C. exiguus</jats:italic>, <jats:italic>Iris fieberi</jats:italic> var. <jats:italic>monantha</jats:italic>, <jats:italic>I.</jats:italic> × <jats:italic>binata</jats:italic>, <jats:italic>I.</jats:italic> × <jats:italic>cucullata</jats:italic>, <jats:italic>I. pseudocyperus</jats:italic>, <jats:italic>I. transsilvanica</jats:italic>, <jats:italic>I. sibirica</jats:italic> var. <jats:italic>salina</jats:italic>, and neotypes for <jats:italic>C. banaticus</jats:italic> var. <jats:italic>concolor</jats:italic>, <jats:italic>C. banaticus</jats:italic> var. <jats:italic>pictus</jats:italic>, <jats:italic>C. banaticus</jats:italic> var. <jats:italic>versicolor</jats:italic> and <jats:italic>I. pumila</jats:italic> var. <jats:italic>albiflora</jats:italic>. Based on a broad examination of Schur's original and authentic material, the taxonomic application of these names, as well as of his invalidly published and unpublished names (appearing only on herbarium labels), are clarified. It is proposed to treat <jats:italic>I. fieberi</jats:italic> var. <jats:italic>monantha</jats:italic> as a taxonomic synonym of <jats:italic>I. aphylla</jats:italic>, <jats:italic>I. pumila</jats:italic> var. <jats:italic>albiflora</jats:italic> and <jats:italic>I. transsilvanica</jats:italic> as synonyms of <jats:italic>I. pumila</jats:italic>, and <jats:italic>I. sibirica</jats:italic> var. <jats:italic>salina</jats:italic> as a synonym of <jats:italic>I. spuria</jats:italic>. The names <jats:italic>I.</jats:italic> × <jats:italic>binata</jats:italic> and <jats:italic>I.</jats:italic> × <jats:italic>cucullata</jats:italic> are accepted for the hybrids <jats:italic>I. aphylla</jats:italic> × <jats:italic>pumila</jats:italic> and <jats:italic>I.</jats:italic> × <jats:italic>germanica</jats:italic> × <jats:italic>pallida</jats:italic>, respectively. The treatment of <jats:italic>I. pseudocyperus</jats:italic> as a distinct subspecies within <jats:italic>I. graminea</jats:italic> is supported. All names validly published by Schur in <jats:italic>Crocus</jats:italic> are treated as synonyms of <jats:italic>C. heuffelianus</jats:italic> s.l. until an adequate taxonomic revision covering the southern Carpathian allotetraploid <jats:italic>C.</jats:italic> cf. <jats:italic>heuffelianus</jats:italic> (2<jats:italic>n</jats:italic> = 18) is implemented. If this polyploid deserves the rank of a distinct species, the name <jats:italic>C. exiguus</jats:italic>, which seems to be the earliest validly published, should be accepted for this taxon.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"22 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128822","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}
Leonid V. Averyanov, Khang Sinh Nguyen, Hans‐Juergen Tillich, Tatiana V. Maisak, Valeria V. Shvanova
This paper continues the publication of Aspidistra species newly discovered in the flora of Vietnam. It includes an illustrated description of A. pentagona, found in the northern part of the country. Detailed analytical color illustrations, data on morphology and ecology, phenology, tentative relationships, distribution and expected conservation status are provided for the discovered species.
本文继续发表越南植物区系中新发现的 Aspidistra 物种。其中包括对发现于越南北部地区的 A. pentagona 的图解描述。本文提供了新发现物种的详细彩色分析插图、形态学和生态学数据、物候学、暂定关系、分布和预期保护状况。
{"title":"Aspidistra pentagona (Asparagaceae, Convallarioideae), a new species from northern Vietnam","authors":"Leonid V. Averyanov, Khang Sinh Nguyen, Hans‐Juergen Tillich, Tatiana V. Maisak, Valeria V. Shvanova","doi":"10.1111/njb.04094","DOIUrl":"https://doi.org/10.1111/njb.04094","url":null,"abstract":"This paper continues the publication of <jats:italic>Aspidistra</jats:italic> species newly discovered in the flora of Vietnam. It includes an illustrated description of <jats:italic>A. pentagona</jats:italic>, found in the northern part of the country. Detailed analytical color illustrations, data on morphology and ecology, phenology, tentative relationships, distribution and expected conservation status are provided for the discovered species.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"7 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128523","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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