The hypothesis regarding the origin of Narcissus ×weickertii through hybridization of its putative parent species, N. papyraceus and N. gaditanus, is investigated in populations from the southwestern of the Iberian Peninsula. Multivariate analyses of quantitative morphological characters in both vegetative and flower structures, coupled with a descriptive analysis of qualitative traits, reveal that N. ×weickertii displays an intermediate morphology between its putative parents. Several anatomical traits of the leaf and scape provide additional support for its hybrid nature. Karyotype analyses show that N. ×weickertii has a 2n=21 karyotype, which falls between those of the putative parent species, with several chromosomes showing an inability to pair. Fluorescence in situ hybridization procedures, encompassing both FISH (targeting NOR regions) and GISH (using total DNA from the putative parents), yield conclusive evidence regarding the hybrid nature of N. ×weickertii and confirm the hypothesis about the identity of their putative parent species. Furthermore, phylogenetic relationships suggest that N. gaditanus likely served as the maternal parent, while N. papyraceus acted as the paternal species, maintaining the hybrid species the style polymorphism of their parent species. The degree of viability observed in the N. ×weickertii pollen grains might indicate that it could bear some possibilities of sexual reproduction beyond the typical vegetative propagation of many described Narcissus hybrid species.
通过伊比利亚半岛西南部的种群研究了关于水仙 ×weickertii 起源于其假定亲本物种 N. papyraceus 和 N. gaditanus 杂交的假说。对植株和花朵结构的定量形态特征进行了多元分析，并对定性特征进行了描述性分析，结果表明 N. ×weickertii的形态介于其假定亲本之间。叶片和花葶的一些解剖学特征为其杂交性质提供了更多支持。核型分析表明，N. ×weickertii的核型为2n=21，介于假定亲本之间，其中有几条染色体无法配对。荧光原位杂交程序包括 FISH（以 NOR 区域为目标）和 GISH（使用来自假定亲本的总 DNA），这些程序为 N. ×weickertii 的杂交性质提供了确凿证据，并证实了关于其假定亲本身份的假设。此外，系统发育关系表明，N. gaditanus 可能是母本，而 N. papyraceus 则是父本，从而使杂交种保持了其亲本的风格多态性。在 N. ×weickertii花粉粒中观察到的活力程度可能表明，除了许多已描述过的水仙杂交种的典型无性繁殖外，它还可能进行有性生殖。
{"title":"Evidence on the origin of Narcissus ×weickertii (Amaryllidaceae), an endemic daffodil of the SW Iberian Peninsula","authors":"Zoila Díaz Lifante, María Ángeles DECENA RODRÍGUEZ, Cristina ANDRÉS CAMACHO, Adoración CABRERA CABALLERO, Enrique SÁNCHEZ GULLÓN, Rocío SANTOS GALLY, Juan Arroyo","doi":"10.11646/phytotaxa.658.1.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.658.1.2","url":null,"abstract":"The hypothesis regarding the origin of Narcissus ×weickertii through hybridization of its putative parent species, N. papyraceus and N. gaditanus, is investigated in populations from the southwestern of the Iberian Peninsula. Multivariate analyses of quantitative morphological characters in both vegetative and flower structures, coupled with a descriptive analysis of qualitative traits, reveal that N. ×weickertii displays an intermediate morphology between its putative parents. Several anatomical traits of the leaf and scape provide additional support for its hybrid nature. Karyotype analyses show that N. ×weickertii has a 2n=21 karyotype, which falls between those of the putative parent species, with several chromosomes showing an inability to pair. Fluorescence in situ hybridization procedures, encompassing both FISH (targeting NOR regions) and GISH (using total DNA from the putative parents), yield conclusive evidence regarding the hybrid nature of N. ×weickertii and confirm the hypothesis about the identity of their putative parent species. Furthermore, phylogenetic relationships suggest that N. gaditanus likely served as the maternal parent, while N. papyraceus acted as the paternal species, maintaining the hybrid species the style polymorphism of their parent species. The degree of viability observed in the N. ×weickertii pollen grains might indicate that it could bear some possibilities of sexual reproduction beyond the typical vegetative propagation of many described Narcissus hybrid species.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"27 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-02DOI: 10.11646/phytotaxa.658.1.4
S. M. B. Olimpos, D. Penneys, Daryl S. Salas, F. Coritico, Victor B. Amoroso, Peter W. Fritsch
Saurauia decolorata from the Mt. Pantaron Range, Bukidnon and Mt. Balatukan Natural Park, Misamis Oriental, Mindanao Island, the Philippines, is illustrated and described as a new species. It closely resembles S. avellana and S. elegans in having branchlets, petioles, and abaxial surfaces of the leaves covered with tomentum and scales, densely clustered flowers, longitudinal anther dehiscence, and 3–4 styles. However, S. decolorata is distinguished from these species by its prominent rusty-colored tomentum and scales on branchlets and abaxial leaf surfaces, cordate leaf bases, crenate margin, 16–21 pairs of lateral veins, fascicled-cymose inflorescences that are both axillary and ramiflorous, and sparsely scaly pinkish green outer sepals. This discovery further emphasizes the unique biodiversity of the forests of the Pantaron Range and Mt. Balatukan which urgently need legislative protection and enhanced protected area management plans, respectively.
Saurauia decolorata 是菲律宾棉兰老岛东米萨米斯省潘塔隆山山脉和巴拉图坎山自然公园的一个新种。它与 S. avellana 和 S. elegans 非常相似，小枝、叶柄和叶背面都覆盖着绒毛和鳞片，花密集簇生，花药纵向开裂，花柱 3-4 枚。然而，S. decolorata 与这些物种的区别在于其小枝和叶背面有明显的锈色绒毛和鳞片，叶基部心形，边缘具圆齿，有 16-21 对侧脉，簇生聚伞状花序，既有腋生又有斜生，外萼片上有稀疏的粉绿色鳞片。这一发现进一步凸显了潘塔隆山脉和巴拉图坎山森林独特的生物多样性，这两座山脉分别迫切需要立法保护和加强保护区管理计划。
{"title":"Saurauia decolorata (Actinidiaceae), a new species from Mindanao, the Philippines","authors":"S. M. B. Olimpos, D. Penneys, Daryl S. Salas, F. Coritico, Victor B. Amoroso, Peter W. Fritsch","doi":"10.11646/phytotaxa.658.1.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.658.1.4","url":null,"abstract":"Saurauia decolorata from the Mt. Pantaron Range, Bukidnon and Mt. Balatukan Natural Park, Misamis Oriental, Mindanao Island, the Philippines, is illustrated and described as a new species. It closely resembles S. avellana and S. elegans in having branchlets, petioles, and abaxial surfaces of the leaves covered with tomentum and scales, densely clustered flowers, longitudinal anther dehiscence, and 3–4 styles. However, S. decolorata is distinguished from these species by its prominent rusty-colored tomentum and scales on branchlets and abaxial leaf surfaces, cordate leaf bases, crenate margin, 16–21 pairs of lateral veins, fascicled-cymose inflorescences that are both axillary and ramiflorous, and sparsely scaly pinkish green outer sepals. This discovery further emphasizes the unique biodiversity of the forests of the Pantaron Range and Mt. Balatukan which urgently need legislative protection and enhanced protected area management plans, respectively.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"15 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141688070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.4
Zaman Khan, Aiman Izhar, Abdul Nasir Khalid
A new species, Entoloma khushabense, is described and illustrated here based on morphological and molecular evidence from Pakistan. The key features of the new species that make it distinct from closely related taxa include the presence of conspicuous cheilocystidia and caulocystidia, and hyphae having constrictions in the walls. Morphological data and phylogenetic analyses based on internal transcribed spacer (ITS) and large sub-unit (LSU) regions of nuclear rDNA support that the present species differs from previously known members of Entoloma.
{"title":"A new omphalinoid species, Entoloma khushabense (Entolomataceae, Basidiomycota) from Punjab, Pakistan","authors":"Zaman Khan, Aiman Izhar, Abdul Nasir Khalid","doi":"10.11646/phytotaxa.653.1.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.4","url":null,"abstract":"A new species, Entoloma khushabense, is described and illustrated here based on morphological and molecular evidence from Pakistan. The key features of the new species that make it distinct from closely related taxa include the presence of conspicuous cheilocystidia and caulocystidia, and hyphae having constrictions in the walls. Morphological data and phylogenetic analyses based on internal transcribed spacer (ITS) and large sub-unit (LSU) regions of nuclear rDNA support that the present species differs from previously known members of Entoloma.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"10 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141349157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.2
Cui-Ling Gong, Hai-Xia Wu, Jinchun Li, Jiafeng Song
Phyllosticta is an important genus of pathogenic fungi with worldwide distribution. Phyllosticta species also occur as endophytes and saprobes on various plant hosts. Multi-gene phylogenetic analysis based on sequence data of ITS, LSU, TEF1 and morphological evidence supported the introduction of two new species, which were isolated from dead leaves in China. Phylogenetically, the new species, P. savannaensis and P. ovalina, formed two well-separated lineages in the Phyllosticta capitalensis and Phyllosticta cruenta species complexes, respectively. P. savannaensis is closely related to P. capitalensis, but formed a separate branch (BS= 100%/BYPP= 1.0), while P. ovalina and P. hubeiensis clustered together with high support (BS= 100%/BYPP= 1.0). Both new species exhibited the typical characteristics of the genus Phyllosticta but could be distinguished from closely related species. P. savannaensis can be differentiated from the sexual stage of other Phyllosticta species by the length to width ratio of the ascospores and shape of appendages. The ascospores of P. ovalina are oval, which distinguish it from other species of Phyllosticta.
{"title":"Morphological and multi-gene phylogenetic analyses of two new species of Phyllosticta (Phyllostictaceae, Botryosphaeriales) from Southwestern China","authors":"Cui-Ling Gong, Hai-Xia Wu, Jinchun Li, Jiafeng Song","doi":"10.11646/phytotaxa.653.1.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.2","url":null,"abstract":"Phyllosticta is an important genus of pathogenic fungi with worldwide distribution. Phyllosticta species also occur as endophytes and saprobes on various plant hosts. Multi-gene phylogenetic analysis based on sequence data of ITS, LSU, TEF1 and morphological evidence supported the introduction of two new species, which were isolated from dead leaves in China. Phylogenetically, the new species, P. savannaensis and P. ovalina, formed two well-separated lineages in the Phyllosticta capitalensis and Phyllosticta cruenta species complexes, respectively. P. savannaensis is closely related to P. capitalensis, but formed a separate branch (BS= 100%/BYPP= 1.0), while P. ovalina and P. hubeiensis clustered together with high support (BS= 100%/BYPP= 1.0). Both new species exhibited the typical characteristics of the genus Phyllosticta but could be distinguished from closely related species. P. savannaensis can be differentiated from the sexual stage of other Phyllosticta species by the length to width ratio of the ascospores and shape of appendages. The ascospores of P. ovalina are oval, which distinguish it from other species of Phyllosticta.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"33 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141345450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.7
F. R. OLIVEIRA-DA-SILVA, S. Gradstein
We describe three new species of Radula subg. Volutoradula from above 3000 m in the tropical Andes: R. ilkiuborgesiae from Colombia (Dept. Santander), and R. longicarinata and R. magna from Bolivia (Dept. La Paz). The new species stand out by the unusual shape of their lobules. Full descriptions, illustrations as well as comments on the morphology, taxonomy, ecology and distribution of the new species are provided. The discovery of the new species adds three further endemic taxa to the rich bryophyte flora of the tropical Andes, the richest area for Radulaceae in the Neotropics.
我们描述了热带安第斯山脉海拔 3000 米以上地区的三个 Radula 亚种 Volutoradula 新种：哥伦比亚（桑坦德省）的 R. ilkiuborgesiae，以及玻利维亚（拉巴斯省）的 R. longicarinata 和 R. magna。新种的突出特点是其小叶的形状不同寻常。报告对新物种的形态、分类、生态学和分布进行了全面描述，并配有插图和评论。新种的发现为热带安第斯山脉丰富的红豆杉植物区系又增添了三个特有分类群，该地区是新热带地区红豆杉科植物最丰富的地区。
{"title":"High liverwort diversity in the tropical Andes as evidenced by the discovery of three new species of Radula (Radulaceae)","authors":"F. R. OLIVEIRA-DA-SILVA, S. Gradstein","doi":"10.11646/phytotaxa.653.1.7","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.7","url":null,"abstract":"We describe three new species of Radula subg. Volutoradula from above 3000 m in the tropical Andes: R. ilkiuborgesiae from Colombia (Dept. Santander), and R. longicarinata and R. magna from Bolivia (Dept. La Paz). The new species stand out by the unusual shape of their lobules. Full descriptions, illustrations as well as comments on the morphology, taxonomy, ecology and distribution of the new species are provided. The discovery of the new species adds three further endemic taxa to the rich bryophyte flora of the tropical Andes, the richest area for Radulaceae in the Neotropics.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"33 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141350031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.8
S. Gorjón, A. Greslebin
N/A
不适用
{"title":"Erratum: Gorjón, S.P. & Greslebin, A.G. (2024) Stereodiscus pseudotrivialis (Russulales, Basidiomycota), a new species from the Patagonian Andes of Argentina. Phytotaxa 636 (2): 152–162.","authors":"S. Gorjón, A. Greslebin","doi":"10.11646/phytotaxa.653.1.8","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.8","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"54 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.3
Deniz Aygören Uluer, Barış Özüdoğru
Matthiola montana and M. anchoniifolia are endemic to Türkiye and can be distinguished from each other by morphological features including siliques, leaves, petals, and hairs. Although these two taxa have traditionally been treated as separate species in all taxeonomic accounts, field and herbarium studies together with findings in the literature suggest that they should be considered at the subspecies level at the very least due to transitions in the aforementioned characters. To test this hypothesis, we evaluated all available herbarium specimens and specimens from field collections, conducting numerical and phylogenetic analyses based on the ITS region of the nuclear DNA. Our analyses, including the unweighted pair group method with arithmetic mean (UPGMA) and principal coordinate analysis (PCoA) as well as phylogenetic methods, consistently indicated that the two species did not form separate clusters. Therefore, our careful examination of the material, along with morphological and phylogenetic analyses, strongly supports the conclusion that M. anchoniifolia is not distinct from M. montana and should be a synonym of the latter.
Matthiola montana 和 M. anchoniifolia 是图尔基耶的特有种，可以通过包括附属物、叶片、花瓣和毛发在内的形态特征将它们区分开来。尽管这两个类群在所有分类学描述中一直被视为独立的种，但野外和标本馆研究以及文献中的发现表明，由于上述特征的过渡，它们至少应被视为亚种。为了验证这一假设，我们评估了所有可用的标本馆标本和野外采集的标本，并根据核 DNA 的 ITS 区域进行了数值和系统发育分析。我们的分析，包括算术平均的非加权成对分组法（UPGMA）和主坐标分析（PCoA）以及系统发育方法，都一致表明这两个物种没有形成独立的聚类。因此，我们对材料进行的仔细检查以及形态学和系统发生学分析，有力地支持了 M. anchoniifolia 与 M. montana 没有区别，应为后者的异名这一结论。
{"title":"A combined phylogenetic and numerical taxonomic study of Matthiola montana and M. anchoniifolia (Brassicaceae)","authors":"Deniz Aygören Uluer, Barış Özüdoğru","doi":"10.11646/phytotaxa.653.1.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.3","url":null,"abstract":"Matthiola montana and M. anchoniifolia are endemic to Türkiye and can be distinguished from each other by morphological features including siliques, leaves, petals, and hairs. Although these two taxa have traditionally been treated as separate species in all taxeonomic accounts, field and herbarium studies together with findings in the literature suggest that they should be considered at the subspecies level at the very least due to transitions in the aforementioned characters. To test this hypothesis, we evaluated all available herbarium specimens and specimens from field collections, conducting numerical and phylogenetic analyses based on the ITS region of the nuclear DNA. Our analyses, including the unweighted pair group method with arithmetic mean (UPGMA) and principal coordinate analysis (PCoA) as well as phylogenetic methods, consistently indicated that the two species did not form separate clusters. Therefore, our careful examination of the material, along with morphological and phylogenetic analyses, strongly supports the conclusion that M. anchoniifolia is not distinct from M. montana and should be a synonym of the latter.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141349208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.5
R. Piwowarczyk, Óscar SÁNCHEZ PEDRAJA, A. Fateryga, S. Svirin, Ramazan A. Murtazaliev
A new, probably endemic species, Orobanche dagestanica is described from Dagestan in Russia (the Greater Caucasus). The species grows in alpine shale scree slopes, and is a parasite of the roots of species from the genus Lophiolepis (Asteraceae). Based on morphological and phylogenetic data, the newly-described species belongs to Orobanche subsect. Curvatae, and specifically to O. ser. Krylowianae, however it is distinct from all other taxa in this group. A detailed description, diagnosis, illustrations, a comparison with related species, as well as phylogenetic analysis are provided.
本报告描述了俄罗斯（大高加索地区）达吉斯坦的一种可能是当地特有的新物种 Orobanche dagestanica。该物种生长在高山页岩碎石斜坡上，寄生在 Lophiolepis 属（菊科）物种的根部。根据形态学和系统发生学数据，新描述的物种属于 Orobanche subsect.Curvatae，特别是 O. ser.Krylowianae，但它与该组中的所有其他类群都不同。本文提供了详细描述、诊断、插图、与相关物种的比较以及系统发育分析。
{"title":"Orobanche dagestanica (Orobanchaceae): a new species from the Greater Caucasus","authors":"R. Piwowarczyk, Óscar SÁNCHEZ PEDRAJA, A. Fateryga, S. Svirin, Ramazan A. Murtazaliev","doi":"10.11646/phytotaxa.653.1.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.5","url":null,"abstract":"A new, probably endemic species, Orobanche dagestanica is described from Dagestan in Russia (the Greater Caucasus). The species grows in alpine shale scree slopes, and is a parasite of the roots of species from the genus Lophiolepis (Asteraceae). Based on morphological and phylogenetic data, the newly-described species belongs to Orobanche subsect. Curvatae, and specifically to O. ser. Krylowianae, however it is distinct from all other taxa in this group. A detailed description, diagnosis, illustrations, a comparison with related species, as well as phylogenetic analysis are provided.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"50 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-13DOI: 10.11646/phytotaxa.653.1.1
Thomas Croze, Luis CARLÓN RUIZ, J. Tison, Henri Michaud, James Molina, Gonzalo MORENO MORAL
A new species of Phelipanche has been discovered in various steep places in southern France at meso- and supra-mediterranean levels. It is always parasitic on Brassicaceae, almost exclusively on Hesperis laciniata, a plant that had never been reported as host for any Orobanchaceae previously. The new species, named Phelipanche cingularum for its rocky ledge (cingula) habitat, is described and illustrated. Diagnostic characters against up to 16 presumably related species are given. We also present the results of molecular analyses well-supporting its independence. The distribution and the unusual ecology of the plant are considered and illustrated, and its conservation status is evaluated.
{"title":"Phelipanche cingularum (Orobanchaceae), a new species from southern France","authors":"Thomas Croze, Luis CARLÓN RUIZ, J. Tison, Henri Michaud, James Molina, Gonzalo MORENO MORAL","doi":"10.11646/phytotaxa.653.1.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.653.1.1","url":null,"abstract":"A new species of Phelipanche has been discovered in various steep places in southern France at meso- and supra-mediterranean levels. It is always parasitic on Brassicaceae, almost exclusively on Hesperis laciniata, a plant that had never been reported as host for any Orobanchaceae previously. The new species, named Phelipanche cingularum for its rocky ledge (cingula) habitat, is described and illustrated. Diagnostic characters against up to 16 presumably related species are given. We also present the results of molecular analyses well-supporting its independence. The distribution and the unusual ecology of the plant are considered and illustrated, and its conservation status is evaluated.","PeriodicalId":506155,"journal":{"name":"Phytotaxa","volume":"48 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141345161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-12DOI: 10.11646/phytotaxa.652.4.4
J. Kociolek, Megan Greenwood, Dillan Rogers, Sarah E. Hamsher, Scott Miller, Jingchun Li, A. C. G. Chang, Jonathan C. Taylor
Denticula costata Hustedt was originally described from fossil material from Sumatra and later assigned to the genus Tetralunata. Although Tetralunata was thought to be endemic to Indonesia, D. costata has been reported from wetwalls from South Africa. This disparity in locality prompted us to investigate the D. costata in South Africa further. D. costata (now T. costata) specimens and the species reported from South Africa were different in size, shape, and structure of the raphe system. These differences, as well as comparisons to other Denticula species, allowed us to determine that the South African specimens have not been described previously. Valve ultrastructure, including the canal raphe, areolae with volate occlusions, and presence/structure of the septa suggest this new species belongs to the genus Tetralunata. This is the first report of Tetralunata from outside of Indonesia. Herein, we describe Tetraluanata schoemanii sp. nov. and its systematic placement close to, but separate from, Epithemia. This first report of Tetralunata from outside of Indonesia, increases our understanding of the genus range and displays a unique biogeographical pattern that warrants further investigation in the future.
Denticula costata Hustedt最初是根据苏门答腊岛的化石材料描述的，后来被归入Tetralunata属。虽然 Tetralunata 被认为是印度尼西亚的特有种，但据报道，D. costata 出现在南非的湿壁上。地点上的差异促使我们进一步调查南非的 D. costata。d.costata（现为 T. costata）标本和南非报道的物种在大小、形状和剑突系统结构上都有所不同。这些差异，以及与其他 Denticula 种类的比较，使我们能够确定南非的标本以前未被描述过。瓣膜的超微结构，包括管状剑突、具有涡状咬合的窠，以及隔膜的存在/结构，都表明该新物种属于 Tetralunata 属。这是印度尼西亚以外地区首次报道 Tetralunata。在此，我们描述了 Tetraluanata schoemanii sp.这是首次报道印度尼西亚以外的 Tetralunata，增加了我们对该属分布范围的了解，并展示了一种独特的生物地理模式，值得在未来进一步研究。
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