Katya J. Romero‐Soler, I. Ramírez‐Morillo, G. Carnevali, C. Hornung‐Leoni, J. P. Pinzón, Rodrigo Duno de Stefano
Abstract A taxonomic revision of the Central American genus Mesoamerantha I. Ramírez & K. Romero is here presented. Each species entry includes full nomenclature, a morphological description, distributional and phenological data, a discussion of affinities, illustrations, and a conservation assessment following IUCN guidelines. In addition, epitypes are proposed for M. dichroantha (Donn. Sm.) I. Ramírez & K. Romero, a species endemic to Guatemala, and for M. malvernii (Gilmartin) I. Ramírez & K. Romero, a species restricted to Honduras and Nicaragua, the holotypes of which represent a single sex and are not sufficient for unambiguous identification. An artificial key is also included in order to identify live as well as herbarium specimens of all taxa.
{"title":"A Taxonomic Revision of the Central American Genus Mesoamerantha (Bromeliaceae: Hechtioideae)","authors":"Katya J. Romero‐Soler, I. Ramírez‐Morillo, G. Carnevali, C. Hornung‐Leoni, J. P. Pinzón, Rodrigo Duno de Stefano","doi":"10.3417/2021701","DOIUrl":"https://doi.org/10.3417/2021701","url":null,"abstract":"Abstract A taxonomic revision of the Central American genus Mesoamerantha I. Ramírez & K. Romero is here presented. Each species entry includes full nomenclature, a morphological description, distributional and phenological data, a discussion of affinities, illustrations, and a conservation assessment following IUCN guidelines. In addition, epitypes are proposed for M. dichroantha (Donn. Sm.) I. Ramírez & K. Romero, a species endemic to Guatemala, and for M. malvernii (Gilmartin) I. Ramírez & K. Romero, a species restricted to Honduras and Nicaragua, the holotypes of which represent a single sex and are not sufficient for unambiguous identification. An artificial key is also included in order to identify live as well as herbarium specimens of all taxa.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"107 1","pages":"64 - 86"},"PeriodicalIF":1.9,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48432337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The systematics of the Barbacenia Vand. Atlantic Forest Inselberg group (Barbacenia AFI), and the description of two new AFI species, B. amphirupia Mello-Silva & Andr. Cabral and B. maritima Mello-Silva & Andr. Cabral, are here presented. Lectotypes are designated for B. fannieae (N. L. Menezes) Mello-Silva, B. mantiqueirae Goethart & Henrard, B. purpurea Hook. var. minor Seub., B. squamata Herb., and Vellozia coerulescens Hort. Belg. ex Gumbl., and a neotype is designated for B. foliosa Goethart & Henrard. Barbacenia burlemarxii L. B. Sm. & Ayensu was placed into synonymy of B. pabstiana L. B. Sm. & Ayensu, B. caricina Goethart & Henrard of B. brevifolia Taub., B. gaveensis Goethart & Henrard, B. foliosa, B. purpurea var. minor, and B. seubertiana Goethart & Henrard under B. squamata, B. ionantha L. B. Sm. and B. monticola L. B. Sm. & Ayensu under B. irwiniana L. B. Sm., and V. coerulescens under B. purpurea. An identification key and morphological and anatomical descriptions for the species are presented, as well as comments on the affinities among the species, geographical distribution, and conservation status.
{"title":"Taxonomic Revision of Barbacenia (Velloziaceae) Atlantic Forest Inselberg Group, with two New Species","authors":"R. Mello-Silva, Andressa Cabral","doi":"10.3417/2022685","DOIUrl":"https://doi.org/10.3417/2022685","url":null,"abstract":"Abstract The systematics of the Barbacenia Vand. Atlantic Forest Inselberg group (Barbacenia AFI), and the description of two new AFI species, B. amphirupia Mello-Silva & Andr. Cabral and B. maritima Mello-Silva & Andr. Cabral, are here presented. Lectotypes are designated for B. fannieae (N. L. Menezes) Mello-Silva, B. mantiqueirae Goethart & Henrard, B. purpurea Hook. var. minor Seub., B. squamata Herb., and Vellozia coerulescens Hort. Belg. ex Gumbl., and a neotype is designated for B. foliosa Goethart & Henrard. Barbacenia burlemarxii L. B. Sm. & Ayensu was placed into synonymy of B. pabstiana L. B. Sm. & Ayensu, B. caricina Goethart & Henrard of B. brevifolia Taub., B. gaveensis Goethart & Henrard, B. foliosa, B. purpurea var. minor, and B. seubertiana Goethart & Henrard under B. squamata, B. ionantha L. B. Sm. and B. monticola L. B. Sm. & Ayensu under B. irwiniana L. B. Sm., and V. coerulescens under B. purpurea. An identification key and morphological and anatomical descriptions for the species are presented, as well as comments on the affinities among the species, geographical distribution, and conservation status.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"107 1","pages":"32 - 63"},"PeriodicalIF":1.9,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41973397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Chromosome numbers are reported for 53 individuals of 10 species of Solidago L. sect. Maritimae (Torr. & A. Gray) Semple & Beck from eastern Canada and the eastern United States: S. austrina Small, S. chrysopsis Small, S. gracillima Torr. & A. Gray, S. mexicana L., S. pulchra Small, S. sempervirens L., S. simulans Fernald, S. stricta Aiton, S. uliginosa Nutt., and S. virgata Michx. Identifications of nearly all vouchers for 262 previously published counts for the section were confirmed or revised following the treatments of the section by Semple et al. No counts have been reported for the Mexican species S. maya Semple and S. paniculata DC. and for S. uliginosa var. terra-novae (Torr. & A. Gray) Fernald from Newfoundland. Polyploids are documented in six of the 13 species: S. austrina, S. mexicana, S. pulchra, S. stricta, S. uliginosa, and S. virgata. In addition, we provide the first chromosome count for S. chrysopsis (2n = 18) from Florida. All 315 count reports from 231 locations were used to map the cytogeography of all species in the section.
{"title":"Cytogeography of Solidago sect. Maritimae (Asteraceae: Astereae)","authors":"J. C. Semple, R. Cook","doi":"10.3417/2022731","DOIUrl":"https://doi.org/10.3417/2022731","url":null,"abstract":"Abstract Chromosome numbers are reported for 53 individuals of 10 species of Solidago L. sect. Maritimae (Torr. & A. Gray) Semple & Beck from eastern Canada and the eastern United States: S. austrina Small, S. chrysopsis Small, S. gracillima Torr. & A. Gray, S. mexicana L., S. pulchra Small, S. sempervirens L., S. simulans Fernald, S. stricta Aiton, S. uliginosa Nutt., and S. virgata Michx. Identifications of nearly all vouchers for 262 previously published counts for the section were confirmed or revised following the treatments of the section by Semple et al. No counts have been reported for the Mexican species S. maya Semple and S. paniculata DC. and for S. uliginosa var. terra-novae (Torr. & A. Gray) Fernald from Newfoundland. Polyploids are documented in six of the 13 species: S. austrina, S. mexicana, S. pulchra, S. stricta, S. uliginosa, and S. virgata. In addition, we provide the first chromosome count for S. chrysopsis (2n = 18) from Florida. All 315 count reports from 231 locations were used to map the cytogeography of all species in the section.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"107 1","pages":"21 - 31"},"PeriodicalIF":1.9,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44246552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. C. Fernández-Concha, I. Ramírez‐Morillo, J. E. Pérez-Sarabia, J. Tapia-Muñoz, H. E. Medina, W. CETZAL-IX, S. Hernández-Aguilar, Lilia Lorena Can Itza, Néstor Eduardo Raigoza Flores, Rodrigo Duno de Stefano, G. Romero‐González
Abstract An assessment of the extinction risk of the endemic plants from the Yucatán Peninsula Biotic Province (YPBP) was performed based on distributional data (B criteria of the IUCN) using the GeoCAT tool. The YPBP is located in southeastern Mexico and comprises the Mexican states of Campeche, Quintana Roo, and Yucatán, and the northernmost portion of Belize (districts of Belize, Corozal, and Orange Walk), as well as a portion of northern Guatemala (most of the department of Petén). An analysis of the YPBP flora identified 167 endemic taxa, 154 of which grow in at least one of the three Mexican states (Campeche, Quintana Roo, and/or Yucatán), whereas another 13 occur exclusively in Belize and/or Guatemala. Eighty-five are in some category of risk (50.9%): 17 taxa (10.18%) are categorized as Critically Endangered (CR), 40 (23.95%) as Endangered (EN), and 28 (16.77%) as Vulnerable (VU). Eighty-one (48.5%) species are not threatened: 12 (7.19%) as Near Threatened (NT) and 69 (41.32%) as Least Concern. A single species (0.6%) is considered Data Deficient (DD). The greatest number of endemic species and endemic threatened species inhabit dry and subhumid forests, and some inhabit semi-evergreen forests. The habits of endemic species and threatened endemic species are diverse, but trees, grasses, and shrubs predominate. The official system of protected natural areas (PNA) does not guarantee the conservation of all endemic species in the region. Ninety-eight (58.68%) of the endemic taxa have more than one population (record) within a PNA.
{"title":"Assessing the Risk of Extinction of Vascular Plants Endemic to the Yucatán Peninsula Biotic Province by Means of Distributional Data","authors":"G. C. Fernández-Concha, I. Ramírez‐Morillo, J. E. Pérez-Sarabia, J. Tapia-Muñoz, H. E. Medina, W. CETZAL-IX, S. Hernández-Aguilar, Lilia Lorena Can Itza, Néstor Eduardo Raigoza Flores, Rodrigo Duno de Stefano, G. Romero‐González","doi":"10.3417/2021661","DOIUrl":"https://doi.org/10.3417/2021661","url":null,"abstract":"Abstract An assessment of the extinction risk of the endemic plants from the Yucatán Peninsula Biotic Province (YPBP) was performed based on distributional data (B criteria of the IUCN) using the GeoCAT tool. The YPBP is located in southeastern Mexico and comprises the Mexican states of Campeche, Quintana Roo, and Yucatán, and the northernmost portion of Belize (districts of Belize, Corozal, and Orange Walk), as well as a portion of northern Guatemala (most of the department of Petén). An analysis of the YPBP flora identified 167 endemic taxa, 154 of which grow in at least one of the three Mexican states (Campeche, Quintana Roo, and/or Yucatán), whereas another 13 occur exclusively in Belize and/or Guatemala. Eighty-five are in some category of risk (50.9%): 17 taxa (10.18%) are categorized as Critically Endangered (CR), 40 (23.95%) as Endangered (EN), and 28 (16.77%) as Vulnerable (VU). Eighty-one (48.5%) species are not threatened: 12 (7.19%) as Near Threatened (NT) and 69 (41.32%) as Least Concern. A single species (0.6%) is considered Data Deficient (DD). The greatest number of endemic species and endemic threatened species inhabit dry and subhumid forests, and some inhabit semi-evergreen forests. The habits of endemic species and threatened endemic species are diverse, but trees, grasses, and shrubs predominate. The official system of protected natural areas (PNA) does not guarantee the conservation of all endemic species in the region. Ninety-eight (58.68%) of the endemic taxa have more than one population (record) within a PNA.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"106 1","pages":"424 - 457"},"PeriodicalIF":1.9,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43403714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Ozobryum G. L. Merr., once synonymized with Molendoa Lindb., is recognized as a good genus of Pottiaceae based on evaluation of it as a distinctive dissilient genus. Populations from Mexico are described as a new species, O. mexicanum R. H. Zander. The species Anoectangium warburgii Crundw. & M. O. Hill is transferred to Ozobryum. The genus is synthetically evaluated as integral in respect to other genera of the Pleuroweisieae through combination of critical methods of probabilism, including scientific theory, Granger causation, and verificationism, and of evidentialism, including constructivism, likelihoodism, Bayesianism, and analytic methods of classical taxonomy.
{"title":"Synopsis of Ozobryum (Pottiaceae, Bryophyta), and Sequential Bayes Evaluation of Genus Integrity","authors":"R. Zander","doi":"10.3417/2021665","DOIUrl":"https://doi.org/10.3417/2021665","url":null,"abstract":"Abstract Ozobryum G. L. Merr., once synonymized with Molendoa Lindb., is recognized as a good genus of Pottiaceae based on evaluation of it as a distinctive dissilient genus. Populations from Mexico are described as a new species, O. mexicanum R. H. Zander. The species Anoectangium warburgii Crundw. & M. O. Hill is transferred to Ozobryum. The genus is synthetically evaluated as integral in respect to other genera of the Pleuroweisieae through combination of critical methods of probabilism, including scientific theory, Granger causation, and verificationism, and of evidentialism, including constructivism, likelihoodism, Bayesianism, and analytic methods of classical taxonomy.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"106 1","pages":"458 - 468"},"PeriodicalIF":1.9,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42456240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Carolina Galindo da Costa, W. Thomas, Artur Campos D. Maia, D. Navarro, P. Milet‐Pinheiro, I. Machado
Floral colors and odors are evolutionary strategies used by plants to attract pollinating animals and may be absent in mostly anemophilous groups, such as Cyperaceae. However, considering that insects are floral visitors of some Rhynchospora Vahl species, the objective of this study was to characterize the floral traits and pollination systems within this genus. We analyzed 16 Rhynchospora species with regard to flower morphology, colors of floral structures, floral scents, pollen vectors, and pollination systems. We verified factors that can favor abiotic or biotic pollination in a continuum of floral traits in Rhynchospora. The flower morphology of R. dissitispicula T. Koyama, with inconspicuous brown spikelets in open panicles, is interpreted as a complete adaptation to anemophily. Conspicuous floral traits in Rhynchospora were distinguished from the background by bees. Some species also emit floral volatiles, and we made the first record of floral scent chemistry within the genus. Most of the compounds emitted by these species are known as attractants to many floral-visiting insects. Bees, beetles, and flies visited species with conspicuous floral traits and contributed to fruit set. The investigated floral traits form a continuum across the different pollination systems in Rhynchospora, from anemophilous to ambophilous and then to entomophilous representatives.
{"title":"A Continuum of Conspicuousness, Floral Signals, and Pollination Systems in Rhynchospora (Cyperaceae): Evidence of Ambophily and Entomophily in a Mostly Anemophilous Family","authors":"Ana Carolina Galindo da Costa, W. Thomas, Artur Campos D. Maia, D. Navarro, P. Milet‐Pinheiro, I. Machado","doi":"10.3417/2021674","DOIUrl":"https://doi.org/10.3417/2021674","url":null,"abstract":"Floral colors and odors are evolutionary strategies used by plants to attract pollinating animals and may be absent in mostly anemophilous groups, such as Cyperaceae. However, considering that insects are floral visitors of some Rhynchospora Vahl species, the objective of this study was to characterize the floral traits and pollination systems within this genus. We analyzed 16 Rhynchospora species with regard to flower morphology, colors of floral structures, floral scents, pollen vectors, and pollination systems. We verified factors that can favor abiotic or biotic pollination in a continuum of floral traits in Rhynchospora. The flower morphology of R. dissitispicula T. Koyama, with inconspicuous brown spikelets in open panicles, is interpreted as a complete adaptation to anemophily. Conspicuous floral traits in Rhynchospora were distinguished from the background by bees. Some species also emit floral volatiles, and we made the first record of floral scent chemistry within the genus. Most of the compounds emitted by these species are known as attractants to many floral-visiting insects. Bees, beetles, and flies visited species with conspicuous floral traits and contributed to fruit set. The investigated floral traits form a continuum across the different pollination systems in Rhynchospora, from anemophilous to ambophilous and then to entomophilous representatives.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43145258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Walter H. Lewis: A Life Spent Pushing Back the Frontiers of Botany (1930–2020)","authors":"Charlotte M. Taylor, R. Gereau","doi":"10.3417/2021722","DOIUrl":"https://doi.org/10.3417/2021722","url":null,"abstract":"In memory of Dr. Walter H. Lewis","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"106 1","pages":"469 - 489"},"PeriodicalIF":1.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48327212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Verónica Ortiz, P. Moroni, Fabiana Mirra, Rosa María Villanueva Espinoza, N. O’Leary
Morphological boundaries between South American species of Euphrasia L. are controversial, rendering determination of specimens an arduous task. In this context, a comprehensive taxonomic revision of Euphrasia in South America is here provided for the first time. This study, based upon a classical morphological study of ca. 400 herbarium specimens, supports the recognition of eight species and one subspecies distributed in the Andean regions of Argentina, Bolivia, and Chile. From among native species, six belong to section Trifidae Benth. and one to the monotypic section Paradoxae Pugsley, endemic to Juan Fernández Islands; one adventive species, E. officinalis L., belongs to the section Euphrasia. The previously misunderstood presence of E. cockayniana Petrie is here untangled, and, consequently, the species is excluded from South America. A key to all Euphrasia taxa in South America, plus morphological descriptions, nomenclature items, geographical distribution and maps, habitat notes, illustrations, photographs, and discussion notes are included for the nine taxa. Eleven names are here synonymized, and lectotypes are designated for E. andicola Benth., E. debilis Wettst., E. flavicans Phil., E. intricata Phil., and E. philippii Wettst. Euphrasia andicola is reported for the first time for Argentina. This collaborative effort will represent a baseline for further investigations on Euphrasia in South America.
{"title":"Taxonomic Revision of Euphrasia (Orobanchaceae) in South America","authors":"Ana Verónica Ortiz, P. Moroni, Fabiana Mirra, Rosa María Villanueva Espinoza, N. O’Leary","doi":"10.3417/2021707","DOIUrl":"https://doi.org/10.3417/2021707","url":null,"abstract":"Morphological boundaries between South American species of Euphrasia L. are controversial, rendering determination of specimens an arduous task. In this context, a comprehensive taxonomic revision of Euphrasia in South America is here provided for the first time. This study, based upon a classical morphological study of ca. 400 herbarium specimens, supports the recognition of eight species and one subspecies distributed in the Andean regions of Argentina, Bolivia, and Chile. From among native species, six belong to section Trifidae Benth. and one to the monotypic section Paradoxae Pugsley, endemic to Juan Fernández Islands; one adventive species, E. officinalis L., belongs to the section Euphrasia. The previously misunderstood presence of E. cockayniana Petrie is here untangled, and, consequently, the species is excluded from South America. A key to all Euphrasia taxa in South America, plus morphological descriptions, nomenclature items, geographical distribution and maps, habitat notes, illustrations, photographs, and discussion notes are included for the nine taxa. Eleven names are here synonymized, and lectotypes are designated for E. andicola Benth., E. debilis Wettst., E. flavicans Phil., E. intricata Phil., and E. philippii Wettst. Euphrasia andicola is reported for the first time for Argentina. This collaborative effort will represent a baseline for further investigations on Euphrasia in South America.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"1 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41512919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The Neotropical genus Pentacalia Cass. (Compositae, Senecioneae) is distributed from southern Mexico to northwestern Argentina, plus two disjunct species that thrive in Brazil. Most species diversity occurs in the montane forests of Colombia, Ecuador, and Peru. It comprises scandent woody plants characterized by displaying alternate leaves (opposite in three species), involucres with supplementary bracts, usually yellow ray florets (when present), sagittate to caudate anther bases, and truncate to obtuse style branches with a crown of sweeping trichomes (sometimes with a tuft of longer trichomes, but not strictly penicillate). The Bolivian species were revised for the first time by Cabrera (1985), who treated the group under Senecio L. sect. Streptothamni Greenm. Because of the subsequent addition of new species and the need of taxonomic arrangements, an updated synopsis of the genus recognizing 18 species is presented. The names P. brittoniana (Hieron.) Cuatrec. and P. miguelii (Cuatrec.) Cuatrec. are synonymized with P. psidiifolia (Rusby) Cuatrec., as well as P. inquisiviensis H. Rob. & Cuatrec. with P. cardenasii (Cuatrec.) Cuatrec. and P. sailapatensis (Cuatrec.) Cuatrec. with P. urubambensis (Cabrera) Cuatrec. Seven names are lectotypified and an epitype is designated for the name P. zongoensis (Cabrera) J. Calvo. The new species P. viburnifolia J. Calvo & A. Fuentes is described. Revised nomenclature, succinct descriptions, taxonomic discussions, lists of specimens examined, and distribution maps are provided for all accepted species, in addition to an identification key. Pictures of living plants are also presented for eight species.
{"title":"Synopsis of the Genus Pentacalia (Compositae, Senecioneae) in Bolivia","authors":"J. Calvo","doi":"10.3417/2021649","DOIUrl":"https://doi.org/10.3417/2021649","url":null,"abstract":"Abstract The Neotropical genus Pentacalia Cass. (Compositae, Senecioneae) is distributed from southern Mexico to northwestern Argentina, plus two disjunct species that thrive in Brazil. Most species diversity occurs in the montane forests of Colombia, Ecuador, and Peru. It comprises scandent woody plants characterized by displaying alternate leaves (opposite in three species), involucres with supplementary bracts, usually yellow ray florets (when present), sagittate to caudate anther bases, and truncate to obtuse style branches with a crown of sweeping trichomes (sometimes with a tuft of longer trichomes, but not strictly penicillate). The Bolivian species were revised for the first time by Cabrera (1985), who treated the group under Senecio L. sect. Streptothamni Greenm. Because of the subsequent addition of new species and the need of taxonomic arrangements, an updated synopsis of the genus recognizing 18 species is presented. The names P. brittoniana (Hieron.) Cuatrec. and P. miguelii (Cuatrec.) Cuatrec. are synonymized with P. psidiifolia (Rusby) Cuatrec., as well as P. inquisiviensis H. Rob. & Cuatrec. with P. cardenasii (Cuatrec.) Cuatrec. and P. sailapatensis (Cuatrec.) Cuatrec. with P. urubambensis (Cabrera) Cuatrec. Seven names are lectotypified and an epitype is designated for the name P. zongoensis (Cabrera) J. Calvo. The new species P. viburnifolia J. Calvo & A. Fuentes is described. Revised nomenclature, succinct descriptions, taxonomic discussions, lists of specimens examined, and distribution maps are provided for all accepted species, in addition to an identification key. Pictures of living plants are also presented for eight species.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":"106 1","pages":"340 - 371"},"PeriodicalIF":1.9,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46708927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crenea Aubl. (Lythraceae) is a ditypic genus of subshrubs occurring in mangrove vegetation on the coasts of northern South America. Phylogenetic analyses based on morphology have offered unresolved and conflicting phylogenetic positions for the genus in the family. This study presents the first molecular sequences for Crenea, from nrITS, rbcL, trnL, trnL-F, and matK regions. Molecular phylogenetic analyses find full support for Crenea within Ammannia L., a relationship not previously recognized. Ammannia is a globally distributed genus of terrestrial to amphibious herbs mostly occurring in freshwater marshes and wetlands. It was recently reconfigured based on phylogenetic evidence to include the genera Nesaea Comm. ex Kunth and Hionanthera A. Fern. & Diniz. The transfer of Crenea to Ammannia further extends the morphological, ecological, and biogeographical diversity of Ammannia and provides the final evidence defining Ammannia as a monophyletic lineage of the Lythraceae. A revised circumscription of Ammannia s.l. adds several new morphological character states and the first species in the genus restricted to mangrove vegetation. Two changes in taxonomic status are made: Ammannia maritima (Aubl.) S. A. Graham, P. W. Inglis, & T. B. Cavalc., comb. nov., and Ammannia patentinervius (Koehne) S. A. Graham, P. W. Inglis, & T. B. Cavalc., comb. nov. The new combinations are described, a list of exsiccatae examined is provided, and the effects of the reconfiguration to the morphology and biogeography of the genus are detailed.
Crenea Aubl。是一种双典型亚灌木属，生长在南美洲北部海岸的红树林植被中。基于形态学的系统发育分析为该属在科中的系统发育位置提供了未解决的和相互冲突的系统发育位置。本研究首次获得了Crenea的nrITS、rbcL、trnL、trnL- f和matK区域的分子序列。分子系统发育分析发现在Ammannia L.中完全支持Crenea，这种关系以前没有被认识到。羊草属是一种全球分布的陆生到两栖草本植物属，主要生长在淡水沼泽和湿地。根据系统发育的证据，它最近被重新配置为包括Nesaea com . ex Kunth和Hionanthera A. Fern属。想一想&迪尼斯那样不知满足、。羊草向羊草的转移进一步扩展了羊草的形态、生态和生物地理多样性，并为羊草科的单系谱系提供了最终证据。修订了Ammannia s.l.的界域，增加了几个新的形态特征状态，并在属中增加了仅限于红树林植被的第一个种。在分类学地位上有两个变化:阿曼尼亚(Ammannia marima)S. A.格雷厄姆，P. W.英格利斯，T. B.卡瓦尔克。,梳子。2008年11月，和Ammannia专利访谈(Koehne) S. A. Graham, P. W. Inglis， & T. B. Cavalc。,梳子。11 .对新的组合进行了描述，提供了一份检查过的残基清单，并详细介绍了这种重新配置对该属的形态和生物地理的影响。
{"title":"The Phylogenetic Position of Crenea in the Lythraceae Based on Molecular Evidence, and the Transfer of Its Two Species to Ammannia","authors":"S. Graham, P. Inglis, T. B. Cavalcanti","doi":"10.3417/2021629","DOIUrl":"https://doi.org/10.3417/2021629","url":null,"abstract":"Crenea Aubl. (Lythraceae) is a ditypic genus of subshrubs occurring in mangrove vegetation on the coasts of northern South America. Phylogenetic analyses based on morphology have offered unresolved and conflicting phylogenetic positions for the genus in the family. This study presents the first molecular sequences for Crenea, from nrITS, rbcL, trnL, trnL-F, and matK regions. Molecular phylogenetic analyses find full support for Crenea within Ammannia L., a relationship not previously recognized. Ammannia is a globally distributed genus of terrestrial to amphibious herbs mostly occurring in freshwater marshes and wetlands. It was recently reconfigured based on phylogenetic evidence to include the genera Nesaea Comm. ex Kunth and Hionanthera A. Fern. & Diniz. The transfer of Crenea to Ammannia further extends the morphological, ecological, and biogeographical diversity of Ammannia and provides the final evidence defining Ammannia as a monophyletic lineage of the Lythraceae. A revised circumscription of Ammannia s.l. adds several new morphological character states and the first species in the genus restricted to mangrove vegetation. Two changes in taxonomic status are made: Ammannia maritima (Aubl.) S. A. Graham, P. W. Inglis, & T. B. Cavalc., comb. nov., and Ammannia patentinervius (Koehne) S. A. Graham, P. W. Inglis, & T. B. Cavalc., comb. nov. The new combinations are described, a list of exsiccatae examined is provided, and the effects of the reconfiguration to the morphology and biogeography of the genus are detailed.","PeriodicalId":55510,"journal":{"name":"Annals of the Missouri Botanical Garden","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44757909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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