Pedro Henrique Cardoso, Diego Rafael Gonzaga, Marcelo Trovó
{"title":"Stachytarpheta meninii (Verbenaceae), a new micro-endemic and threatened species from the Diamantina Plateau in Minas Gerais state, Brazil","authors":"Pedro Henrique Cardoso, Diego Rafael Gonzaga, Marcelo Trovó","doi":"10.1111/njb.04200","DOIUrl":"https://doi.org/10.1111/njb.04200","url":null,"abstract":"<i>Stachytarpheta</i> is mainly distributed in Brazil, where the knowledge of species richness is still in progress. Here, we describe <i>S. meninii</i>, a new micro-endemic species from the Diamantina Plateau, Espinhaço Range. It is a shrub that can reach up to 1.8 meters in height, with abundant pedicellate glandular trichomes, viscous, aromatic leaves, inflorescences with oblong-triangular bracts, and blue corollas, with a tube that is barely exserted from the calyx. The new species has been recorded from two gatherings from the same locality in the municipality of Serro, Minas Gerais state, and can be considered Critically Endangered (CR). Illustrations and a distribution map are provided for the recognition of <i>S. meninii</i>, along with an identification key for species of the genus found in Diamantina Plateau.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"56 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504996","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":"Studies of Asian ‘Calliandra' lead to expansion of Sanjappa (Fabaceae-Caesalpinioideae)","authors":"Mats Thulin","doi":"10.1111/njb.04241","DOIUrl":"https://doi.org/10.1111/njb.04241","url":null,"abstract":"The genus <i>Sanjappa</i>, previously with the single species <i>S. cynometroides</i> in southern India, is expanded to include <i>S. umbrosa</i>, comb. nov., in northeastern India, Bangladesh, Myanmar and China (Yunnan) and <i>S. vietnamica</i>, sp. nov., in southern Vietnam. <i>Sanjappa</i> differs from <i>Thailentadopsis</i>, its sister genus in the <i>Zapoteca</i> clade, by having leaves with extrafloral nectaries in the form of sessile (versus stipitate) glands and elastically dehiscent, not moniliform pods (versus pods not elastically dehiscent and submoniliform). <i>Sanjappa</i> <i>umbrosa</i> and <i>S. vietnamica</i> differ from <i>S. cynometroides</i> by having bipinnate leaves with one pair of pinnae (versus simply pinnate leaves with two leaflets only) and a four-lobed (versus three-lobed) corolla. In <i>S. umbrosa</i> each pinna is 2–3-foliolate and paired stipular spines are mainly present on younger growth, whereas in <i>S. vietnamica</i> each pinna is (3–)4–5-foliolate and branches, including major ones, are armed with numerous paired spines with thickened bases. Synonymies, images and notes on distribution, habitat, taxonomy and conservation for the three species of <i>Sanjappa</i> are provided, and all names are typified. With the taxonomic changes proposed here, all Asian species previously treated as members of <i>Calliandra</i> have been accommodated outside this genus.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"39 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138541884","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":"The Iranian enigmatic endemic Salvia majdae (Lamiaceae): its taxonomic status based on floral ontogeny","authors":"Mahtab Shahraki, Iraj Mehregan, Yousef Ajani, Younes Asri","doi":"10.1111/njb.04170","DOIUrl":"https://doi.org/10.1111/njb.04170","url":null,"abstract":"Since the first description of Salvia majdae (syn. Zhumeria majdae) in 1967, its taxonomic status has remained an enigma within Salvia senso lato due to its unusual characters, in particular the floral structure. Based on recent molecular phylogenetic data, two defensible opinions on its status have been proposed. Here, we studied the floral development of this species using scanning electron microscopy to resolve this ambiguity. The aspects of floral symmetry were also studied. Like species of Salvia and representative genera of Lamiaceae, the initiation sequence of sepals and stamens in S. majdae is unidirectional from adaxial to abaxial and reverse, respectively. The flowers show temporal overlaps in initiation of petals and stamens. However, in contrast, the bidirectional initiation of the petals in S. majdae is reversed, starting with the abaxial middle petal, followed by the two adaxial ones, and then finally ending with the two lateral ones. The filaments of the sterile stamens are elongated and exposed as staminodes thorough development. We conclude that subequal growth of the calyx lips, weak cochlear aestivation and bidirectional initiation of the petals and well‐developed sterile stamen primordia are responsible for the weak floral asymmetry in S. majdae. Based on these data, S. majdae shows significant differences from Salvia.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"49 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504972","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}
Vladimir N. Godin, Aleksey Yu. Astashenkov, Vera A. Cheryomushkina, Kobil A. Bobokalonov
{"title":"Gynodioecy of Origanum vulgare ssp. gracile (Lamiaceae) in Tajikistan","authors":"Vladimir N. Godin, Aleksey Yu. Astashenkov, Vera A. Cheryomushkina, Kobil A. Bobokalonov","doi":"10.1111/njb.04148","DOIUrl":"https://doi.org/10.1111/njb.04148","url":null,"abstract":"Gynodioecy has been identified to occur in the herbaceous polycarpic <i>Origanum vulgare</i> ssp. <i>gracile</i> growing in Tajikistan and is here described in detail for the first time. The investigated populations of <i>O. vulgare</i> ssp. <i>gracile</i> form two types of flowers, perfect and pistillate, on different individuals. In pistillate flowers, stamens are represented by staminodes. The size of many parts of the corolla and androecium of perfect flowers is significantly larger than in pistillate flowers. Four criteria have been identified that make it possible to reliably distinguish flowers of different sexual forms: the size of the corolla and its parts, the difference between calyx tube length versus corolla tube length, the position of the anthers, and the rate of development of stamens. Perfect flowers are characterized by strictly pronounced protandry. According to the pollen/ovule ratio (from 825 to 953), <i>O. vulgare</i> ssp. <i>gracile</i> is facultatively xenogamous. Hermaphrodites predominated (from 58.9 to 76.2%) in five of the investigated populations. The frequency of females in <i>O. vulgare</i> ssp. <i>gracile</i> was shown to be most dependent on annual precipitation. Finally, we discuss the presence and distribution of gynodioecy within the genus <i>Origanum</i> and its adaptive significance for the existence of populations of <i>O. vulgare</i> ssp. <i>gracile</i>.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"57 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504995","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":"Astragalus roseocephalus, a new species of section Poliothrix from Pakistan","authors":"Amjad Khan, Amir Sultan, Sayed Afzal Shah","doi":"10.1111/njb.03839","DOIUrl":"https://doi.org/10.1111/njb.03839","url":null,"abstract":"A new species, <i>Astragalus roseocephalus</i> sp. nov., is described and illustrated. It is known from Islamabad Capital Territory (Margalla hills), Rawalpindi district, Hazara and Kashmir. It belongs to <i>Astragalus</i> section <i>Poliothrix</i> Bunge. Morphologically, it is closely related to <i>Astragalus leucocephalus</i> Benth., but differs in height, presence of connate stipules, opposed to free lateral stipules in <i>A. leucocephalus,</i> stipule shape, leaf length, leaflet size, number, arrangement and shape, peduncle length, corolla colour, size and shape of standard, fruit shape and number of seeds. In addition, anatomy, pollen morphology, distribution and conservation status of the new species are discussed.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"48 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504973","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":"Eragrostis shrirangii sp. nov. (Poaceae) from Uttar Pradesh, India","authors":"Tushar Anilrao Lohit, Vijay Vishnu Wagh","doi":"10.1111/njb.04160","DOIUrl":"https://doi.org/10.1111/njb.04160","url":null,"abstract":"<i>Eragrostris shrirangii</i> (Poaceae), a new species from the Agra district of Uttar Pradesh, India, is described and illustrated. A morphological comparison of <i>E. shrirangii</i> and the closely related species <i>E. henryi</i> and <i>E. minor</i> is provided. In addition, habitat details, a distribution map and the conservation status of the new species are given.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"58 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504994","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":"New species and new record of the genus Poa L. (Poaceae, Pooideae, Poeae) from India","authors":"Sangam Sharma, Dileshwar Prasad, Shubham Jaiswal, Priyanka Agnihotri","doi":"10.1111/njb.04179","DOIUrl":"https://doi.org/10.1111/njb.04179","url":null,"abstract":"<i>Poa sachensis,</i> a new species from the Sach Pass, Western Himalaya, is described and illustrated. It is a member of <i>P.</i> subg. <i>Ochlopoa</i> sect. <i>Alpinae</i>, and closely allied to <i>P. alpina</i>, but differs from the latter by its lower glume one-nerved, callus scantly hairy, lemma (3.87–) 4.18–4.54 (–4.65) mm long, purplish, surface between nerves glabrous, palea proliferate and keels ciliate 1/2nd to 1/3rd part, and two stamens in fertile floret with anther (2.42–) 2.67–3.08 (–3.21) mm long. Further, we have added <i>P. diaphora</i> var. <i>alpina</i> for the first time to the flora of India based on specimens collected from the semiarid habitats of Spiti Valley. Information on the distribution, habitat, flowering, and fruiting cycles is provided along with a distribution map for each taxon.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"53 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504998","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}
Denise Moura Madeira, Renan de Soldi Matzner, Vinvivenci Filipe Pereira de Lima e Silva, Giuliano Barcelos, Cleber Rodrigo de Souza, Lucélia Rodrigues Santos, Felipe De Carvalho Araújo, Michael de Oliveira Alves Braga, Lidiany Carolina Arantes da Silva, Rafaella Tavares Pereira, Ana Lívia de Carvalho Rodrigues, Vinicius Andrade, Rubens Manoel dos Santos
{"title":"Flooding drives tropical dry forest tree community assembly in Southeast Brazil","authors":"Denise Moura Madeira, Renan de Soldi Matzner, Vinvivenci Filipe Pereira de Lima e Silva, Giuliano Barcelos, Cleber Rodrigo de Souza, Lucélia Rodrigues Santos, Felipe De Carvalho Araújo, Michael de Oliveira Alves Braga, Lidiany Carolina Arantes da Silva, Rafaella Tavares Pereira, Ana Lívia de Carvalho Rodrigues, Vinicius Andrade, Rubens Manoel dos Santos","doi":"10.1111/njb.03913","DOIUrl":"https://doi.org/10.1111/njb.03913","url":null,"abstract":"In this study, we characterized and compared vegetation types associated with geomorphological units susceptible to distinct flooding levels. Differences in vegetation are related to landform variations. We aimed to 1) characterize the vegetation structure and quantify community compositional differences among landforms and 2) compare landforms soil characteristics and how these correlate with the tree vegetation. The study area is located in the Brazilian <i>Caatinga</i> domain, near the Verde Grande river, a tributary of São Francisco river (14°54′38ʺS, 43°42′53ʺW). We allocated six plots in each of the five landforms sampled (from wettest to driest sites): 1) marginal dike (RF – riparian forest), 2) upper terrace (RWF – riparian wetland forest), 3) lower terrace (WF – wetland forest), 4) lower plain (OFF – occasionally flooded forest) and 5) upper plain (UF – unflooded forest). We ran a non-metric multidimensional scaling, produced a Venn diagram, and performed a principal component analysis (PCA) on the soil data (compared through a Tukey test at 5% significance after a significant ANOVA). A total of 1422 individuals, 26 families, 70 genera and 89 species were recorded. The NMDS revealed two distinct floristic groups: one group is associated with landforms with assumed higher flood frequency (RF, RWF, WF) and one with less frequently flooded landforms (OFF and UF). The RF, OFF, and UF landforms contained exclusive species (that only occurred in the plots of a particular landform). The species <i>Geofroea spinosa</i> (Fabaceae) was responsible for 70% of the total biomass recorded in the landforms RWF and WF. The soil analysis showed a gradient of soil acidity and fertility related to water saturation, whereby the most frequently flooded plots had the highest acidity values and highest fertility. We found that flood-related conditions significantly influence tree community structure and species distribution in this floodplain in the Brazilian Caatinga domain.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"92 ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138505003","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":"A new Malaxis (Orchidaceae: Malaxidinae) from the Campos de Altitude of the Atlantic rainforest in southern Brazil","authors":"Thiago Faria dos Santos, Eric de Camargo Smidt","doi":"10.1111/njb.04164","DOIUrl":"https://doi.org/10.1111/njb.04164","url":null,"abstract":"<i>Malaxis ybytus</i> is proposed as a new species from the wetlands of the Campos de Altitude of the Atlantic rainforest of south Brazil, Serra do AraçatubaPapanduva mountain chain. It is described, illustrated, and compared with other similar species. The new species is similar to <i>Malaxis cipoensis</i> and <i>Malaxis sertulifera</i>, but it is recognised by its flat to slightly conduplicate leaves, densely congested inflorescence with small flowers bearing free lateral sepals and four foveas in the lip. Due to the high degree of endemism in this environment, the few collection records and the anthropic pressure in the region, we infer that the species is critically endangered (CR) based in criterium D of the IUCN.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"58 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138504993","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}
Yan‐Shuang Huang, Xin‐Yu Jia, Qiu‐Gen Zeng, Wei‐Liang Wen, Qiang Fan
{"title":"<i>Viola pendulipes</i> (Violaceae), a new species from Guangdong Province, China","authors":"Yan‐Shuang Huang, Xin‐Yu Jia, Qiu‐Gen Zeng, Wei‐Liang Wen, Qiang Fan","doi":"10.1111/njb.04165","DOIUrl":"https://doi.org/10.1111/njb.04165","url":null,"abstract":"Viola pendulipes (Violaceae), a new myrmecochous species from Baiwan Nature Reserve of Guangdong Province in China, is described and illustrated. Morphologically the new species is most similar to V. nanlingensis , but it is easily distinguished by having truncate or cuneate leaf base (versus cordate leaf base), robust rhizome with short internodes (versus slender rhizome with long internodes), curved and drooping peduncles in fruit (versus erect peduncles in fruit), and oblong anterior petals (versus spatulate to rhombic anterior petals). Our phylogenetic analysis, based on ITS sequences, confirms that the new species belongs to V . subsect. Diffusae , and is most closely related to V. yunnanensis .","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"45 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135681983","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}