New Journal of Botany最新文献_第3页

Prickly Palm Acrocomia spp. (Arecaceae) endocarps: first records from Irish waters and a review of NW European records 刺棕榈Acrocomia spp.(槟榔科)内腕类:爱尔兰水域首次记录及欧洲西北部记录综述

New Journal of Botany Pub Date : 2017-01-02 DOI: 10.1080/20423489.2017.1354470

D. Quigley, P. Gainey, A. Pyne, R. Hill

{"title":"Prickly Palm Acrocomia spp. (Arecaceae) endocarps: first records from Irish waters and a review of NW European records","authors":"D. Quigley, P. Gainey, A. Pyne, R. Hill","doi":"10.1080/20423489.2017.1354470","DOIUrl":"https://doi.org/10.1080/20423489.2017.1354470","url":null,"abstract":"Although at least 34 species of Prickly Palm (Acrocomia) have been described, the genus is currently considered to be represented by only three valid species: A. aculeata, A. hassleri, and A. (Gastrococos) crispa. Acrocomia species are only found in subtropical regions of South and Central America and the Caribbean Islands. Acrocomia diaspores (fruits and endocarps) are naturally dispersed by domestic mammals, wild mammals, bats, birds, reptiles and humans. However, some empty non-viable endocarps inevitably find their way into rivers and eventually float out to sea where they are widely dispersed by oceanic currents and at least some occasionally reach NW European waters from the Caribbean region via the Gulf Stream and North Atlantic Drift. The current review collates all known records of Acrocomia endocarps found stranded in NW Europe, including the first two reported from Irish waters and four previously unpublished UK records. Although the identification of Acrocomia endocarps currently defies efforts to pin them down to species level, at least one the NW European specimens was identified as A. aculeata. Morphometric studies of Acrocomia endocarps, combined with confirmatory genetic analyses, may help to resolve both the identity and provenance of drift endocarps found stranded in maritime regions.","PeriodicalId":19229,"journal":{"name":"New Journal of Botany","volume":"66 1","pages":"51 - 56"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86104561","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}

引用次数: 0

A summary of hybrids detected in the genus Hedera (Araliaceae) with the provision of three new names 标题五加科五加属杂交植物的综述，并提供三个新名称

New Journal of Botany Pub Date : 2017-01-02 DOI: 10.1080/20423489.2017.1344041

R. Marshall, H. Mcallister, J. Armitage

{"title":"A summary of hybrids detected in the genus Hedera (Araliaceae) with the provision of three new names","authors":"R. Marshall, H. Mcallister, J. Armitage","doi":"10.1080/20423489.2017.1344041","DOIUrl":"https://doi.org/10.1080/20423489.2017.1344041","url":null,"abstract":"Hedera L. (Araliaceae) is a northern temperate genus of around twelve, largely allopatric, species. No hybrids have been confirmed from the few areas where species distributions naturally intersect. The intergeneric hybrid × Fatshedera, introduced in 1910, is believed to be the first known occurrence of hybridisation involving an extant species of Hedera. The existence of a hybrid within Hedera was established by the detection of H. helix × H. hibernica in 2005. Here, aberrant plants recently observed in the UK, USA and Spain, from cultivated and naturalised populations, are shown to be hybrids based on their morphological characters and chromosome counts. Three new infrageneric hybrids in Hedera are described. The names H. × sepulcralis, H. × cazorlensis and H. × nessensis are provided for hybrids between H. hibernica and H. algeriensis, H. helix and H. maroccana, and H. iberica and H. hibernica respectively. The distinguishing features of these plants are discussed and a key allowing identification of the two hybrids known to have arisen in the UK is given. These discoveries reveal the potential for hybridisation within Hedera and geographical separation, therefore, appears to be the main barrier to crossing between species in the wild. As species come increasingly into contact through cultivation and naturalisation, it is predicted that more hybrids will appear. These hybrids highlight a previously unrecognised risk of introgression among these morphologically similar species.","PeriodicalId":19229,"journal":{"name":"New Journal of Botany","volume":"560 1","pages":"2 - 8"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87014699","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}

引用次数: 8

Morphometrics and taxonomy of Erigeron acris sensu lato (Asteraceae) in Fennoscandia 芬诺斯坎地菊科鸢尾花形态计量学与分类

New Journal of Botany Pub Date : 2017-01-02 DOI: 10.1080/20423489.2017.1344076

S. Olander, T. Tyler

{"title":"Morphometrics and taxonomy of Erigeron acris sensu lato (Asteraceae) in Fennoscandia","authors":"S. Olander, T. Tyler","doi":"10.1080/20423489.2017.1344076","DOIUrl":"https://doi.org/10.1080/20423489.2017.1344076","url":null,"abstract":"Morphometric multivariate analysis has been performed based on 23 characters observed on 113 herbarium specimens from throughout Fennoscandia. This demonstrates that four taxa can be recognised within Erigeron acris L. sensu lato, viz. E. acris L. subsp. acris, E. acris subsp. decoloratus (H. Lindb.) Hiitonen, E. acris subsp. droebachiensis (O. F. Müll.) Arcang. and E. acris subsp. politus (Fr.) H. Lindb. In contrast, the previously accepted E. (acris subsp.) brachycephalus H. Lindb. is shown to be indistinguishable from E. acris subsp. droebachiensis and is accordingly treated as a synonym. The subspecies are distinguishable mainly based on indumentum characteristics, and size and pigmentaton of phyllaries and floral parts, but 21 of the 23 characters were significantly different among taxa. The largest number (ten) of significantly different characters was found between subspecies acris, droebachiensis and politus, whereas only five characters differed significantly between decoloratus and acris. The contrasting character ranges and distinctness of these taxa is presented and discussed, and a key to the subspecies is provided. In addition, their distributions in Sweden are mapped based on herbarium specimens, showing that subsp. acris is common almost throughout the country, subsp. droebachiensis is relatively rare and restricted to the central parts, and subsp. politus is confined to the northern half.","PeriodicalId":19229,"journal":{"name":"New Journal of Botany","volume":"57 1","pages":"39 - 50"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90532064","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}

引用次数: 4

New combinations in six genera of the British flora 英国植物六个属的新组合

New Journal of Botany Pub Date : 2017-01-02 DOI: 10.1080/20423489.2017.1344044

C. Stace

{"title":"New combinations in six genera of the British flora","authors":"C. Stace","doi":"10.1080/20423489.2017.1344044","DOIUrl":"https://doi.org/10.1080/20423489.2017.1344044","url":null,"abstract":"The adoption of a molecular basis for the classification of the flora of the British Isles introduces the need for numerous new combinations. Many of these have been made by other authors for their particular purposes, but the following appear so far to be lacking. 1. Roemeria Medik. (Papaveraceae) It was shown by Morales et al. (1988) that our two prickly-fruited poppies have the pollen-type of the genus Roemeria rather than that of Papaver L., and molecular studies have confirmed this relationship. Morales et al.made the combination for Papaver argemone L. under Roemeria, but that for P. hybridum L. appears to be still wanting. The epithet hybrida is already taken in Roemeria, so the next earliest specific name has to be used as the basionym. Roemeria hispida (Lam.) Stace, comb. nov. Basionym: Papaver hispidum Lam., Fl. Franç. (Lamarck) 3: 174 (1779) Synonym: Papaver hybridum L. 2. Eythranthe Spach (Phrymaceae) Molecular data show that Mimulus L. should be split in order to maintain monophyletic genera (Barker et al., 2012; Nesom, 2012). All our taxa now belong to the genus Erythranthe, in which the following new combinations are required. Erythranthe x burnetii (S. Arn.) Silverside, comb. nov. Basionym: Mimulus x burnetii S. Arn., Gard. Chron., ser. 3, August 1","PeriodicalId":19229,"journal":{"name":"New Journal of Botany","volume":"62 1","pages":"10 - 9"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74265160","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}

引用次数: 3

Elm clone identification and the conundrum of the slow spread of Dutch Elm Disease on the Isle of Man 榆树克隆鉴定和荷兰榆树病在马恩岛缓慢传播的难题

New Journal of Botany Pub Date : 2016-09-01 DOI: 10.1080/20423489.2016.1271612

M. Coleman, S. A'Hara, P. R. Tomlinson, P. J. Davey

{"title":"Elm clone identification and the conundrum of the slow spread of Dutch Elm Disease on the Isle of Man","authors":"M. Coleman, S. A'Hara, P. R. Tomlinson, P. J. Davey","doi":"10.1080/20423489.2016.1271612","DOIUrl":"https://doi.org/10.1080/20423489.2016.1271612","url":null,"abstract":"This study was undertaken as part of a review of Ulmus L. for the forthcoming Flora of the Isle of Man. We have adopted molecular and morphological methods to reassess the identity of Ulmus on the Isle of Man and to explore the possibility that past records of English Elm, a single genotype cultivar called U. minor ‘Atinia’, were misidentifications. First, we utilised seven DNA microsatellite markers to test clone identity in a collection of 23 elms from across the Isle of Man. Sixteen samples were matched to a reference sample of Dutch Elm, U. × hollandica ‘Major’, and one sample was matched to a reference sample of English Elm. In parallel, we appraised a method employed to identify English Elm using a leaf shape metric, and found that leaf width divided by length values > 0.69 are indicative of this clone. Both molecular and morphological results in this study highlight that Dutch Elm has been misidentified as English Elm in the past, and that English Elm may in fact be a rare occurrence on the Island. The susceptibility of U. × hollandica ‘Major’ to Dutch Elm Disease suggests that the unusually slow spread of the disease on the Island is unlikely to be the result of local disease resistance in the elm population. One possibility that we explore is that the Scolytus beetle vector may experience suboptimal climatic conditions that could be limiting its dispersal, thereby reducing the rate of spread of infection.","PeriodicalId":19229,"journal":{"name":"New Journal of Botany","volume":"5 1","pages":"79 - 89"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79124652","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}

引用次数: 3

Molecular confirmation of Helosciadium × moorei (H. inundatum × H. nodiflorum; Apiaceae) from County Cork, Ireland 黄花霉的分子确证。nodiflorum;产自爱尔兰科克郡的蜂科植物

New Journal of Botany Pub Date : 2016-09-01 DOI: 10.1080/20423489.2016.1271294

S. Desjardins

引用次数: 1

A new natural hybrid in the genus Petasites: P. japonicus × P. pyrenaicus (Asteraceae) Petasites属一新的天然杂交种:P. japonicus × P.。pyrenaicus(菊科)

New Journal of Botany Pub Date : 2016-09-01 DOI: 10.1080/20423489.2016.1271383

S. Desjardins, Arthur G. Hoare, C. Stace

引用次数: 2

Notes on the Taraxacum (Asteraceae) flora of the Orkney Islands, British Isles (vc 111) 不列颠群岛奥克尼群岛蒲公英(菊科)植物区系注释(vc111)

New Journal of Botany Pub Date : 2016-09-01 DOI: 10.1080/20423489.2016.1271490

A. Richards, C. Ferguson-Smyth

引用次数: 0

Plant records 工厂的记录

New Journal of Botany Pub Date : 2016-09-01 DOI: 10.1080/20423489.2016.1273509

引用次数: 0

Mountain flowers 山的花

New Journal of Botany Pub Date : 2016-09-01 DOI: 10.1080/20423489.2016.1273497

A. Chater

引用次数: 6