scholarly journals Dryopteris goldiana × D. intermedia, a Natural Fern Hybrid New to Canada

2003 ◽  
Vol 117 (4) ◽  
pp. 649
Author(s):  
Paul M. Catling

The rare fern hybrid Dryopteris goldiana × D. intermedia is reported for the first time from Canada on the basis of a collection from eastern Ontario. The plant occurred in rich deciduous woods in an extensive seepage area at the base of a slope. The immediate vicinity had an unusually high floristic diversity and 25 associated vascular plants are listed. Distinguishing characteristics of the hybrid are outlined.

Check List ◽  
2021 ◽  
Vol 17 (6) ◽  
pp. 1715-1730
Author(s):  
Dipti Dey ◽  
Puja Bhojak ◽  
K. Chandra Sekar ◽  
Dhani Arya

We document for the first time the diversity of vascular plants of Chandra Tal and Suraj Tal, two high-altitude wetlands (HAWs) spanning the cold desert region of Lahaul-Spiti, showing the occurrence of 188 species and one variety distributed among 97 genera and 29 families. Only one species, Ephedra intermedia Schrenk & C.A. Mey. is a gymnosperm, and the other 187 species are angiosperms. Of the angiosperms, Asteraceae is the dominant family, consisting of 27 species and one variety in 17 genera. Among the species, six are classified as threatened, 17 species are native, and two species (Eritrichium nanum (L.) Gaudin and Ranunculus trivedii Aswal & Mehrotra) are endemic to the Himalayan region. We provide baseline data for future research on the floristic diversity of two major HAWs of Lahaul-Spiti. We also highlight the importance of HAWs for the conservation of species.


2015 ◽  
Vol 129 (1) ◽  
pp. 24 ◽  
Author(s):  
Paul C. Sokoloff

New collections of vascular plants, bryophytes, lichen, and algae are reported for Cunningham Inlet on the north coast of Somerset Island, Nunavut. This list of 48 species of vascular plants, 13 bryophytes, 10 lichens, and five algae includes 136 specimens collected in 2013 and 39 previously unreported specimens from the National Herbarium of Canada at the Canadian Museum of Nature (CAN), Agriculture and Agri-Food Canada’s Vascular Plant Herbarium (DAO), and University of Alberta (ALTA). Ten vascular plants from previous collecting in 1958 are re-reported here to give a comprehensive account of the vascular plant flora of the region. Two vascular plants are recorded for the first time for Somerset Island: Smooth Draba (Draba glabella Pursh) and Edlund’s Fescue (Festuca edlundiae S. G. Aiken, Consaul & Lefkovitch).


Author(s):  
J. Murillo Conterón ◽  
R. Peña Murillo ◽  
D. Román Robalino

In the higher part of the Santa Fe de Galán parish, intensive agricultural activities are carried out that cause problems of erosion, disappearance of species of fauna and flora, decrease in water and deterioration of páramo areas due to the advance of the agricultural frontier. These activities present a threat to the sustainability of the San José de Chazo-Santa Fe de Galán region, due to the degradation of its natural resources that directly affect the vital development of 1200 families belonging to this region. The present investigation aims to study ecosystem services linked to water, as well as floristic diversity, for which data was collected and systematized from the Ciénega páramo in the San José de Chazo-Santa Fe de Galán region. According to the data collected on floristic diversity, 29 samples of terrestrial vascular plants were registered, corresponding to 18 families, 26 genera and 29 species; moss and lichen of unidentified family, genus and species were also collected. The highest index of importance value by species and family was presented by the moss with 20.39% and 18.17%, respectively. The average monthly flow during the February–May period observed through the volumetric method was 6.34 L/s. Keywords: capacity, flow, diversity, paramo, ecosystem services, sustainability. Resumen En la parte alta de la Parroquia Santa Fe de Galán se desarrollan actividades agropecuarias intensivas que provocan problemas de erosión, desaparición de especies de fauna y flora, disminución del agua y deterioro de áreas de páramo por el avance de la frontera agrícola. Estas actividades representan una amenaza para la sostenibilidad de la Regional San José de Chazo– Santa Fe de Galán, debido a la degradación de sus recursos naturales que inciden directamente en el desarrollo vital de 1200 familias pertenecientes a esta Regional. La presente investigación tiene como objetivo estudiar los servicios ecosistémicos ligados al agua y diversidad florística, cuyos datos fueron recolectados y sistematizados del páramo de la Ciénega en la Regional San José de Chazo–Santa Fe de Galán. De acuerdo con los resultados de diversidad florística se registró 29 muestras de plantas vasculares terrestres, correspondiente a 18 familias, 26 géneros y 29 especies, también se recolectó musgo y liquen de familia, género y especie no identificados. El mayor índice de valor de importancia por especie y familia lo presentó el musgo con 20,39% y 18,17%, respectivamente. El caudal promedio mensual durante el período febrero – mayo a través del método volumétrico fue de 6,34 L/s. Palabras clave: aforo, caudal, diversidad, páramo, servicios ecosistémicos, sostenibilidad.


Bothalia ◽  
2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Norbert Hahn

Background: The first checklist for the Soutpansberg was published in 1946, and the second list was compiled by the author in 2006 as part of his doctoral thesis. Currently, there is a need for an updated account of the biodiversity of the Soutpansberg Centre of Endemism and Diversity for conservation planning in the Vhembe Biosphere Reserve, within which the Soutpansberg is the principle geomorphological feature.Objectives: To present an updated list of vascular plants recorded for the Soutpansberg.Method: The list was compiled from various sources including literature reviews, herbarium specimens, herbarium databases and personal observations.Results: This article presents the most geographically accurate and taxonomically updated list of the indigenous vascular flora of the Soutpansberg, the northernmost mountain range of South Africa. Altogether 2443 taxa are recorded belonging to 922 genera in 187 families and 64 orders.Conclusion: The list presented in this article confirms the status of the Soutpansberg as a centre of floristic diversity in southern Africa. Notable is the higher-order diversity of the flora. It is likely that both future surveys and reviews of herbarium collections will add new taxa to the current total.


2012 ◽  
Vol 33 (4) ◽  
pp. 383-394 ◽  
Author(s):  
Karel Prach ◽  
Jitka Klimešová ◽  
Jiří Košnar ◽  
Olexii Redčenko ◽  
Martin Hais

Abstract Vegetation was described in various spatial scales in the area of 37.8 km2 including distinguishing vegetation units, vegetation mapping, recording phytosociological relevés (53), and completing species lists of vascular plants (86), mosses (124) and lichens (40). Phytosociological relevés were elaborated using ordination methods DCA and CCA. The relevés formed clusters corresponding well to a priori assigned vegetation units. Slope and stoniness significantly influenced the vegetation pattern. Despite the high latitude (nearly 80° N), the vegetation is rather rich in species. Non-native species do not expand. The moss Bryum dichotomum is reported for the first time from Svalbard archipelago.


2018 ◽  
Vol 6 ◽  
pp. e27032 ◽  
Author(s):  
Flavio Carmo ◽  
Rubens da Mota ◽  
Luciana Kamino ◽  
Claudia Jacobi

Ironstone ranges are considered hotspots for higher plants α and β diversity. The lack of studies and the intense degradation of the ironstone ranges, due to mining, motivated us to compile, for the first time, a list of vascular plants collected on iron-rich derived substrates from ancient landscape of south-eastern Brazil. All existing records in the Brazilian Virtual Herbarium of Flora and Fungi for each of the 43 municipalities containing ironstone ranges were downloaded, resulting in 17,954 vouchers identified to the species level. We found 2,933 species belonging to 160 families and 818 genera. For the first time, we identified 148 species mentioned in endangered flora official lists and 48 narrow endemic species. Collecting efforts must still be supported to properly sample the vegetation since, for 143 sites, less than 10 records/site were found. This dataset will assist with the indication of dozens of plant species whose threat criteria must be urgently assessed to subsidise public policies on the use and conservation of the Brazilian flora.


Turczaninowia ◽  
2021 ◽  
Vol 24 (4) ◽  
pp. 131-139
Author(s):  
Sergey V. Smirnov ◽  
Aleksey A. Kechaykin ◽  
Vladislav S. Tenigin ◽  
Ilja A. Shestakov ◽  
Alexander I. Shmakov

The article presents new data on the distribution in the territory of Western Altai of 20 species of vascular plants from the families Asteraceae, Betulaceae, Boraginaceae, Crassulaceae, Huperziaceae, Grossulariaceae, Lamiaceae, Onagraceae, Orchidaceae, Papaveraceae, Polygonaceae, Ranunculaceae, Rosaceae, Saxifragaceae и Violaceae. All of them were collected in the highlands of the Korgon Range within the Altai Territory. Of these, Potentilla crebridens is reported for the first time for the Altai Territory and Western Altai; for other species, new localities are indicated. For the first time for the Korgon Range within the Altai Territory, Saxifraga terektensis, Viola tigirekica are presented, and the exact location of Potentilla nivea is noted. New localities of rare and protected species were discovered: Callianthemum sajanense, Huperzia appressa, Pyrethrum alatavicum, Saussurea baicalensis, Scutellaria altaica. For each species, the general distribution, ecology data are given, for some species, notes on the difference and differentiation of them from the closest taxa are indicated. If necessary, the locations of the species previously registered in the Western Altai are indicated. For the species included in the “Red Data Book of the Altai Territory”, we provide an information on the approximate number of individuals in the found populations. Based on the analysis of herbarium material, we exclude Potentilla nervosa from the list of flora of the Altai Territory.


2018 ◽  
Vol 96 (1) ◽  
pp. 103
Author(s):  
Miguel Ángel Macías-Rodríguez ◽  
Héctor Gerardo Frías-Ureña ◽  
Sergio Honorio Contreras-Rodríguez ◽  
Alfredo Frías-Castro

<p><strong>Background:</strong> The Sayula sub-basin presents a complex landscape composed of plants communities that to date have not been studied in a timely manner, so this study contributes to the knowledge of the flora and vegetation of the area and the State.</p><p><strong>Question:</strong> i) How many and which families, genera and species are in the Sayula sub-basin? ii) What are the main biological forms of the species? iii) Are there species under any category of protection? iv) How many vegetation types are present within the region?<br /> <strong>Studied species:</strong> Ferns, Gymnosperms and Angiosperms.<br /> <strong>Study site and years of study:</strong> The Sayula sub-basin, Jalisco, Mexico; from February 2012 to October 2015.<br /> <strong>Methods:</strong> Through the literature review and field work the floristic checklist was elaborated. In addition, with the use of geographic information systems, a map of land use and vegetation was made.<br /> <strong>Results:</strong> A total of 687 species were recorded, including 415 genera and 113 families. The five main families were Poaceae, Asteraceae, Fabaceae Solanaceae and Euphorbiaceae representing 42.6 % of the total species and 36.6 % of the genera. It should be noted that the predominant biological forms were herbs with 409, 105 shrubs and 74 trees. On the other hand, 47 species registered under some protection category of which, only one species <em>Cleomella jaliscensis</em> is endemic to the region. Finally, eight vegetation types were determined, being the tropical deciduous forest the one that occupies greater surface and presents greater floristic diversity.<br /> <strong>Conclusions:</strong> It is important to emphasize that during the realization of the work, agricultural activities were detected affecting the flora and vegetation, threatening the biodiversity and the natural balance of the region.</p>


2021 ◽  
Vol 9 ◽  
Author(s):  
Filip Verloove

Recent fieldwork by the author in Tenerife, mostly between 2014 and 2019, yielded new records of alien vascular plants. Fifteen taxa (Acacia decurrens, A. mearnsii, Caesalpinia pulcherrima, Ensete ventricosum, Eucalyptus camaldulensis subsp. arida, E. cladocalyx, Euryops chrysanthemoides, Ficus elastica, Lippia alba, Pavonia sepioides, Pittosporum tobira, Populus × canadensis, Pyrostegia venusta, Ruellia dipteracanthus and Wigandia kunthii) are reported for the first time from the Canary Islands. All were initially introduced on purpose, mostly as ornamentals, and recently started to escape from cultivation. Most of them are ephemerals or only locally established, but nearly all have the potential to naturalise in the future. Thirteen additional species are reported for the first time from Tenerife: Atriplex nummularia, Bellis perennis, Chenopodium probstii, Coccoloba uvifera, Commelina benghalensis, Cuphea hyssopifolia, Eragrostis virescens, Lemna minuta, Malvastrum corchorifolium, Plerandra elegantissima, Psidium guajava, Thunbergia alata and Urochloa subquadripara. Finally, some miscellaneous notes are provided on the presence of Balanites aegyptiaca, Callistemon viminalis, Grevillea robusta and Passiflora caerulea in Tenerife.


2021 ◽  
Author(s):  
Filip Verloove

Recent fieldwork by the author in Tenerife, mostly between 2014 and 2019, yielded new records of alien vascular plants. Seventeen taxa (Acacia decurrens, A. mearnsii, Brachychiton diversifolius, Caesalpinia pulcherrima, Ensete ventricosum, Eucalyptus camaldulensis subsp. arida, E. cladocalyx, Euryops chrysanthemoides, Ficus elastica, Lippia alba, Pavonia sepioides, Pittosporum tobira, Populus ×canadensis, Pyrostegia venusta, Ruellia dipteracanthus, Soleirolia soleirolii and Wigandia kunthii) are reported for the first time from the Canary Islands. All were initially introduced on purpose, mostly as ornamentals, and recently started to escape from cultivation. Most of them are ephemerals or only locally established but nearly all have the potential to naturalize in the future. Thirteen additional species are reported for the first time from Tenerife: Atriplex nummularia, Bellis perennis, Chenopodium probstii, Coccoloba uvifera, Commelina benghalensis, Cuphea hyssopifolia, Eragrostis virescens, Lemna minuta, Malvastrum corchorifolium, Plerandra elegantissima, Psidium guajava, Thunbergia alata and Urochloa subquadripara. Finally, some miscellaneous notes are provided on the presence of Balanites aegyptiaca, Callistemon viminalis, Grevillea robusta and Passiflora caerulea in Tenerife.


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