Flora von Deutschland und Fennoskandinavien sowie von Island und Spitzbergen

Hermann, Friedrich

doi:10.5962/bhl.title.10894

Cited by 7 publications

(5 citation statements)

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“…Morphology was investigated using specimens from MJG (Table 1; herbarium codes according to Index herbariorum http://sweetgum.nybg.org/science/ih/). We observed the following morphological characters based on descriptions in different floras and other publications (Arduino 1764;Jordan 1849;Gremli 1878;Koch 1878;Hermann 1912;Clapham & Jardine 1993;Jäger 2011;Jonsell 2001 1. Willdenowia 52 -2022 ers with a red sepal margin.…”

Section: Resultsmentioning

confidence: 75%

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The distinction between Sagina apetala and S. micropetala (Caryophyllaceae: Sagineae), their phylogenetic relationships, and a note on the coastal origin of some widespread ruderals

Dillenberger

Kadereit

2022

Willdenowia

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Section: Resultsmentioning

confidence: 75%

“…decumbens most likely represents S. procumbens. Hermann (1912) stated that subsp. erecta has spreading sepals at fruit maturity, and in the illustration of var.…”

Section: Taxonomy and Nomenclature Of Sagina Apetala And S Micropetalamentioning

confidence: 99%

The distinction between Sagina apetala and S. micropetala (Caryophyllaceae: Sagineae), their phylogenetic relationships, and a note on the coastal origin of some widespread ruderals

Dillenberger

Kadereit

2022

Willdenowia

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“…Trisetum sect. Trisetaera included only the type, T. spicatum , and was distinguished by having a contracted panicle and densely pubescent panicle rachises, features also characteristic of Koeleria . Hermann (1956) recognized four informal groups in the genus: Trisetum , “Ventenata” (now understood to be a genus of subtribe Poinae), Rostraria , and “Argentaria”, with two species, T. distichophyllum and T. argenteum (Willd.) Roem.…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1)

Saarela¹,

Bull²,

Paradis³

et al. 2017

138

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Circumscriptions of and relationships among many genera and suprageneric taxa of the diverse grass tribe Poeae remain controversial. In an attempt to clarify these, we conducted phylogenetic analyses of >2400 new DNA sequences from two nuclear ribosomal regions (ITS, including internal transcribed spacers 1 and 2 and the 5.8S gene, and the 3’-end of the external transcribed spacer (ETS)) and five plastid regions (matK, trnL–trnF, atpF–atpH, psbK–psbI, psbA–rps19–trnH), and of more than 1000 new and previously published ITS sequences, focused particularly on Poeae chloroplast group 1 and including broad and increased species sampling compared to previous studies. Deep branches in the combined plastid and combined ITS+ETS trees are generally well resolved, the trees are congruent in most aspects, branch support across the trees is stronger than in trees based on only ITS and fewer plastid regions, and there is evidence of conflict between data partitions in some taxa. In plastid trees, a strongly supported clade corresponds to Poeae chloroplast group 1 and includes Agrostidinae p.p., Anthoxanthinae, Aveninae s.str., Brizinae, Koeleriinae (sometimes included in Aveninae s.l.), Phalaridinae and Torreyochloinae. In the ITS+ETS tree, a supported clade includes these same tribes as well as Sesleriinae and Scolochloinae. Aveninae s.str. and Sesleriinae are sister taxa and form a clade with Koeleriinae in the ITS+ETS tree whereas Aveninae s.str. and Koeleriinae form a clade and Sesleriinae is part of Poeae chloroplast group 2 in the plastid tree. All species of Trisetum are part of Koeleriinae, but the genus is polyphyletic. Koeleriinae is divided into two major subclades: one comprises Avellinia, Gaudinia, Koeleria, Rostraria, Trisetaria and Trisetum subg. Trisetum, and the other Calamagrostis/Deyeuxia p.p. (multiple species from Mexico to South America), Peyritschia, Leptophyllochloa, Sphenopholis, Trisetopsis and Trisetum subg. Deschampsioidea. Graphephorum, Trisetum cernuum, T. irazuense and T. macbridei fall in different clades of Koeleriinae in plastid vs. nuclear ribosomal trees, and are likely of hybrid origin. ITS and matK trees identify a third lineage of Koeleriinae corresponding to Trisetum subsect. Sibirica, and affinities of Lagurus ovatus with respect to Aveninae s.str. and Koeleriinae are incongruent in nuclear ribosomal and plastid trees, supporting recognition of Lagurus in its own subtribe. A large clade comprises taxa of Agrostidinae, Brizinae and Calothecinae, but neither Agrostidinae nor Calothecinae are monophyletic as currently circumscribed and affinities of Brizinae differ in plastid and nuclear ribosomal trees. Within this clade, one newly identified lineage comprises Calamagrostis coarctata, Dichelachne, Echinopogon (Agrostidinae p.p.) and Relchela (Calothecinae p.p.), and another comprises Chascolytrum (Calothecinae p.p.) and Deyeuxia effusa (Agrostidinae p.p.). Within Agrostidinae p.p., the type species of Deyeuxia and Calamagrostis s.str. are closely related, supporting classification of Dey...

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“…Arnica montana is a typical European plant species growing in a large gradient of altitudes from nutrient-poor dry grasslands and heathlands in the Netherlands [3,[10][11][12]] to 2,830 m a.s.l. [13] in the mountain grasslands of the Alps, and in a relatively large gradient of geographical latitudes from the Scandinavian Peninsula and Lithuania southwards to the South Carpathians and Apennines [14].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of species inter-relations and soil conditions in Arnica montana L. habitats: a step towards active protection of endangered and high-valued medicinal plant species in NE Poland

et al. 2018

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<em>Arnica montana</em> L. is a critically endangered and highly valued medicinal plant species in Europe. We show the inter-relationships between arnica and accompanying plant species, as well as soil factors, that promote the persistence of the studied forest arnica populations in terms of active protection of this species in the northeast region of Europe. The population characteristics and plant species composition were assessed during a field study. Additionally, soil samples were taken and analyzed to assess variation in soil conditions in the habitats of arnica populations. Correlations between population characteristics and soil properties were highlighted. The forest habitats of arnica presented in this study differ from those described in other European mountain and submountain areas. The sandy and very poor soils are characterized by a very low content of macro- and microelements, and a strong acid reaction. The positive correlation between population characteristics and Ca and K indicates an important role of these macroelements in flower head production. Acidity, K, Ca, the sum of exchangeable bases, and base saturation play crucial roles in the persistence of arnica populations in pine forests. The level of acidity and its consequences result from soil-forming processes and climatic conditions rather than air pollution. When planning active protection scenarios, special attention should be paid to the frequency and cover of <em>Vaccinium myrtillus</em>, which can act as a competitor in forest habitats. Assessment of soil conditions that favor the persistence of the studied arnica populations and species relationships is important for improving knowledge of the ecology of the species and for the active protection of endangered plant species.

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Flora von Deutschland und Fennoskandinavien sowie von Island und Spitzbergen

Cited by 7 publications

References 0 publications

The distinction between Sagina apetala and S. micropetala (Caryophyllaceae: Sagineae), their phylogenetic relationships, and a note on the coastal origin of some widespread ruderals

The distinction between Sagina apetala and S. micropetala (Caryophyllaceae: Sagineae), their phylogenetic relationships, and a note on the coastal origin of some widespread ruderals

Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1)

Evaluation of species inter-relations and soil conditions in Arnica montana L. habitats: a step towards active protection of endangered and high-valued medicinal plant species in NE Poland

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