<i>Potamogeton</i> taxa proposed by J. F. Wolfgang and his collaborators

Kaplan, Zdeněk; Zalewska‐Gałosz, Joanna

doi:10.2307/4135570

Cited by 24 publications

(18 citation statements)

References 6 publications

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“…Potamogetonaceae have markedly different phenotype in running water (e.g., Kaplan 2002Kaplan , 2005Kaplan and Zalewska-Gałosz 2004). In contrast to broad-leaved Potamogeton species, which often produce narrow-leaved phenotypes in rivers, the linear-leaved plants of Stuckenia tend to have wider leaves in running water compared to the same genotype growing in standing water (Kaplan 2002 and this paper below).…”

Section: Patterns Of Morphological Variationmentioning

confidence: 94%

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

Kaplan

2008

Folia Geobot

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A taxonomic revision of the Asian species of Stuckenia, a segregate of Potamogeton, is presented. Six species are recognized and their morphological descriptions, nomenclature and typification of relevant names are given. Distributions of all species are described and lists of representative specimens and distribution maps provided. Lectotypes are designated for 24 names and nomenclatural types are listed for 22 additional names. The correct name for the species known as Potamogeton recurvatus is Stuckenia pamirica (Baagöe) Z. Kaplan, comb. nova. Morphological variation at different levels within the genus is described and compared with different concepts of its taxonomic interpretation. Instructions on examination of key characters are given, together with a key to species. Colour photographs illustrate the general appearance of species as well as many identification details. The pattern of variation and taxonomic validity of the Siberian morphotypes S. subretusa and S. austrosibirica are analyzed. The plasticity of diagnostic characters of P. juncifolius and of P. helveticus from the European Alps, the infraspecific classification of S. filiformis in North America, and the taxonomic status of S. punensis described from Peru are also discussed.

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Section: Patterns Of Morphological Variationmentioning

confidence: 94%

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

Kaplan

2008

Folia Geobot

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“…The Lake Como sample is a narrow-leaved form of this hybrid. The type collection of the name P.6salicifolius also has this phenotype (Kaplan & Zalewska-Gałosz, 2004). Also Fant & Preston (2004) noted that most of their samples of P.6salicifolius had on average, narrower leaves than either of its parents.…”

Section: Morphological Evaluationmentioning

confidence: 94%

First record ofPotamogeton×salicifoliusfor Italy, with isozyme evidence for plants collected in Italy and Sweden

Kaplan

2007

Plant Biosystems - An International Journal Dealing with all As

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Potamogeton6salicifolius, a hybrid between P. lucens and P. perfoliatus, is identified as a new taxon for Italy. This is the first record of this hybrid from southern Europe. The Italian sample was studied in cultivation and compared with a living specimen of P.6salicifolius from Sweden, where the hybrid is rather widespread. In addition to morphological features, the most compelling evidence for the hybrid origin of these plants came from the isozyme analysis. The additive ''hybrid'' banding patterns of the five enzyme systems studied indicate inheritance from P. lucens and P. perfoliatus. The distribution of this hybrid in Europe coincides with the areas most severely affected by the Late Pleistocene glaciation. The relationships between environmental conditions, history of the habitat and rise of hybrids are discussed.

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“…; Grace ). It is noteworthy that P. alpinus has a high phenotypic plasticity, especially such traits as shape and size of submerged leaves and a tendency to produce and develop floating leaves (Kaplan , ; Kaplan and Zalewska‐Gałosz ). According to Kaplan (), even within a single genotype such environmental factors as depth, light intensity, or water velocity cause changes in the morphological structure of stems, and submerged and floating leaves, which suggest that these are phenotypic responses.…”

Section: Introductionmentioning

confidence: 99%

The avoidance strategy of environmental constraints by an aquatic plant Potamogeton alpinus in running waters

Robionek

Banaś

Chmara

et al. 2015

Ecology and Evolution

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Aquatic plants anchored in streams are under pressure from various constraints linked to the water flow and display strategies to prevent their damage or destruction. We assume that the responses of aquatic plants to fast-water flow are a manifestation of a trade-off consisting in either maximizing the resistance to damage (tolerance strategy) in minimizing the hydrodynamic forces (avoidance strategy), or both. Our main hypothesis was that Potamogeton alpinus demonstrate the avoidance strategy. We analyzed architecture traits of the modules of this clonal plant from slow- and fast-flowing streams. In fast-flowing waters, the avoidance strategy of P. alpinus is reflected by the following: (1) the presence of floating leaves that stabilize the vertical position of the stem and protect the inflorescence against immersion; (2) elongation of submerged leaves (weakens the pressure of water); and (3) shoot diameter reduction and increase in shoot density (weakens the pressure of water, increases shoot elasticity), and by contrast in slow-water flow include the following: (4) the absence of floating leaves in high intensity of light (avoiding unnecessary outlays on a redundant organ); (5) the presence of floating leaves in low intensity of light (avoidance of stress caused by an insufficient assimilation area of submerged leaves).

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Potamogeton taxa proposed by J. F. Wolfgang and his collaborators

Cited by 24 publications

References 6 publications

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

First record ofPotamogeton×salicifoliusfor Italy, with isozyme evidence for plants collected in Italy and Sweden

The avoidance strategy of environmental constraints by an aquatic plant Potamogeton alpinus in running waters

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