By organism › Green plants › Dicranaceae › Dicranum majus

Observationobservedoriginal resultmeasured

Claim · model-written summary

Dicranum majus was regionally rare and previously unrecorded in the forest.

Taxon: Dicranum majusDicranum majuse0
Outcome: regionally rare and never previously recorded from the Knyszyńska Foreste0

Verbatim

e0
“Fuscocephaloziopsis catenulata, Porella platyphylla, Dicranum majus – bryophytes, regionally rare and never previously recorded from the Knyszyńska Forest”
✓ located verbatim in the source · abstract, characters 591–745

Title

Materiały do brioflory Polski północno-wschodniej. Mchy i wątrobowce rezerwatu Surażkowo (Puszcza Knyszyńska)

Mariusz Wierzgoń; Daniel Skowron Fragmenta Floristica et Geobotanica Polonica 2024. doi:10.35535/ffgp-2024-0004

Other claims from this paper (8)

Observation The reserve contained 95 moss species and one variety.
Observation The reserve contained 23 liverwort species.
Observation Forty recorded bryophyte species are protected.
Observation Seventeen recorded species are new to Knyszyńska Forest.
Observation Old forest indicator taxa formed a significant share of the reserve flora.
Observation Fuscocephaloziopsis catenulata was regionally rare and previously unrecorded in the forest.
Observation Porella platyphylla was regionally rare and previously unrecorded in the forest.
Observation Orthotrichum pulchellum was at the easternmost recorded extent of its Polish range.

Observationobservedoriginal resultmeasured

Claim · model-written summary

D. majus and D. polysetum are separated from the D. scoparium species complex.

Taxon: D. majus and D. polysetumDicranum polysetumDicranum majuse1
Outcome: separated from the complexe1

Verbatim

e1
“In contrast, D. majus and D. polysetum, as well as D. fuscescens and D. spadiceum (former varieties of D. scoparium), are separated from the complex”
✓ located verbatim in the source · abstract, characters 643–791

Title

What's in a Name? Disentangling the Dicranum scoparium Species Complex (Dicranaceae, Bryophyta)

Annick Lang; Michael Stech Systematic Botany 2014. doi:10.1600/036364414x680735

Other claims from this paper (7)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaf-character analysis revealed two distinct plant types.

Taxon: Dicranum majus Sm.Dicranum majuse1
Outcome: two distinct plant typese0

Verbatim

e0
“A principal components analysis based on six leaf characters scored in 82 specimens revealed two distinct plant types.”
✓ located verbatim in the source · abstract, characters 100–218

e1
“European Dicranum majus Sm.”
✓ located verbatim in the source · abstract, characters 72–99

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The mainly southern phenotype has bistratose upper lamina cells, dorsal projections and a dorsally rough costa.

Taxon: Dicranum majus Sm.Dicranum majuse1
Outcome: bistratose submarginal upper leaf lamina cells, numerous spine-like dorsal lamina projections, a costa that is dorsally rough far downe0
Qualifier: mainly of a relatively southern origine0

Verbatim

e0
“Plants with bistratose submarginal upper leaf lamina cells, numerous spine-like dorsal lamina projections, a costa that is dorsally rough far down and has two layers of guide cells in its basal part, and falcate or strongly falcate, long leaves are mainly of a relatively southern origin.”
✓ located verbatim in the source · abstract, characters 219–507

e1
“European Dicranum majus Sm.”
✓ located verbatim in the source · abstract, characters 72–99

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The mainly southern phenotype has two basal guide-cell layers and long falcate leaves.

Taxon: Dicranum majus Sm.Dicranum majuse1
Outcome: two layers of guide cells in its basal part, and falcate or strongly falcate, long leavese0
Qualifier: mainly of a relatively southern origine0

Verbatim

e0
“has two layers of guide cells in its basal part, and falcate or strongly falcate, long leaves are mainly of a relatively southern origin.”
✓ located verbatim in the source · abstract, characters 370–507

e1
“European Dicranum majus Sm.”
✓ located verbatim in the source · abstract, characters 72–99

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Northern specimens have a unistratose smooth upper lamina and a costa rough only above with one guide-cell layer.

Taxon: Dicranum majus Sm.Dicranum majuse1
Outcome: a unistratose, smooth upper leaf lamina, a costa that is dorsally rough only above and has one layer of guide cellse0
Setting: northern Europee0

Verbatim

e0
“Specimens with a unistratose, smooth upper leaf lamina, a costa that is dorsally rough only above and has one layer of guide cells, and with slightly curved to straight, short leaves were only collected in northern Europe.”
✓ located verbatim in the source · abstract, characters 508–730

e1
“European Dicranum majus Sm.”
✓ located verbatim in the source · abstract, characters 72–99

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Northern specimens have short slightly curved to straight leaves.

Taxon: Dicranum majus Sm.Dicranum majuse1
Outcome: slightly curved to straight, short leavese0
Setting: northern Europee0

Verbatim

e0
“with slightly curved to straight, short leaves were only collected in northern Europe.”
✓ located verbatim in the source · abstract, characters 644–730

e1
“European Dicranum majus Sm.”
✓ located verbatim in the source · abstract, characters 72–99

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend recognizing the two plant types at least as varieties.

Taxon: D. majusDicranum majuse0
Outcome: the two kinds of plants should be recognized at least at the variety levele0

Verbatim

e0
“Even if most authors do not formally recognize variation within D. majus, our results suggest that the two kinds of plants should be recognized at least at the variety level.”
✓ located verbatim in the source · abstract, characters 731–905

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Type material of D. majus var. orthophyllum belongs to the southern phenotype.

Taxon: D. majus var. orthophyllum A. Braun ex MildeDicranum majuse0
Outcome: belongs to the southern phenotypee0

Verbatim

e0
“Type material of D. majus var. orthophyllum A. Braun ex Milde, a name that was frequently used for northern North American plants, belongs to the southern phenotype.”
✓ located verbatim in the source · abstract, characters 1032–1197

Title

Variation inDicranum majusin central, western and northern Europe

Lars Hedenäs; Irene Bisang; Michael Lüth; et al. Journal of Bryology 2006. doi:10.1179/174328206x136296

Other claims from this paper (6)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

D. majus growth peaked at intermediate density under dry, high-light conditions.

Taxon: D. majusDicranum majuse0
Outcome: growth ratese0
Direction: peakede0
Comparator: an intermediate densitye0
Setting: dry environments under the high light levele0

Verbatim

e0
“in dry environments under the high light level, growth rates of D. majus and R. loreus peaked at an intermediate density”
✓ located verbatim in the source · abstract, characters 1051–1171

Title

TESTING FOR POSITIVE DENSITY-DEPENDENT PERFORMANCE IN FOUR BRYOPHYTE SPECIES

Bård Pedersen; Hans Martin Hanslin; Solveig Bakken Ecology 2001. doi:10.1890/0012-9658(2001)082[0070:tfpddp]2.0.co;2

Other claims from this paper (9)

Observation Shoot apex mortality was low.
Association Offshoot production generally decreased with shoot density.
Association Growth responses to density varied among species and environmental conditions.
Association R. loreus growth peaked at intermediate density under dry, high-light conditions.
Association Growth rate generally declined with density in humid or dark environments.
Association P. crista-castrensis growth decreased with density in most environments.
Association Density was not shown to affect P. asplenioides growth.
Association Relatively high light was necessary for aggregation to facilitate bryophyte growth.
Mechanism Light competition was inferred to limit shoot performance across densities and humidities.

Dicranum majus 31 claims

31 claims