Neuropteris attenuata, a narrow-stemmed, leaning or lianescent seed fern from the Upper Pennsylvanian of Lower Saxony, Germany

Krings, Michael; Kerp, Hans

doi:10.1016/j.flora.2005.07.005

Cited by 13 publications

(11 citation statements)

References 18 publications

(21 reference statements)

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“…The only vessel-bearing lineage of extant gymnosperm, the Gnetales, comprise about 33 climbing species in the genus Gnetum (Won & Renner 2006). Some fern groups, such as Trichomanes (Dubuisson et al 2003) or the Lycopsids (Rowe & Speck 1997, 1998, or the extinct seeds ferns Medullosales (Dunn et al 2003;Krings & Kerp 2006;Wilson & Fisher 2011) provide examples of the climbing habit in tracheid-bearing species.…”

Section: Evolutionary Success Of Mesangiosperms Lianasmentioning

confidence: 99%

The evolution of angiosperm lianescence: a perspective from xylem structure‐function

Isnard¹,

Feild²

2014

Ecology of Lianas

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Section: Evolutionary Success Of Mesangiosperms Lianasmentioning

confidence: 99%

The evolution of angiosperm lianescence: a perspective from xylem structure‐function

Isnard¹,

Feild²

2014

Ecology of Lianas

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“…Laveinopteris fronds have also been interpreted as sun-leaves (see next section), although at least some species were probably quite small trees (e.g. Krings & Kerp 2006). …”

Section: Sun and Shade Leavesmentioning

confidence: 99%

The systematic and palaeoecological value of foliage anatomy in Late Palaeozoic medullosalean seed-plants

Cleal

Shute

2012

Journal of Systematic Palaeontology

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This paper reviews the anatomical evidence of medullosalean foliage known from cuticles and coal balls, and discusses what it tells us about the systematics and palaeoecology of the parent plants. Medullosalean foliage shows more diversity in epidermal anatomy than in any other group of gymnospermous seed-plants, especially in the configuration of subsidiary cells around the stomata, the detailed structure of the hairs, and the shapes of the cells. Diagnostic for the order are the fronds typically having dorsiventral pinnules supported by rachises with a dissected stele, resin canals in both rachises and pinnules, and distinctive epidermal hairs consisting of a single row of many cells. Foliage anatomy is of little value for distinguishing medullosalean families but is useful for distinguishing genera and species. Anatomy also provides insights into the autecology of the plants. A number of features previously regarded as xeromorphic are re-interpreted as adaptations to high-humidity conditions (stomata sunken or protected by papillae, papillae on lower surface of leaf). Different species could grow in either shaded or well-illuminated positions, indicated by the absence or presence of a hypodermis below the upper epidermis. Few species show evidence of defensive strategies against herbivory except possibly in juvenile fronds. Evidence from stomatal distribution and structure for determining variation in atmospheric CO 2 is equivocal but may indicate a rise in CO 2 levels in early Stephanian (latest Moscovian) times.

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“…The monopodial stem-petiole branching system with a subsequent petiole bifurcation is common in medullosans (Ramanuham et al, 1974;Wnuk and Pfefferkorn, 1984;Pryor, 1990;Laveine et al, 1993;Krings and Kerp, 1999). However, the petiole could be quite long and naked before its bifurcation (Laveine, 1997;Krings and Kerp, 2006). Naked, unbranched petioles attached to medullosan stems and associated with alethopterid pinnules have previously been documented from the Pennsylvanian of the Sydney Coalfield in Canada (Zodrow, 2002), and are comparable to the studied two-ordered axes in Plate I 1 and 2.…”

Section: Associated Naked Axesmentioning

confidence: 99%

Yangopteris ascendens (Halle) gen. et comb. nov., a climbing alethopterid pteridosperm from the Asselian (earliest Permian) Wuda Tuff Flora

Zhou

Wan

et al. 2021

Review of Palaeobotany and Palynology

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show abstract

Neuropteris attenuata, a narrow-stemmed, leaning or lianescent seed fern from the Upper Pennsylvanian of Lower Saxony, Germany

Cited by 13 publications

References 18 publications

The evolution of angiosperm lianescence: a perspective from xylem structure‐function

The evolution of angiosperm lianescence: a perspective from xylem structure‐function

The systematic and palaeoecological value of foliage anatomy in Late Palaeozoic medullosalean seed-plants

Yangopteris ascendens (Halle) gen. et comb. nov., a climbing alethopterid pteridosperm from the Asselian (earliest Permian) Wuda Tuff Flora

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