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The hydrostatic gradient, not light availability, drives height-related variation in Sequoia sempervirens (Cupressaceae) leaf anatomy.
TLDR
That variation in leaf structure may be caused more by gravity than by light calls into question use of the terms "sun" and "shade" to describe leaves at the tops and bottoms of tall tree crowns.
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Megaphylls, microphylls and the evolution of leaf development.
  • A. Tomescu
  • Biology, Environmental Science
    Trends in plant science
  • 2009
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Carbon isotopes support the presence of extensive land floras pre-dating the origin of vascular plants.
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Why Are Bryophytes So Rare in the Fossil Record? A Spotlight on Taphonomy and Fossil Preservation
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Wetlands before tracheophytes: Thalloid terrestrial communities of the Early Silurian Passage Creek biota (Virginia)
Early Silurian (Llandoverian) macrofossils from the lower Massanutten Sandstone at Passage Creek in Virginia represent the oldest known terrestrial wetland communities. Fossils are preserved as…
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Origin of Equisetum: Evolution of horsetails (Equisetales) within the major euphyllophyte clade Sphenopsida.
TLDR
A combined approach to parsimony phylogenetic analyses to address relationships of 43 equisetalean species using a combination of morphological and molecular characters provides useful tests of hypotheses about overall phylogenetic relationships of euphyllophytes and foundations for future tests of molecular dates with paleontological data.
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Root evolution at the base of the lycophyte clade: insights from an Early Devonian lycophyte.
TLDR
The morphological relationships between stems, root-bearing axes and roots corroborate evidence that positive gravitropism and root identity were evolutionarily uncoupled in lycophytes, and challenge the hypothesis that roots evolved from branches of the above-ground axial system, suggesting instead that lyCophyte roots arose as a novel organ.
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Exploring the fossil history of pleurocarpous mosses: Tricostaceae fam. nov. from the Cretaceous of Vancouver Island, Canada.
TLDR
This new moss adds the first bryophyte component to an already diverse assemblage of vascular plants described from the Early Cretaceous at Apple Bay and, as the oldest representative of the Hypnanae, provides a hard minimum age for the group (136 Ma).
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Microconchid encrusters colonizing land plants: the earliest North American record from the Early Devonian of Wyoming, USA
Caruso, JA. & Tomescu, AM.F. 2012: Microconchid encrusters colonizing land plants: the earliest North American record from the Early Devonian of Wyoming, USA. Lethaia, Vol. 45, pp. 490–494. …
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Early evolution of the vascular plant body plan - the missing mechanisms.
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