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Pinus leptokrempfii, an Oligocene Relative of the Flat-Needled Pine P. krempfii (Pinaceae) from China: Implications for Paleogeographic Origin

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2021; 182 (5)

Premise of research. The geographic origin of Pinus krempfii Lecomte, an unusual pine endemic to Vietnam, is unknown, as are the fossil relatives of t......

An Extinct Fruit Species of Fabaceae from the Early Eocene of Northwestern Wyoming, USA

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2021; 182 (8)

Premise of research. The legume family, Fabaceae, diversified extensively and rapidly during the Paleogene. Although the fossil record of the family h......

Ovulate Cones of Schizolepidopsis ediae sp. nov. Provide Insights into the Evolution of Pinaceae

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2021; 182 (6)

Premise of research. The extinct conifer genus Schizolepidopsis is characterized by deeply bilobed ovuliferous scales bearing two adaxial seeds. Altho......

Ventilago (Rhamnaceae) Fruit from the Middle Eocene of Central Tibet, China

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2021; 182 (7)

Premise of research. The fossil record of Rhamnaceae is geographically widespread and ranges from the Cretaceous to the Pleistocene, but only a few fo......

Floral Organogenesis and Morphogenesis of Staphisagria (Ranunculaceae): Implications for the Evolution of Synorganized Floral Structures in Delphinieae

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2021; 182 (1)

Premise of research. Floral synorganization is a structural feature of many speciose angiosperm taxa and is considered a morphological innovation pavi......

Consistent Relationship between Field-Measured Stomatal Conductance and Theoretical Maximum Stomatal Conductance in C-3 Woody Angiosperms in Four Major Biomes

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (1)

Premise of research. Understanding the relationship between field-measured operating stomatal conductance (g(op)) and theoretical maximum stomatal con......

The Scaling of Genome Size and Cell Size Limits Maximum Rates of Photosynthesis with Implications for Ecological Strategies

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (1)

A central challenge in plant ecology is to define the major axes of plant functional variation with direct consequences for fitness. Central to the th......

The Middle Permian South Ash Pasture Assemblage of North-Central Texas: Coniferophyte and Gigantopterid Herbivory and Longer-Term Herbivory Trends

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (3)

Premise of research. The South Ash Pasture (SAP) Flora is an unusual gymnosperm-dominated plant assemblage from the Middle Permian (Guadalupian) of Te......

Molecular Phylogenetics of Ligusticum (Apiaceae) Based on nrDNA ITS Sequences: Rampant Polyphyly, Placement of the Chinese Endemic Species, and a Much-Reduced Circumscription of the Genus

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (3)

Premise of research. Earlier molecular systematic studies revealed that the genus Ligusticum is polyphyletic, with its members allied with representat......

Endocarps of Pyrenacantha (Icacinaceae) from the Early Oligocene of Egypt

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (4)

Premise of research. The fossil record of Pyrenacantha (Phytocreneae tribe, Icacinaceae) includes well-documented species from the Paleogene of North ......

The History of Herbivory on Sphenophytes: A New Calamitalean with an Insect Gall from the Upper Pennsylvanian of Portugal and a Review of Arthropod Herbivory on an Ancient Lineage

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (4)

Premise of research. Sphenophytes are a modestly diverse lineage of vascular plants with a persistent record extending from the late Paleozoic to the ......

Red and Silver Maples in the Neogene of Western North America: Fossil Leaves and Samaras of Acer Section Rubra

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (5)

Premise of research. Acer leaf and samara fossils are abundant and readily recognized in the Cenozoic of western North America. Inferences as to which......

A Small Heterophyllous Vine Climbing on Psaronius and Cordaites Trees in the Earliest Permian Forests of North China

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (6)

Premise of research. Climbing plants are important components of modern-day tropical forests and primarily comprise angiosperms, but in Paleozoic trop......

Inflorescence and Flower Development inOrchidantha chinensisT. L. Wu (Lowiaceae; Zingiberales): Similarities to Inflorescence Structure in the Strelitziaceae

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (7)

Premise of research. The monotypic Lowiaceae remains the least-known family in the plant order Zingiberales, yet it may hold an important key to unrav......

The Chloroplast Genome ofSalvia: Genomic Characterization and Phylogenetic Analysis

期刊: INTERNATIONAL JOURNAL OF PLANT SCIENCES, 2020; 181 (8)

Premise of research. Previous studies based on plastid fragments and/or nuclear ribosomal DNA have had limited success resolving relationships within ......

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