Results 31 to 40 of about 2,412 (147)

Anatomía de la madera de algunas especies del género Mimosa (Leguminosae)

open access: yesBotan‪ical Sciences, 1990
Se describen las características macroscópicas y microscópicas del xilema secundario de especies arbóreas de la serie Xantiae del género Mimosa: M. lactiflua con 3 variedades: var. lactiflua, var. psilocarpa y var. goldmanii, M.
Teresa Chehaibar, Rosaura Grether
doaj   +1 more source

Taxaceoxylon katuatenkum sp. nov. from the Koluel-Kaike formation (lower - middle eocene), Chubut, Argentina: a component of paleogene subtropical forests of Patagonia [PDF]

open access: yes, 2009
Se describe en este trabajo un fragmento de tallo silicificado, Taxaceoxylon katuatenkum sp. nov., coleccionado en la localidad Kilómetro 170, al SE de Chubut (Argentina).
Bellosi, Eduardo Sergio   +2 more
core  

Island influences on plant functional traits and trait–trait associations across species‐ and community‐scales

open access: yesNew Phytologist, Volume 250, Issue 4, Page 2176-2189, May 2026.
Summary The island rule predicts gigantism or dwarfism in body size of island species relative to their mainland counterparts. However, whether other functional traits shift and whether trait–trait associations on islands differ between species and community levels remains unclear. We measured 13 carbon‐ and water‐related functional traits in 37 shared
Yanjun Song   +8 more
wiley   +1 more source

Estudio anatómico de Hippocratea excelsa HBK. (Hippocrateaceae)

open access: yesActa Botanica Mexicana, 1998
Se presenta una descripción anatómica de hoja, xilema secundario y corteza del tallo y de la raíz de Hippocratea excelsa HBK. La corteza de esta especie, conocida popularmente como "cancerina", es usada de manera tradicional para el tratamiento de ...
Marcelina Graciela Villa Fern\u00E1ndez   +2 more
doaj  

Morphological modifications induced by Tetradiplosis panghitruz (Diptera: Cecidomyiidae) in stems of Prosopis caldenia Burkart (Fabaceae) [PDF]

open access: yes, 2014
En los tallos del caldén, Prosopis caldenia Burkart (Fabaceae) una especie recientemente descripta en el género Tetradiplosis Kieffer & Jörgensen (Diptera: Cecidomyiidae) induce agallas.
Alfonso, Graciela   +4 more
core  

Voltziales y pinales (= coniferales) de la formación Cortaderita (Triásico medio), Argentina, y su implicancia en la reconstrucción de las coníferas triásicas [PDF]

open access: yes, 2015
Fil: Bodnar, Josefina. División Paleobotánica. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Ruiz, Daniela Paula. División Paleobotánica. Museo Argentino de Ciencias Naturales Bernardino Rivadavia.
Artabe, Analía Emilia Eva   +4 more
core   +2 more sources

Novel roles of sulfur metabolism in stress‐controlled stomata aperture regulation

open access: yesNew Phytologist, Volume 250, Issue 3, Page 1460-1467, May 2026.
Summary Stomatal closure allows plants to conserve water by reducing transpiration during drought. Surprisingly, the assimilation of the macronutrient sulfur is intimately connected to the drought stress response. This Tansley insight will only briefly touch on the general impact of sulfate assimilation on the production of drought‐response metabolites.
Sheng‐Kai Sun   +2 more
wiley   +1 more source

Sommerxylon spiralosus from Upper Triassic in southernmost Paraná Basin (Brazil): a new taxon with taxacean affinity

open access: yesAnais da Academia Brasileira de Ciências, 2004
The anatoical description of silici?ed Gymnospermae woods from Upper Triassic sequences of southernmost Paraná Basin (Brazil) has allowed the identi?cation of a new taxon: Sommerxylon spiralosus n.gen. et n.sp.
Etiene F. Pires, Margot Guerra-Sommer
doaj   +1 more source

Histoloxía Vexetal [PDF]

open access: yes, 2010
Grao en Enxeñaría Técnica ForestalA Histoloxía Vexetal é o estudo dos tecidos que compoñen as plantas, a súa disposición e a súa función dentro delas. Constitúe o elo básico da organización das plantas superiores.
Vázquez Ruiz de Ocenda, Rosa Ana
core  

Differences in mycelial turnover and persistence of wood‐decay fungi at the microscale

open access: yesNew Phytologist, Volume 250, Issue 1, Page 577-590, April 2026.
Summary How long do fungal hyphae persist in the environment? And how does this differ between groups and species of fungi? Despite growing knowledge of fungal contributions to decomposition and soil carbon cycles, surprisingly little is known about the turnover of mycelia: What happens to fungal hyphae over time? And how this impacts different fungi's
Roos‐Marie I. J. van Bokhoven   +2 more
wiley   +1 more source

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