Results 21 to 30 of about 842 (182)

From leaves to labels: Building modular machine learning networks for rapid herbarium specimen analysis with LeafMachine2

Applications in Plant Sciences, Volume 11, Issue 5, September-October 2023., 2023
Abstract Premise Quantitative plant traits play a crucial role in biological research. However, traditional methods for measuring plant morphology are time consuming and have limited scalability. We present LeafMachine2, a suite of modular machine learning and computer vision tools that can automatically extract a base set of leaf traits from digital ...
William N. Weaver, Stephen A. Smith
wiley   +1 more source

Meta‐analysis of Red List conservation assessments of Mexican endemic and near endemic tree species shows nearly two thirds of these are threatened

PLANTS, PEOPLE, PLANET, Volume 5, Issue 4, Page 581-599, July 2023., 2023
Mexico's extraordinary tree diversity is threatened by the increasing demand for resources because of the tenfold population growth in the last century. The conservation status of trees, and both urban and rural livelihoods, are also negatively affected by agriculture, mining and tourism.
Marie‐Stéphanie Samain, Salvador Guzmán Díaz, Karina Machuca Machuca, Alejandra Celeste Dolores Fuentes, Ana Gabriela Zacarías Correa, Dagoberto Valentín Martínez, Fabián Augusto Aldaba Núñez, Rosario Redonda‐Martínez, Sara F. Oldfield, Esteban Manuel Martínez Salas   +9 more
wiley   +1 more source

Flora arbórea da bacia do rio Tibagi (Paraná, Brasil): Celastrales sensu Cronquist Tree flora of the Tibagi river basin (Paraná, Brazil): Celastrales sensu Cronquist

Acta Botânica Brasílica, 2007
Este trabalho estudou, por meio de coleções de herbários, os representantes arbóreos da ordem Celastrales sensu Cronquist, encontrados na bacia do rio Tibagi, estado do Paraná, Brasil. Esta bacia hidrográfica, subdividida em três zonas de norte para sul,
Ricardo Augusto Gorne Viani, Ana Odete Santos Vieira   +1 more
doaj   +1 more source

Notas sobre la flora argentina - II

Lilloa, 2021
El autor completa su información sobre Symplocos (Lilloa XXIII (1950) 341) y da una visión general de las Simarubaceae y las Icacinaceae presentes en Argentina.
Hermann Otto Sleumer
doaj  

Diversification of the stem vascular system in a clade of recent radiation and multiple habit transitions: The Bunchosia clade (Malpighiaceae). [PDF]

Am J Bot
Abstract Premise Within the Malpighiaceae, the Bunchosia clade is distinctive for its significant habit variation and abundance of different vascular variants. However, the processes underlying the diversification of the vascular system over time and the ontogenetic events involved remain unclear.
Quintanar-Castillo A, Amorim AM, Pace MR.   +2 more
europepmc   +2 more sources

Una reevaluación de la taxonomía de Mappia (Icacinaceae) utilizando datos ambientales

Acta Botanica Mexicana, 2020
Antecedentes y Objetivos: Mappia (Icacinaceae) es un género de cuatro especies que habitan Mesoamérica y las Antillas Mayores. El más reciente análisis filogenético del género basado en datos morfológicos apoyó la existencia de un clado continental ...
Rodrigo Duno de Stefano, Israel Loera, Diego Francisco Angulo   +2 more
doaj   +1 more source

CT scans of Icacinaceae fossils: Faboidea and Palaeophytocrene

, 2016
X-Ray micro-CT scans of Faboidea and Palaeophytocrene fossils (Icacinaceae) from the Early Eocene London Clay ...
Gregory W. Stull (3197712), Dan Sykes (1388397), Margaret E. Collinson (3197715), Steven R. Manchester (433852), Neil F. Adams (3197709)   +4 more
core   +2 more sources

A Narrative Review of Wild and Semiwild Edible Plants in Ethiopia: Agroecological Perspectives, Ethnic Diversity, Proximate Composition, and Phytochemical Analysis. [PDF]

Int J Food Sci
All over the world, wild edible plants are predominantly the sources of famine food. Ethiopia, with food‐insecure populations, needs such food‐supplementing plant groups. The current review article is aimed at presenting a compiled list of the species, showing the diversity of the species, and elaborating on their major threats and values.
Alemneh D.
europepmc   +2 more sources

Community Characteristics and Population Dynamics of an Endangered <i>Rhododendron nymphaeoides</i>. [PDF]

Ecol Evol
Rhododendron nymphaeoides is explicitly listed as an endangered species in the “the International Union for Conservation of Nature's Red List,” “The Red List of Rhododendrons,” “Red List of China's Higher Plants,” and “Threatened Species List of China's Higher Plants.” It is also listed as a provincial‐level key protected wild plant in Sichuan, with ...
Luo J, Dai X, Chen J, Yuan C, Wang H, Luo D.   +5 more
europepmc   +2 more sources

Volatile Constituents of the Stem and Root Barks of Engl

Natural Product Communications, 2007
The volatile oils obtained by hydrodistillation of the stem and root barks of Pyrenacantha staudtii Engl. (Icacinaceae) were analyzed for their constituents by Gas chromatography-Mass spectrometry (GC-MS).
Adebayo A. Lasisi, Isiaka A. Ogunwande, Tameka M. Walker, William N. Setzer   +3 more
doaj   +1 more source