Results 11 to 20 of about 2,167 (184)

ANATOMÍA FOLIAR Y MORFOLOGÍA DEL POLEN DE DRIMYS GRANADENSIS VAR. MEXICANA (WINTERACEAE: MAGNOLIALES)

Polibotánica, 1998
Se presenta un estudio de la anatomía foliar y morfología polínica de Drimys granadensis var. mexicana, un taxon poco conocido de las Winteraceae. Este taxon de afinidad austral es uno de los elementos del bosque mesófilo de algunos lugares desde México
Salvador Acosta Castellanos, Alejandra E. Vilela   +1 more
doaj   +2 more sources

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]

Plant Environ Interact
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Osozawa S.
europepmc   +2 more sources

Toward a phylogenomic classification of magnoliids. [PDF]

Am J Bot
Abstract Premise Magnoliids are a strongly supported clade of angiosperms. Previous phylogenetic studies based primarily on analyses of a limited number of mostly plastid markers have led to the current classification of magnoliids into four orders and 18 families. However, uncertainty remains regarding the placement of several families.
Helmstetter AJ, Ezedin Z, de Lírio EJ, de Oliveira SM, Chatrou LW, Erkens RHJ, Larridon I, Leempoel K, Maurin O, Roy S, Zuntini AR, Baker WJ, Couvreur TLP, Forest F, Sauquet H.   +14 more
europepmc   +2 more sources

Unraveling Biogeographic Boundaries Within the Sierra Madre Oriental, México: An Endemicity Analysis Using a Taxonomically Diverse Dataset. [PDF]

Ecol Evol
We provide boundaries of the Sierra Madre Oriental in Mexico through a multi‐taxa endemicity analysis. ABSTRACT The Sierra Madre Oriental (SMO) is a significant mountain range and one of Mexico's 14 biogeographical provinces. Its delimitation has been debated.
Goyenechea Mayer-Goyenechea I, Montiel-Canales G, Márquez J, Hornung-Leoni CT, Castillo-Cerón JM, Manríquez-Morán NL.   +5 more
europepmc   +2 more sources

Gynoecium diversity and systematics of the Magnoliales and winteroids [PDF]

Botanical Journal of the Linnean Society, 1997
Abstract Carpel and ovule structure was compared in representatives of all 11 families of the Magnoliales (Annonaceae, Canellaceae, Degeneriaceae, Eupomatiaceae, Himantandraceae, Magnoliaceae, Myristicaceae) and winteroids (Austrobaileyaceae, Illiciaceae, Schisandraceae, Winteraceae). Special attention was paid to features that are constant at family
ANTON IGERSHEIM, PETER K. ENDRESS
openaire   +2 more sources

Ontogeny of Different Tetrad Types in the Single Microsporangium of Mitrephora tomentosa (Annonaceae)

Diversity, 2023
Annonaceae, comprising approximately 107 genera and 2400 species, is the largest family among early-divergent Magnoliales. Previous studies have concentrated on the binding mechanism that holds together the four members of tetrads in Annonaceae. However,
Bingxin Li, Xiu Liu, Mei Cheng, Fengxia Xu, Haimin Liao   +4 more
doaj   +1 more source

Dual Isotope Analysis Reveals Phylogenetic Patterns and Novel Insights Into Methoxy Group Synthesis of Structural Biomolecules in Leaf and Woody Plant Tissues. [PDF]

Plant Cell Environ
ABSTRACT Stable carbon and hydrogen isotopes of wood methoxy groups (δ2Hmeth, δ13Cmeth), mainly sourced by structural biomolecules like lignin and pectin, provide important insights into climatic, hydrological and physiological conditions. This study systematically investigated species‐specific δ2Hmeth and δ13Cmeth variations in leaves and woody twigs ...
Wieland A, Schuler P, Saurer M, Vitali V, Greule M, Keppler F, Lehmann MM.   +6 more
europepmc   +2 more sources

Melanophthalma Motschulsky, 1866 (Coleoptera: Latridiidae) como visitante floral de Annona cherimola Miller, 1768 (Magnoliales: Annonaceae) en Chile central

Revista Chilena de Entomología, 2021
La polinización del chirimoyo (Annona cherimola Miller) es uno de los aspectos más críticos de este cultivo debido a la dicogamia protogínica. Estudios muestran que el chirimoyo es polinizado por insectos silvestres, principalmente coleópteros.
Álvaro Urbina, Víctor Vicencio, José I. Hormaza, Sophia Tobar, Luis O. Aguado, Jorge Lora, Camila García, John Labarca, Eduardo Gratacós   +8 more
doaj   +1 more source

Circumscription and phylogeny of the Laurales [PDF]

, 1999
The order Laurales comprises a few indisputed core constituents, namely Gomortegaceae, Hernandiaceae, Lauraceae, and Monimiaceae sensu lato, and an equal number of families that have recently been included in, or excluded from, the order, namely ...
Renner, Susanne S.
core   +1 more source

LEVANTAMENTO PRELIMINAR DOS HOSPEDEIROS DE DENDROPHTHORA E PHORADENDRON (SANTALACEAE) NO DISTRITO FEDERAL, BRASIL

Heringeriana, 2015
As ervas-de-passarinho dos gêneros Dendrophthora e Phoradendron apresentam uma distribuição neotropical, totalizando cerca de 360 espécies. No Brasil apenas Phoradendron é amplamente distribuí­do, encontrado sobre uma enorme diversidade de hospedeiros ...
Claudenir Simões Caires, Carolyn Elinore Barnes Proença   +1 more
doaj   +5 more sources