Results 11 to 20 of about 2,200 (191)
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 +1 more
doaj +2 more sources
Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]
Plant Environ InteractExponential 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 BotAbstract 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 +14 more
europepmc +2 more sources
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 +4 more
doaj +1 more source
Unraveling Biogeographic Boundaries Within the Sierra Madre Oriental, México: An Endemicity Analysis Using a Taxonomically Diverse Dataset. [PDF]
Ecol EvolWe 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 +5 more
europepmc +2 more sources
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 +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
Phylogeny and Geographic History of Annonaceae [PDF]
, 1997 Whereas Takhtajan and Smith situated the origin of angiosperms between Southeast Asia and Australia, Walker and Le Thomas emphasized the concentration of primitive pollen types of Annonaceae in South America and Africa, suggesting instead a Northern ...
Doyle, James A., Le Thomas, Annick
core +1 more source
The deepest splits in Chloranthaceae as resolved by chloroplast sequences [PDF]
, 2003 Evidence from the fossil record, comparative morphology, and molecular phylogenetic analyses indicates that Chloranthaceae are among the oldest lineages of flowering plants alive today. Their four genera (ca.
Renner, Susanne S., Zhang, Li-Bing
core +1 more source
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 +1 more
doaj +5 more sources