Results 81 to 90 of about 14,174 (274)

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration

Plant-Environment Interactions, Volume 6, Issue 5, October 2025.
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‐
Soichi Osozawa
wiley   +1 more source

The use of chloroplast genome sequences to solve phylogenetic incongruences in Polystachya Hook (Orchidaceae Juss) [PDF]

, 2018
Background: Current evidence suggests that for more robust estimates of species tree and divergence times, several unlinked genes are required. However, most phylogenetic trees for non-model organisms are based on single sequences or just a few regions ...
Acosta, Barros, Bräutigam, Capella-Gutiérrez, Carstens, Chang, Christenhusz, Cribb, Cronn, Dressler, Dressler, Eaton, Edwards, Freudenstein, Gustafsson, Górniak, Joly, Kamneva, Katoh, Kelchner, Kelchner, Kim, Kraenzlin, Lemmon, Lemmon, Li, Li, Luo, Mamanova, Marshall, McCormack, Michel, Mort, Mytnik-Ejsmont, Parks, Peraza-Flores, Pfeil, Rambaut, Rambaut, Ramírez, Ramírez, Ronquist, Rupp, Russell, Russell, Russell, Shaw, Shaw, Shaw, Small, Smith, Sousa, Steel, Stephens, Summerhayes, Summerhayes, Särkinen, Toor, Tsitrone, Van den Berg, Weitemier   +60 more
core   +2 more sources

Unexpected spatial aggregation between two species of hummingbirds and their inconsistent spatial interactions with native and exotic plants in an urban ecological reserve

Ibis, Volume 167, Issue 4, Page 927-944, October 2025.
Hummingbirds play an important role as pollinators and are one of the primary examples of animal–plant coevolution. However, factors such as land‐use change, urbanization, exotic species introductions and the disappearance of native plants can negatively affect the persistence of hummingbird populations.
Gonzalo A. Ramírez‐Cruz, Israel Solano‐Zavaleta, J. Jaime Zúñiga‐Vega, P. Montserrat Vilchis‐Domínguez, Mariana Palencia‐Martínez   +4 more
wiley   +1 more source

Two new records for the flora of Uzbekistan from south-west Tian-Shan

Journal of Asia-Pacific Biodiversity, 2018
The Republic of Uzbekistan is a Central Asian country with rich native flora. The flora of Uzbekistan accounts more than 4,374 species of vascular plants, but the check-list is still incomplete because the result of field studies is still-found new ...
Tojibaev Komiljon, Farkhod Karimov, Ibrokhim Azimov, Kaesun Chang, Chang-gee Jang   +4 more
doaj   +1 more source

Echeveria andreae (Crassulaceae), una especie nueva de las montañas de la Mixteca alta, Oaxaca, México

Revista Mexicana de Biodiversidad, 2022
Se describe e ilustra a Echeveria andreae (Crassulaceae), una nueva especie endémica a las montañas de la Mixteca Alta, estado de Oaxaca, México. La nueva especie está relacionada con Echeveria subcorymbosa por el tipo de inflorescencia en racimo, pero ...
Jerónimo Reyes-Santiago, Luis Emilio de la Cruz-López   +1 more
doaj   +1 more source

Kalanchoe blossfeldiana Kalanchoe, Christmas Kalanchoe, Madagascar Widow's-thrill

EDIS, 2007
This document provides a detailed overview of Kalanchoe blossfeldiana, commonly known as kalanchoe, Christmas kalanchoe, or Madagascar widow’s-thrill.
Edward Gilman
doaj   +1 more source

New Combinations in Phedimus (Crassulaceae)

Novon, 2000
During the preparation of the account of the Crassulaceae for the Flora of China, Volume 8, it was decided that Phedimus Rafinesque should be separated from Sedum L. It is therefore necessary to publish new combinations in Phedimus for three varieties and one species previously recognized in Sedum: R aizoon (L.) 't Hart var.
Bruce M Bartholomew, Nicholas J. Turland, Hideaki Ohba, Fu Kunjun   +3 more
openaire   +3 more sources

The origin and diversification of Amaryllidaceae: A phylogenetic and biogeographic analysis

American Journal of Botany, Volume 112, Issue 9, September 2025.
Abstract Premise Previous angiosperm‐wide studies estimated that the geophytic family Amaryllidaceae diverged in Africa 87.00–46.77 million years ago (mya), spanning the Cretaceous and Palaeogene periods, including multiple important climatic and geological events.
Zoë H. Dennehy‐Carr, Kálmán Könyves, Chris Yesson, John C. David, Alastair Culham   +4 more
wiley   +1 more source

Морфологические особенности видов и сортов подсемейства Sedoideae Berger (Crassulaceae DC.) в условиях интродукции на юго-западе Черноземья [PDF]

, 2012
Проведен морфологический анализ побеговых систем модельных видов в среднегенеративном онтогенетическом состоянии видов и сортов подсемейства Sedoideae Berger (Crassulaceae DC.) в условиях интродукции на юго-запад Черноземья (роды Sedum, Phedimus ...
Орлова, О. Н., Сорокопудова, О. А.   +1 more
core  

Kalanchoë blossfeldiana, a new host for Sonchus yellow net virus [PDF]

The agent causing chlorotic spots in Kalanchoë blossfeldiana `Isabella¿ was investigated. A virus isolated from this naturally infected kalanchoë was mechanically transmissible to several indicator plants.
Balen, E., van, Bouwen, I., Schoen, C.D., Vlugt, R.A.A., van der   +3 more
core   +2 more sources