Results 51 to 60 of about 539 (130)

Revision of Manettia (Rubiaceae) in Paraguay

Nordic Journal of Botany, Volume 2026, Issue 2, February 2026.
Manettia Mutis is a Neotropical genus comprising over 100 species, many of which are only known from their original descriptions or, at most, from revisions dating back over 100 years. Recent review studies have remained unpublished for several years. Conventional taxonomic methods are followed.
Silvana Yasmin Gauto, Ana Maria Gonzalez, Roberto Manuel Salas   +2 more
wiley   +1 more source

Flower, seed, and fruit development in three Tunisian species of Polygonum: Implications for their taxonomy and evolution of distyly in Polygonaceae.

PLoS ONE, 2020
Polygonum is the largest genus of Polygonaceae and 5 species are reported in Tunisia. In order to characterized flower, seed, and fruit development in Polygonum, flower and fruit of Polygonium equisetiforme (var. graecum and peyerinhoffi), P.
Maher Mahmoudi, Fayçal Boughalleb, Giuseppe Pellegrino, Raoudha Abdellaoui, Nizar Nasri   +4 more
doaj   +1 more source

A pan‐European citizen science study shows population size, climate and land use are related to biased morph ratios in the heterostylous plant Primula veris

Journal of Ecology, Volume 114, Issue 1, January 2026.
A large‐scale citizen science study involving thousands of cowslip (Primula veris) observations from all over Europe revealed an unexpected prevalence of S‐morphs over L‐morphs, which was influenced by climatic as well as land use factors. Furthermore, general morph ratios were often unbalanced with the strongest shifts occurring in smaller populations.
Tsipe Aavik, Triin Reitalu, Marianne Kivastik, Iris Reinula, Sabrina Träger, Evelyn Uuemaa, Marta Barberis, Arjen Biere, Sílvia Castro, Sara A. O. Cousins, Anikó Csecserits, Eleftherios Dariotis, Živa Fišer, Grzegorz Grzejszczak, Cuong Nguyen Huu, Kertu Hool, Hans Jacquemyn, Margaux Julien, Marcin Klisz, Alexander Kmoch, Nikos Krigas, Attila Lengyel, Michael Lenhard, Desalew M. Moges, Zuzana Münzbergová, Ülo Niinemets, Baudewijn Odé, Hana Pánková, Meelis Pärtel, Ricarda Pätsch, Theodora Petanidou, Jan Plue, Radosław Puchałka, Froukje Rienks, Ioulietta Samartza, Julie K. Sheard, Bojana Stojanova, Joachim P. Töpper, Georgios Tsoktouridis, Spas Uzunov, Martin Zobel   +40 more
wiley   +1 more source

Characterization of 24 microsatellite markers in Primula chungensis (Primulaceae), a distylous–homostylous species, using MiSeq sequencing

Plant Diversity, 2016
Primula chungensis is a species with considerable floral and mating-system variation, including distylous (outcrossing), homostylous (selfing) and mixed populations that contain both outcrossing and selfing forms.
Wei Zhou, Haidong Li, Zhikun Wu, Spencer C.H. Barrett, Dezhu Li, Hong Wang   +5 more
doaj   +1 more source

The island syndrome in plants on New Zealand's outlying islands: a review

New Zealand Journal of Botany, Volume 63, Issue 5, Page 2300-2324, December 2025.
ABSTRACT The island syndrome is defined as a suite of predictable and consistent differences between island and mainland organisms. In seed plants, much of what we know about the island syndrome comes from work in the Southwest Pacific, which is comprised of the three main islands of New Zealand and ten surrounding archipelagos.
Riccardo Ciarle, Kevin C. Burns
wiley   +1 more source

From distyly to stigma-height dimorphism: phylogenetic insights into the evolutionary breakdown of distyly in Jasminum

Background and Aims Distylous polymorphisms (distyly) are adaptations for plants to improve efficiency of cross-pollination and reduce pollen wastage.
Kai Zhang, Tieyao Tu, Miaomiao Shi, Shijin Li, Zhonghui Ma, Yu Zhang, Xia Peng, Xiangping Wang, Zhongtao Zhao, Dianxiang Zhang, Shiqiao Chen, Jianyu Zhang   +11 more
core   +1 more source

Domestication During Restoration: Unintentional Selection During Eight Generations of Wild Seed Propagation Reduces Herkogamy, Dichogamy and Heterozygosity in Clarkia pulchella

Molecular Ecology, Volume 34, Issue 24, December 2025.
ABSTRACT Seed production on native seed farms has increased to meet the rising demand for plant material for restoration. Although these propagation efforts are necessary for restoration, cultivating wild populations may also result in unintentional selection and elicit evolutionary changes that mimic crop domestication, essentially turning these ...
Julie R. Etterson, Paige Fliehr, Riley Pizza, Briana L. Gross   +3 more
wiley   +1 more source

Risk of genetic vulnerability and aspects of the reproductive biology of Psychotria ipecacuanha (Rubiaceae), a threatened medicinal plant species of Brazilian forests

Acta Botânica Brasílica
Psychotria ipecacuanha, commonly known as Ipeca, is a medicinal plant of pharmacological and economic value. The species is distylous; it has populations with two floral morphs, one with long and one with short styles.
Patrícia Campos da Silva, Talita Oliveira Nascimento, Willian Krause, Douglas Siqueira de Almeida Chaves, Celice Alexandre Silva   +4 more
doaj   +1 more source

Influence of sex‐organ positions on pollen transfer and self‐interference in plants with stylar polymorphisms: An experimental approach using three‐dimensional printed flowers

Functional Ecology, Volume 39, Issue 9, Page 2526-2538, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Heterostylous plants are defined by the reciprocal positioning of stigmas and anthers in floral morphs—a trait proposed by Darwin to enhance the efficiency of disassortative (intermorph) pollen transfer.
Victoria Ferrero, Luis Navarro, James D. Thomson, Spencer C. H. Barrett   +3 more
wiley   +1 more source

TEMPERATURE AND HUMIDITY AFFECT POLLEN VIABILITY AND MAY TRIGGER DISTYLY DISRUPTION IN THREATENED SPECIES

, 2021
Within the ongoing trend of rapid climate changes there is an urgent need to assess the vulnerability of the endangered species for evaluating their conservation status and planning effective actions.
Sandro Strumia, Iovane M., Maurizio Iovane, Aronne G., Giovanna Aronne, Strumia S.   +5 more
core   +1 more source