Results 31 to 40 of about 518 (158)

Two peculiar new species of Heteranthera Ruiz & Pavón (Pontederiaceae) from Brazil, with notes on inflorescence architecture in the family

PhytoKeys, 2017
Two new and peculiar species of Heteranthera are herein described. Heteranthera catharinensis is unique in the genus due to its glomerulate, many-flowered inflorescences, in which the flowers are restricted to the base and apex of the cincinni.
Marco O. O. Pellegrini, Charles N. Horn
doaj   +3 more sources

Disassortative mating in tristylous Eichhornia paniculata (Pontederiaceae) [PDF]

Heredity, 1987
Populations of the tristylous, self-compatible diploid Eichhornia paniculata (Spreng.) Solms. (Pontederiaceae) display wide variation in floral traits likely to influence the mating system. Progeny tests of open-pollinated plants collected from two populations in N.E.
S C H Barrett, A H D Brown, J S Shore
openaire   +1 more source

Pontederia cordata Pickerel Weed

EDIS
This document provides an overview of the pickerel weed (Pontederia cordata), a native aquatic plant found in Florida and other parts of eastern North America.
Edward Gilman
doaj   +1 more source

Floral adaptation and modular trait evolution associated with a shift from bee to hummingbird pollination

Plant Biology, EarlyView.
By comparing floral trait variation, integration and modularity in two sister species of Neotropical Costus with a pollination shift, we show that, despite pollination syndrome divergence, both species exhibit low floral variation and functional modularity, consistent with pollinator‐driven selection on traits mediating pollen transfer efficiency and ...
P. Juárez, K. M. Kay
wiley   +1 more source

Seasonal variation in wild pig (Sus scrofa) diet revealed by DNA metabarcoding

Wildlife Society Bulletin, Volume 50, Issue 1, March 2026.
Using DNA metabarcoding of fecal samples, we investigated the diet of wild pigs at an extensive bottomland hardwood forest ecosystem within Felsenthal National Wildlife Refuge in Southern Arkansas. We found that wild pig diet was highly diverse and included at least 74 plant families and 106 genera and 23 species of vertebrates.
Kenneth C. Wilson, Scott J. Chiavacci, Caleb P. Roberts, Brett A. DeGregorio   +3 more
wiley   +1 more source

Expansion of the distribution range of angiosperm species for the states of Maranhão and Tocantins, Brazil, through a territorial action plan [PDF]

Check List
We expand the geographical distribution of 10 angiosperm species in Maranhão and Tocantins states. The species were collected during two field expeditions carried out by the Territorial Action Plan for the conservation of endangered species of
Lucas C. Marinho, André V. Scatigna, Amanda L. Garcia, Ellen Thamara S. Castro, Gabriela Amorim, Fabio A. Silva, Jone Clebson R. Mendes, Karena M. Pimenta, Natércia Camille V. Feitosa, Alessandro W.C. Ferreira   +9 more
doaj   +3 more sources

Systematic Floral Anatomy of Pontederiaceae

Aliso, 2006
Twenty species of Pontederiaceae and six species of the outgroup families Haemodoraceae and Philydraceae were investigated with regard to floral anatomy, using standard histological methods and graphic reconstructions. Variation is described in several features, including functional carpel number, the distribution of floral aerenchyma, the presence of ...
Michael Simpson, Darren Burton
openaire   +2 more sources

Landscape Genomics and Evolutionary History of Megamelus scutellaris, a Biocontrol Agent of the Invasive Water Hyacinth (Pontederia crassipes)

Evolutionary Applications, Volume 19, Issue 2, February 2026.
ABSTRACT Understanding the evolutionary history of biological control agents in their native ranges is crucial for improving their selection, establishment, and performance across environmentally diverse regions. Phytophagous insects that specialize on aquatic plants offer particularly valuable models, as their evolutionary trajectories may be shaped ...
Nicolas A. Salinas, Daniel Poveda‐Martínez, Marcela S. Rodriguero, Melissa C. Smith, María E. Brentassi, Alejandro J. Sosa   +5 more
wiley   +1 more source

Yield of Short Duration Drought Tolerant Transplant Aman Rice Varieties as Influenced by Integrated Nitrogen and Weed Management Practices

Advances in Agriculture, Volume 2026, Issue 1, 2026.
Rice productivity varies substantially across rice varieties along with judicious nitrogenous fertilizer and weed management (WM) practices. At AFL, Bangladesh Agricultural University, we tested two cultivars of short‐duration drought‐tolerant T. aman (autumn) rice, Bangladesh Rice Research Institute (BRRI) dhan66 and BRRI dhan71, and how different ...
Kazi Ashika Mahmuda Onna, Shanta Islam, Sinthia Afsana Kheya, Md. Shafiqul Islam, Sabina Yeasmin, Md. Abdus Salam, Khaled F. M. Salem   +6 more
wiley   +1 more source

Anatomy of the root of eight species of emergent aquatic macrophytes from the upper Paraná river, Paraná State, Brazil floodplain - doi: 10.4025/actascibiolsci.v32i3.5509

Acta Scientiarum: Biological Sciences, 2010
The upper Paraná River floodplain is characterized by the existence of several aquatic and transitional habitats between the aquatic and terrestrial environment, influencing the presence and distribution of aquatic macrophytes.
Angela Maria Marques Sanches Marques, Ismar Sebastião Moscheta   +1 more
doaj   +1 more source