Results 51 to 60 of about 5,005 (201)

N-demethyl-sauroxine, a novel Lycodine Group alkaloid from Huperzia saururus [PDF]

, 2013
The present study describes the isolation and identification of N-demethyl-sauroxine, a novel Lycopodium alkaloid obtained from Huperzia saururus (Lam.) Trevis. (Lycopodiaceae).
Agnese, Mariel, Cabrera, Jose Luis, Ortega, María Gabriela, Vallejo, Mariana Guadalupe   +3 more
core   +2 more sources

Criptógamos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP: pteridophyta: 13. Lycopodiaceae e 20. Selaginellaceae

Hoehnea
Neste trabalho são apresentados os dados referentes ao levantamento florístico das famílias Lycopodiaceae e Selaginellaceae no Parque Estadual das Fontes do Ipiranga (PEFI). Lycopodiaceae está representada na área por três gêneros (Huperzia, Lycopodiella
Jefferson Prado, Regina Yoshie Hirai
doaj   +1 more source

Differential use of nest materials and niche space among avian species within a single ecological community

Ecology and Evolution, Volume 14, Issue 9, September 2024.
We assessed differential use of nest materials among birds at a site in Massachusetts, USA. Proportional masses of all material types differed among species. Our study supports the notion that birds using the same environment have distinct niches in relation to the materials placed in their nests.
Michael E. Akresh, David Mandell, Peter P. Grima, David I. King, Kathryn Lauer   +4 more
wiley   +1 more source

Taxonomic differences between Pinus sylvestris and P. uncinata revealed in the stomata and cuticle characters for use in the study of fossil material [PDF]

, 2009
Taxonomic differences in the needle epidermis characteristics of Pinus sylvestris L. and Pinus uncinata Ramond ex DC. from two Iberian populations were sought; such information could help identify these species when pollen analysis and the inspection of ...
Garcia-Amorena Gomez del Moral, Ignacio, García Álvarez, Salvia, Morla Juaristi, Carlos, Solana Gutierrez, Joaquin   +3 more
core   +2 more sources

Linking topography, soil variability, and early successional vegetation in abandoned gold mines in the tropical rainforest of Colombia's Chocó Biogeographic region

Restoration Ecology, Volume 32, Issue 7, September 2024.
Soil fertility heterogeneity is one of the main factors affecting early recovery and plant succession toward a target plant community. This study examined the influence of topography on the diversity and composition of plant communities established in areas degraded by opencast mining in Chocó, Colombia.
Hamleth Valois‐Cuesta, Carolina Martínez‐Ruiz, Zulay Q. Valoyes   +2 more
wiley   +1 more source

El Androsacion vandellii en el Pirineo: Androsacetum pyrenaicae, nueva asociación de los extraplomos silíceos [PDF]

, 2000
Androsacion vandelli in the Pyrenees: Androsacetum pyrenaicae, a new community from the siliceous hoverhangs rocksEl Androsacion vandellii en el Pirineo: Androsacetum pyrenaicae, nueva asociación de los extraplomos ...
Benito Alonso, José Luis
core   +3 more sources

Photosynthate transfer from an autotrophic orchid to conspecific heterotrophic protocorms through a common mycorrhizal network

New Phytologist, Volume 243, Issue 1, Page 398-406, July 2024.
Summary The minute ‘dust seeds’ of some terrestrial orchids preferentially germinate and develop as mycoheterotrophic protocorms near conspecific adult plants. Here we test the hypothesis that mycorrhizal mycelial connections provide a direct pathway for transfer of recent photosynthate from conspecific green orchids to achlorophyllous protocorms ...
David J. Read, John Haggar, Emily Magkourilou, Emily Durant, David Johnson, Jonathan R. Leake, Katie J. Field   +6 more
wiley   +1 more source

Esporas triletes verrucosas de la Formación Lagarcito (Albiano?) Sierra de Guayaguas, Provincia de San Juan, Argentina. Análisis bioestratigráfico [PDF]

, 2013
Verrucate trilete spores from the Lagarcito Formation (Albian?) Sierra de Guayaguas, San Juan Province, Argentina. Biostratigraphic analysis. A detailed study of the systematics of thirteen species of verrucate trilete spores recovered from the Lagarcito
Mego, Natalia, Prámparo, Mercedes Beatriz   +1 more
core   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Lycopodiaceae

Rodriguésia
Resumo Este estudo trata dos táxons de Lycopodiaceae encontrados nas formações ferríferas da Serra dos Carajás, estado do Pará, com descrições, ilustrações, distribuição geográfica e comentários. Na área estudada foi registrada apenas Palhinhaea cernua.
Alexandre Salino, André Jardim Arruda
doaj   +1 more source

Insights into U‐to‐C RNA editing from the lycophyte Phylloglossum drummondii

The Plant Journal, Volume 119, Issue 1, Page 445-459, July 2024.
Significance Statement U‐to‐C RNA editing is only found in plants, and within plants, only in some hornworts, lycophytes and ferns. The unusual lycophyte Phylloglossum drummondii contains four U‐to‐C editing sites that can be matched with four putative U‐to‐C editing enzymes, making it a useful model for the study of this uncommon process.
Farley M. Kwok van der Giezen, Amy Viljoen, Leni Campbell‐Clause, Nhan Trong Dao, Catherine Colas des Francs‐Small, Ian Small   +5 more
wiley   +1 more source