Results 51 to 60 of about 100,549 (352)

Synopsis: diversity and distribution of Ipomoea species (Convolvulaceae) in Ceará state, Brazil [PDF]

Rodriguésia
Due to the knowledge gaps about the representatives of Ipomoea in the state of Ceará, we present here the synopsis of this genus as part of the “Flora of Ceará: knowing to conserve” project.
Diego Santos, Leonardo de Sousa Rodrigues, Swami Leitão Costa, Elnatan Bezerra de Souza, Maria Teresa Buril, Maria Iracema Bezerra Loiola   +5 more
doaj   +1 more source

Disentangling Cuscuta identification in Brazil: a first taxonomic contribution to the northeast region species

Rodriguésia, 2020
Cuscuta is a genus of Convolvulaceae distributed worldwide and comprises about 200 species, of which 26 were reported to Brazil. They are characterized by being holoparasites, leafless, gamopetalous, bisexual and usually pentamerous flowers.
Silmara Cecília Nepomuceno, Maria Teresa Buril   +1 more
doaj   +1 more source

Efficient plot-based floristic assessment of tropical forests [PDF]

, 2003
The tropical flora remains chronically understudied and the lack of floristic understanding hampers ecological research and its application for large-scale conservation planning.
Chuspe Zans, M., Galiano Sanchez, W., Monteagudo, A.L., Nunez Vargas, P., Pena Cruz, A., Phillips, O.L., Rose, S., Timana, M., Vasquez Marti­nez, R., Yli-Halla, M.   +9 more
core   +1 more source

Pollen Morphology of Crucianella L. (Rubiaceae) Based on Light and Scanning Electron Microscope Data and Implications for Taxonomy

Microscopy Research and Technique, EarlyView.
This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk, Zelal Kücük, Gülşah Bağcıvan, Ruziye Daşkın   +3 more
wiley   +1 more source

Carbon Stock and Environmental Variations of Typical Plantations in Mufu Mountain in Hubei Province, China

Land Degradation &Development, EarlyView.
ABSTRACT Forest ecosystems play a critical role in the global carbon cycle. As a significant terrestrial carbon sink, plantations exhibit carbon stock patterns that are shaped by tree species composition, stand structure, and environmental conditions. Here, we investigated typical plantation types in the Mufu Mountain, Hubei Province.
Mingyang Ding, Yi Yang, Jiaoyang Xu, Shaoqiang Wang, Lunche Wang, Chunbo Huang   +5 more
wiley   +1 more source

Underground Lag: Fungal Community and Edaphic Legacies After Disturbance

Land Degradation &Development, EarlyView.
ABSTRACT Páramos are neotropical mountain ecosystems that regulate water and store large amounts of carbon, but are increasingly degraded by agriculture and grazing. Although native vegetation often recolonizes after abandonment, belowground recovery remains poorly understood.
Wilmer Dajhan Navarrete‐López, Arantzazu Molins, María Elena Solarte, Camila Enriquez‐Paz, Joshua Borràs, Josefina Bota, Elena Baraza   +6 more
wiley   +1 more source

Estrutura de um curso de taxonomia de campo: o modelo aplicado em Ubatuba, São Paulo Structure of taxonomy field course: the model applied at Ubatuba-São Paulo

Acta Botânica Brasílica, 1997
As atividades de campo são essenciais à formação de um bom taxonomista. Os problemas mais usuais das atividades didáticas no campo são: a) grande número de alunos; b) formação heterogênea e desequilíbrio de conhecimento dos participantes; c) repetições e
Hermógenes de F Leitão Filho, Ricardo R Rodrigues, Jorge Y Tamashiro, Dionete A Santin, Natália M Ivanauskas, Alexandre Salino   +5 more
doaj   +1 more source

Phyllocephalum keralense (Asteraceae) a new species from southern Western Ghats of Kerala, India

Nordic Journal of Botany, EarlyView.
A new species of Phyllocephalum is described and illustrated from Palakkad district of Kerala, India. The new species shows similarity to P. rangacharii but differs with respect to key floral traits, viz. ovoid shape of the capitula, involucral bracts in 3 series, inflated receptacle and ovoid 6‐ribbed ovary with 5–6 densely barbellate pappus setae ...
Arya Sindhu, Sojan Jose, Alex Philip Alen, Venugopalan Nair Saradamma Anilkumar, Veerankutty Suresh   +4 more
wiley   +1 more source

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

Rodriguésia
Resumo É apresentado o levantamento das espécies de Cordiaceae que ocorrem sobre as cangas da Serra dos Carajás, no estado do Pará. Dois gêneros e três espécies foram registrados: Cordia nodosa, C. exaltata e Varronia multispicata.
Maurício Takashi Coutinho Watanabe, Alice Lima Hiura, Matheus Guimarães Cardoso Nogueira   +2 more
doaj   +1 more source

Jungermanniales (Marchantiophyta) da Chapada da Ibiapaba, Ceará, Brasil Jungermanniales (Marchantiophyta) of the Ibiapaba Plateau, Ceará state, Brazil

Acta Botânica Brasílica, 2009
A Chapada da Ibiapaba, localiza-se ao norte do estado do Ceará, possuindo uma extensão de 110 km com alitudes variando entre 800 e 1100 m. No inventário florístico de briófitas realizado na área, foram encontradas 15 espécies de hepáticas folhosas ...
Hermeson Cassiano de Oliveira, Cid José Passos Bastos   +1 more
doaj   +1 more source