Results 81 to 90 of about 2,644 (190)

La colección de preparados palinológicos de la Cátedra de Palinología de la Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP), Buenos Aires, Argentina [PDF]

open access: yes, 2014
Fil: Yañez, Agustina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo
Copello, Manuel   +13 more
core   +1 more source

Variation in aboveground biomass and necromass of two invasive species in the Atlantic rainforest, southeast Brazil Variação da biomassa e necromassa aérea de duas espécies invasoras na floresta atlântica, sudeste do Brasil

open access: yesActa Botânica Brasílica, 2009
This paper describes the variation of the above-ground biomass, necromass, and net above-ground primary production (NAGPP) of two weed species, Panicum maximum Jacquin (Poaceae) and Pteridium arachnoideum (Kaulf.) Maxon.
Rita Cássia Quitete Portela   +5 more
doaj   +1 more source

Flora y su funcionalidad en dos agroecosistemas de café (Coffea arabica L.) en Condega, Estelí, Nicaragua, 2016 [PDF]

open access: yes, 2017
Debido a los altos costos de manejo y contaminación en sistemas productivos convencional se da la necesidad de enfoques agroecológicos en la agricultura.
Castillo Corea, Brandon Rafael de Jesús   +1 more
core  

Pteridophyte flora of Ayer Hitam Forest Reserve, Selangor, Peninsular Malaysia [PDF]

open access: yes, 2001
A total of39 species ojpteridophyte in 22 genera and 15 families has been recorded in Ayer Hitam Forest Reserve, Puchong, Selangor. The list of species prepared was based on collections in study area and previous available data.
Damanhuri, Ahmad   +3 more
core  

The genusOdontosoria (Dennstaedtiaceae, Pteridophyta)in Cuba [PDF]

open access: yesWilldenowia, 2006
Abstract Caluff, M. G.: The genus Odontosoria (Dennstaedtiaceae, Pteridophyta) in Cuba. — Willdenowia 36 (Special Issue): 469–478. — ISSN 0511-9618; © 2006 BGBM Berlin-Dahlem. doi:10.3372/wi.36.36145 (available via http://dx.doi.org/) A new species, Odontosoria reyesii, known from a single locality in the province of Guantanamo, eastern Cuba, is ...
openaire   +1 more source

Invasion impact by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) on a neotropical savanna

open access: yesActa Botânica Brasílica, 2015
Whether management intervention is required to control biological invasions depends primarily on demonstrating species losses resulting from such invasions. Brackens of the Pteridium genus are currently regarded as a problem species that act as important
Natalia Guerin, Giselda Durigan
doaj   +1 more source

Vegetation of montane bogs in east-flowing catchments of northern New England, New South Wales [PDF]

open access: yes, 2013
The floristics of the montane bogs in east-flowing catchments of northern New England, north-eastern New South Wales (lat 28° 47’–31° 25’ S; long 151° 50’–152° 30’ E), are described from 62 full floristic survey sites (20 x 20 m in area).
Bell, Dorothy, Hunter, John T.
core  

Phytosociological analysis of the vegetation of Lagoon Beach, Tasmania [PDF]

open access: yes, 1975
The vegetation of the Lagoon Beach area is mapped and described. Classification and ordination of thirty-five randomly located quadrats, and central chi-squared distribution analysis of association between species, reveal three main species/stand groups.
Kirkpatrick, JB
core   +3 more sources

ATLAS DE LAS ESPORAS DE PTERIDÓFITOS DE CHIPAQUE (CUNDINAMARCA, COLOMBIA)

open access: yesCaldasia, 2006
Se describen las esporas de 53 especies de pteridófitas (helechos y plantas afines)agrupadas en 25 géneros y 17 familias, presentes en la vereda Marilandia, municipiode Chipaque, Cundinamarca.
CONTRERAS-DUARTE ANDRÉS RICARDO   +2 more
doaj  

Subspecies of Hypolepis rugosula (Dennstaedtiaceae; Pteridophyta) around the world: morphological and biogeographic perspectives

open access: yesActa Botânica Brasílica, 2014
The "Hypolepis rugosula complex" has been the subject of great debate among pteridologists: some have considered H. rugosula a single subcosmopolitan (or circum-Antarctic) species, whereas others have considered it a species-complex, encompassing several
Pedro Bond Schwartsburd, Jefferson Prado
doaj   +1 more source

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