Results 101 to 110 of about 4,525 (210)

Floral structure and systematics in four orders of rosids, including a broad survey of floral mucilage cells [PDF]

, 2018
Phylogenetic studies have greatly impacted upon the circumscription of taxa within the rosid clade, resulting in novel relationships at all systematic levels. In many cases the floral structure of these taxa has never been compared, and in some families,
Endress, P., Matthews, M.
core  

Establishment and role of mycorrhiza in plants [PDF]

, 2009
Mikoriza je simbioza korijenja biljaka i gljiva pri čemu dolazi do izmjene hranjivih tvari između biljke i gljive. Mikorizne gljive vjerojatno su bile važne u naseljavanju kopna biljkama.
Požgaj, Lidija
core   +2 more sources

Clethraceas argentinas

Lilloa, 1960
El autor considera la familia Clethraceae en su conjunto, dando la distribución geográfica en América del Sur. Se agregan claves y descripciones para las especies argentinas y se describe una nueva especie, Clethra maromensis, de la provincia de Salta.
M. Villa Carenzo
doaj  

Elaiophores: their taxonomic distribution, morphology and functions

Acta Botânica Brasílica
Elaiophores are floral glands that secrete non-volatile oils as a reward for their pollinators. Their secretions mediate a specialized interaction between oil-producing plants and a few species of oil-collecting bees - Apidae and Melittidae.
Clivia Carolina Fiorilo Possobom, Silvia Rodrigues Machado   +1 more
doaj   +1 more source

Morphology and angiosperm systematics in the molecular era [PDF]

, 2018
Several ways in which morphology is used in systematic and evolutionary research in angiosperms are shown and illustrated with examples: 1) searches for special structural similarities, which can be used to find hints for hitherto unrecognized ...
Endress, Peter
core  

Pouteria (Sapotaceae) na Estação Biológica de Santa Lúcia, ES, Brasil

Rodriguésia
Resumo Sapotaceae (Ericales) é uma família pantropical com 58 gêneros e cerca de 1.250 espécies sendo Pouteria o gênero mais rico com aproximadamente 200 espécies. No Brasil são registradas 124 espécies, das quais 52 são endêmicas.
Arnaldo Zanetti Mônico, Anderson Alves-Araújo   +1 more
doaj   +1 more source

Evolution of postglacial vegetation in the Western Laptev Sea region (Siberian Arctic) [PDF]

, 2007
On the basis of a detailed study of the pollen-spore spectra and a detailed radiocarbon chronology of a sediment core obtained from the western outer Laptev Sea shelf, the long-term and high-resolution changes of vegetation in the northwestern Laptev Sea
Bauch, Henning, Kassens, Heidemarie, Polyakova, Yelena I., Razina, V. V.   +3 more
core  

Una nueva especie de Souroubea (Marcgraviaceae, Ericales) de Colombia

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
Se describe e ilustra una nueva especie de Souroubea Aubl. de Colombia, la cual se reconoce fácilmente por sus nectarios reproductivos pedicelares blancos y por sus glándulas laminales conspicuas en ambas caras de las hojas. La nueva especie se conoce únicamente en una pequeña área andina de la vertiente amazónica del departamento de Caquetá.
Diego Giraldo-Cañas, Edwin Trujillo-Trujillo, Carlos Parra-O   +2 more
openaire   +1 more source

Carnivorous plants [PDF]

, 2010
Biljke mesožderke su izuzeci u biljnom svijetu. Imaju biljne organe i životni ciklus kao i svaka druga vrsta. Imaju listove, cvijetove i klorofil koji im daje zelenu boju.
Jelačić, Tihana
core   +2 more sources

Holocene Vegetation, Climate, and Carbon History on Western Kodiak Island, Alaska [PDF]

At Phalarope Pond, western Kodiak Island, a multidisciplinary study using pollen and spores, macrofossils, stable isotopes, and carbon accumulation provides the Holocene vegetation and climate history following the deglaciation that began over 16,000 cal
Mann, Daniel H., Nichols, Jonathan E., Peteet, Dorothy M.   +2 more
core   +1 more source