Results 71 to 80 of about 3,392 (247)

Rhodora [PDF]

open access: yes, 1976
Index v.51-75 ...
Fernald, Merritt Lyndon, 1873-1950   +2 more
core   +4 more sources

Nuevas citas de Asteraceae para la provincia de Catamarca (Argentina) New records of Asteraceae for the province of Catamarca (Argentina)

open access: yesBoletín de la Sociedad Argentina de Botánica, 2011
Se mencionan los siguientes nuevos registros de Asteráceas para la provincia de Catamarca, Argentina: Baccharis acaulis, B. boliviensis var. latifolia, B. flexuosa, B. glutinosa var. angustissima, B.
Susana E. Freire   +6 more
doaj  

Infrageneric Relationships and the Origin of the Hawaiian Endemic Genus Lipochaeta (Compositae) [PDF]

open access: yes, 1980
Infrageneric relationships of Lipochaeta were assessed by way of a controlled crossing program that produced 14 intrasectional and 5 intersectional hybrid combinations involving the two sections Aphanopappus and Lipochaeta.
Rabakonandrianina, Elisabeth
core  

Pollen morphology of Brazilian species of Verbesina L. (Heliantheae - Asteraceae)

open access: yesActa Botânica Brasílica, 2019
There are nine species of the plant genus Verbesina in Brazil, which are distributed in the Northeast, Center-West, Southeast and South regions of the country.
Giselle Lopes Moreira   +3 more
doaj   +1 more source

Asteraceae heliantheae 1

open access: yes, 1990
ilustraciones, fotografías, mapas El género Steiractinia fue propuesto por Sydney Fay Blake en 1915. Previamente en 1856, José Jerónimo Triana, en el Catálogo de su herbario ya había planteado la posibilidad de un nuevo género para tres ejemplares de Heliantheae que en el Sistema de Stephano Endlicher deberían estar ubicados después del género ...
Díaz Piedrahita, Santiago   +1 more
openaire   +1 more source

La lutte biologique contre d'ambroisie à feuilles d'armoise illustrée par l'exemple d'Ophraella communa : quels intérêts et quelles limites ? [PDF]

open access: yes, 2016
Introduite en France il y a plus de 150 ans, la progression sur le territoire d'Ambrosia artemisiifolia (ambroisie à feuilles d'armoise) semble inexorable.
Bilon, Rebecca   +5 more
core  

Novidades taxonômicas em Aldama (Asteraceae-Heliantheae)

open access: yesRodriguésia
Estudos recentes de dados moleculares evidenciaram que as espécies sul-americanas tradicionalmente tratadas em Viguiera Kunth deveriam ser transferidas para Aldama La Llave.
Mara Angelina Galvão Magenta   +1 more
doaj   +1 more source

Anatomia e histoquímica dos órgãos vegetativos de Siegesbeckia orientalis (Asteraceae) Anatomy and histochemistry of the vegetative organs of Siegesbeckia orientalis (Asteraceae)

open access: yesPlanta Daninha, 2004
Descreveu-se a anatomia dos órgãos vegetativos de S. orientalis, em estrutura primária, enfatizando a caracterização e histoquímica de suas estruturas secretoras.
D.B. Aguilera   +2 more
doaj   +1 more source

Flora da Bahia: Asteraceae – Tribo Heliantheae

open access: yesSITIENTIBUS série Ciências Biológicas, 2016
The taxonomic treatment of the Heliantheae (Asteraceae) from the state of Bahia, Brazil, is presented here. The study is based on 22 field trips and material from the most important Brazilian herbaria. The tribe is represented by 28 genera and 65 species in Bahia and Aspilia (15 species), Aldama (9) and Verbesina (5) are the most representative genera ...
Maria Alves, Nádia Roque
openaire   +2 more sources

Embryological features, pollen and seed viability of Arnica montana (Asteraceae) – a threatened endemic species in Europe [PDF]

open access: yes, 2016
The embryological features, mode of reproduction and reproductive capacity (pollen and seed viability) on two naturalized populations of Arnica montana in Bulgaria were studied. The embryological study shows that A.
Antonina Vitkova   +3 more
core   +2 more sources

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