Results 21 to 30 of about 4,613 (143)

Genetic Diversity, Phylogenetics and Molecular Systematics of Guizotia Cass. (Asteraceae) [PDF]

open access: yes, 2007
The genus Guizotia belongs to the tribe Heliantheae in the family Asteraceae. It has been placed under different subtribes. The genus has its center of origin, distribution and genetic diversity in Ethiopia, where G.
Geleta, Mulatu
core  

Andean Origin and Diversification of the Genus Perezia, an Ancient Lineage of Asteraceae [PDF]

open access: yes, 2015
Fil: Apodaca, María José. División Plantas Vasculares. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Crisci, Jorge Víctor. División Plantas Vasculares. Facultad de Ciencias Naturales y Museo. Universidad Nacional
Apodaca, María José   +2 more
core   +1 more source

Island time and the interplay between ecology and evolution in species diversification. [PDF]

open access: yes, 2015
Research on the dynamics of biodiversity has progressed tremendously over recent years, although in two separate directions - ecological, to determine change over space at a given time, and evolutionary, to understand change over time.
Gillespie, Rosemary G
core   +1 more source

Rhodora [PDF]

open access: yes, 2001
Index v.76-100 ...
Fernald, Merritt Lyndon, 1873-1950   +2 more
core   +1 more source

PALYNOLOGICAL STUDY OF THE SELECTED SPECIES IN CERTAIN GENERA OF THE FAMILY COMPOSITAE (ASTERACEAE)

open access: yesSABRAO journal of breeding and genetics
The contemporary study examined several wild species of dicotyledons developing in the Samawa Desert in Southern Iraq. The various characteristics of these species’ assessment used a light microscope to isolate the species from each other and better ...
Mbh Almosawi
semanticscholar   +1 more source

Notes on the Asteraceae of Sumatera [PDF]

open access: yes, 2002
An account of the tribe composition, endemic taxa, comparison with adjacent areas and weedy Asteraceae of Sumatera is given. Based on the records of January 2000, there are 133 species of 74 genera in 11 tribes.
TJITROSOEDIRDJO, S. S. (SRI)
core   +1 more source

Rediscovering the scientific and didactic value of minor herbarium collections: the seeds and fruits collection by Gustavo Bonaventura [PDF]

open access: yes, 2018
Seeds and fruits collections are very important from a systematic point of view and represent useful references in several disciplines and research fields.
Abbate, G.   +5 more
core   +1 more source

Aphids associated with shrubs, herbaceous plants and crops in the Maltese Archipelago (Hemiptera, Aphidoidea) [PDF]

open access: yes, 2011
A survey of the aphids associated with Maltese shrubs, herbaceous plants and crops was carried out. Sixty six aphid species were recorded from more than 90 species of host plants.
Azzopardi, Erika   +6 more
core  

Discovery of germacrene A synthases in Barnadesia spinosa: The first committed step in sesquiterpene lactone biosynthesis in the basal member of the Asteraceae [PDF]

open access: yes, 2016
The Andes-endemic Barnadesioideae lineage is the oldest surviving and phylogenetically basal subfamily of the Asteraceae (Compositae), a prolific group of flowering plants with world-wide distribution (∼24,000 species) marked by a rich diversity of ...
Faraldos, Juan A.   +5 more
core   +1 more source

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