Results 11 to 20 of about 309 (135)
Seed characters and their usefulness in the separation of Asteraceae species
Acta Scientiarum: Biological Sciences, 2015 Studies on seed structure of Asteraceae have received little attention of botanists. Seed structure in Asteraceae is analyzed to evaluate the usefulness of characters in the separation of species through the analysis of nine weedy species.
Michelli Fernandes Batista +3 more
doaj +2 more sources
Morfoanatomía del óvulo y la semilla en Turnera y Piriqueta (Turneraceae)
Botanical Sciences, 2013 Algunos caracteres morfológicos seminales tienen importancia taxonómica y han sido usados para diferenciar géneros y especies en la familia Turneraceae. Sin embargo, su anatomía fue estudiada en pocos taxones.
Ana María González +1 more
doaj +2 more sources
Turczaninowia, 2015 Comparative study of pollen and seed morphology of three species of Rhododendron L. subsect. Rhodorastrum (Maxim.) Cullen (Rh. dauricum L., Rh. mucronolatum Turcz., Rh. sichotense Pojark.) is performed.
I. M. Koksheeva, N. N. Naryshkina
doaj +1 more source
PLANTS, PEOPLE, PLANET, Volume 3, Issue 6, Page 694-702, November 2021., 2021 The watermelon (Citrullus lanatus subsp. vulgaris) is among the world's most important fruit crops. We here use C‐14 dating and morphometric analysis to test whether ancient seeds can be identified to species level, which would help document food expansion, innovation, and diversity in Northeastern Africa. We dated a Libyan seed to 6182–6001 calibrated
Katherine A. Wolcott +6 more
wiley +1 more source
Comparative anatomy and genetic bases of fruit development in selected Rubiaceae (Gentianales)
American Journal of Botany, Volume 108, Issue 10, Page 1838-1860, October 2021., 2021 Abstract Premise The Rubiaceae are ideal for studying the diversity of fruits that develop from flowers with inferior ovary. We aimed to identify morpho‐anatomical changes during fruit development that distinguish those derived from the carpel versus the extra‐carpellary tissues.
Héctor Salazar‐Duque +4 more
wiley +1 more source
TAXON, Volume 70, Issue 2, Page 324-338, April 2021., 2021 Abstract Tropical Asia is one of the centers of species diversity of flowering plants, in particular the coffee family (Rubiaceae). Prismatomerideae (the Psychotrieae alliance, subfamily Rubioideae) are a mostly Southeast Asian tribe encompassing four genera of shrubs and small trees (monospecific Gentingia and Motleyia, Prismatomeris with 16 spp ...
Sylvain G. Razafimandimbison +2 more
wiley +1 more source
Perfil lignoídico del tegumento de semillas de Araucaria angustifolia [PDF]
, 2017 The aim of this research was to quantify and identify the types of lignin and characterize its functionalization based on apparent physical resistance in each seed coat layers of Araucaria angustifolia. Each seed layer (exotesta, mesotesta and endotesta)
Sampaio, Danielle Affonso +4 more
core +2 more sources
Turczaninowia, 2018 The sculpture of the seeds surface and the anatomic structure of the seed coat of 35 species from 28 genera from 4 tribes of the Asteraceae: Arctotideae (Arctotis, Berkheya, Gazania), Cardueae (Acroptilon, Alfredia, Ancathia, Berardia, Carthamus, Cirsium,
E.V. Boyko, E.V. Novozhilova
doaj +1 more source
Polibotánica, 2022 El presente estudio es una contribución al conocimiento de la morfoanatomía, histoquímica y germinación de las semillas de Mammillaria parkinsonii procedentes de una población de Tolimán, Querétaro, que se caracteriza por una alta diversidad de ...
Yazmin Uribe Salazar
doaj +1 more source
Ontogeny of solasodine-containing mucilage layer inSolanum viarum Dunal, ploidy types [PDF]
, 1988 Berries of steroid-bearingSolanum viarum Dunal are exploited commercially in India as raw material by steroid industries for solasodine, a glycoalkaloid, present in the mucilaginous exotesta of the seed.
Krishnan, R. +2 more
core +3 more sources