Results 31 to 40 of about 33,799 (304)

New Cytotoxic Sesquiterpenoids from Siegesbeckia glabrescens

open access: yesMolecules, 2015
Two new sesquiterpenoids, siegenolides A (1) and B (2), and two known sesquiterpenes 3 and 4 were isolated from Siegesbeckia glabrescens. Their structures were elucidated by spectroscopic analyses, and they were further evaluated for their cytotoxic ...
Qian Wu   +4 more
doaj   +1 more source

Novedades y consideraciones sobre el género Hieracium en la Cordillera Cantábrica, VIII [New species and data on the genus Hieracium L. (Compositae) in the Cantabrian Mountains (NW Spain), VIII] [PDF]

open access: yesFlora Montiberica, 2012
RESUMEN: Se describen 15 nuevas especies intermedias del género Hieracium L. (Compositae), recolectadas en la Cordillera Cantábrica, y se aportan datos nuevos para muchas otras especies del género poco o no conodidas en la zona hasta ahora.
Juan Antonio Alejandre Sáez   +2 more
doaj  

Beach impact study, Padre Island National Seashore [PDF]

open access: yes, 1976
Prepared for Office of Natural Science, Southwest Region, National Park Service, under contract CX70005044830 April 1976Vegetative differences between heavily and very lightly trafficked beaches show that more beach traffic correlates with quantitative ...
Behrens, E. W. (Earl William), 1935-   +2 more
core   +1 more source

Rhaponticum repens (Compositae), una nueva planta alóctona para la Península Ibérica

open access: yesCollectanea Botanica, 2011
Rhaponticum repens (Compositae), una nueva planta alóctona para la Península Ibérica.- Se cita por primera vez la especie Rhaponticum repens para la flora de la Península Ibérica.
J. López-Alvarado   +9 more
doaj   +1 more source

Nuevos registros del género Gamochaeta (Asteraceae: Gnaphalieae) en Ecuador

open access: yesBiota Colombiana, 2022
Gamochaeta cabrerae, G. simplicicaulis y G. subfalcata se citan por primera vez en Ecuador y se confirma la presencia de G. humilis. Estos nuevos registros se suman a las cuatro especies del género conocidas hasta el momento para el país, i.e., G ...
Susana Edith Freire   +3 more
doaj   +1 more source

Dos especies nuevas del género Onopordum L. del litoral atlántico (SW de España y NW de Marruecos). [PDF]

open access: yes, 2008
Two new species of genus Onopordum L. from the Atlantic coast (SW Spain and NW Morocco)Palabras clave. Onopordum, Compositae, costa atlántica, W Mediterráneo.Key words.
Balao, Francisco   +5 more
core   +5 more sources

Characterization of the complete chloroplast genome of Gerbera jamesonii Bolus in China and phylogenetic relationships

open access: yesMitochondrial DNA. Part B. Resources, 2019
Gerbera (Gerbera jamesonii Bolus) is one of the most popular ornamental flowers and one of the top five cut flowers worldwide. In this study, we presented the complete chloroplast genome of it using BGISEQ-500 sequencing.
Yong-Yan Zhang   +6 more
doaj   +1 more source

Cognitive Functioning in Vorinostat‐Treated Pediatric and Young Adult Patients Over the First 180 Days After Hematopoietic Stem Cell Transplant

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Cognitive and psychological difficulties could negatively interfere with treatment adherence and quality of life before and after hematopoietic stem cell transplant (HSCT). Methods to mitigate these changes may have positive effects on treatment success.
Kristen L. Votruba   +11 more
wiley   +1 more source

Biogeografia de Baccharis sect. Caulopterae (Asteraceae) no Rio Grande do Sul, Brasil

open access: yesRodriguésia
RESUMO Baccharis estende-se do Canadá ao extremo sul da América do Sul e a seção Caulopterae é sul-americana, com maior diversificação nos estados sul-brasileiros. Com o objetivo de discutir os padrões de distribuição de Baccharis sect.
Gustavo Heiden   +3 more
doaj   +1 more source

Not only size matters: achene morphology affects time of seedling emergence in three heterocarpic species of Anacyclus (Anthemideae, Asteraceae)

open access: yesAnales del Jardín Botánico de Madrid, 2013
The production of two or more distinct fruit types by an individual, i.e. heterocarpy, is considered as a mixed dispersal strategy in which a proportion of the offspring is able to colonize new sites, whilst others remain near the maternal location. Here,
Rubén Torices   +2 more
doaj   +1 more source

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