Results 101 to 110 of about 6,589 (226)

Características germinativas de sementes de Ananas ananassoides (Baker) L. B. Sm. (Bromeliaceae) = Germination characteristics of seeds of Ananas ananassoides (Baker) L. B. Sm. (Bromeliaceae)

open access: yesActa Scientiarum: Biological Sciences, 2010
Ananas ananassoides é uma planta perene com hábito de crescimento herbáceo e que tem enorme potencial paisagístico porque apresenta flores e brácteas com coloração exuberante e folhas com margens espinescentes que estão distribuídas em roseta. O objetivo
Maristela Rosália Anastácio   +1 more
doaj  

Genetic relationships and variation in reproductive strategies in four closely related bromeliads adapted to neotropical ‘inselbergs': Alcantarea glaziouana, A. regina, A. geniculata and A. imperialis (Bromeliaceae) [PDF]

open access: yes, 2017
Background and Aims Bromeliads (Bromeliaceae) adapted to rock outcrops or ‘inselbergs' in neotropical rain forests have been identified as suitable plant models for studying population divergence and speciation during continental plant radiations. Little
Barbará, Thelma   +5 more
core  

A Simulation Study on the Importance of Size‐related Changes in Leaf Morphology and Physiology for Carbon Gain in an Epiphytic Bromeliad [PDF]

open access: yes, 2017
This study addresses the question of how size‐related changes in leaf morphology and physiology influence light absorption and carbon gain of the epiphytic bromeliad Vriesea sanguinolenta.
REICHLING, PETER   +2 more
core  

Anomalous scales of Tillandsia usneoides (L.) L. (Bromeliaceae) exposed in the Metropolitan Region of Campinas, SP, Brazil as air pollution markers

open access: yesHoehnea
Tillandsia usneoides is an epiphytic bromeliad that has been used as a universal bioindicator. The species accumulates metals and presents foliar scale variations when exposed to air pollutants.
Patrícia Giampaoli   +5 more
doaj   +1 more source

Focal Spot, Winter 1976 [PDF]

open access: yes, 1976
https://digitalcommons.wustl.edu/focal_spot_archives/1016/thumbnail ...

core   +1 more source

Natural history contributions of the University of Glasgow Exploration Society to Scotland and the World [PDF]

open access: yes, 2017
Expeditions with a natural history focus have been organised by University of Glasgow staff and students since the 1930s. The educational benefits of such expeditions to students have been reported by Harper et al.
Broderick, Annette C.   +4 more
core  

Home - About - Disclaimer - Privacy