Results 61 to 70 of about 516 (122)

Sexual organs of Sarcotheca macrophylla Blume (Oxalidaceae), an endemic species of Borneo with two floral types confirmed as heterostyly

open access: yesJournal of Asia-Pacific Biodiversity
: Sarcotheca macrophylla Blume (Oxalidaceae), an endemic plant species to Borneo, consists of short-styled (S-morph) and long-styled (L-morph) flowers, referred to as heterostyly.
Esthi Liani Agustiani   +4 more
doaj   +1 more source

Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands

open access: yesScientific Reports, 2018
Obligate out-breeding plants are considered relatively disadvantageous comparing with self-breeding plants when colonizing oceanic islets following long-distance dispersal owing to mate and pollinator limitation.
Yuanqing Xu   +3 more
doaj   +1 more source

Aspects related to floral morphology and pollen viability for the pollination of self-compatible and self-incompatible pitaya species

open access: yesActa Scientiarum. Agronomy
Pitaya species can be self-compatible, partially self-compatible, or self-incompatible. Information related to floral biology and pollination is important for identifying the causes of self-incompatibility and the factors that limit self-pollination ...
Nubia Cassiana Santos   +5 more
doaj   +1 more source

Floral Traits and Foraging Behavior of the Bee Assemblage Visiting Martynia annua L. (Martyniaceae) in Coastal Jalisco, Mexico

open access: yesSociobiology, 2018
Floral visitors are often overlooked in those plants considered invasive and widespread weed species. Martynia annua L. is an example of an introduced species to the old world being native from tropical America, however, information of its endemic ...
Diana Cárdenas-Ramos   +4 more
doaj   +1 more source

Morphologic characterization and evaluation of the national collection of germoplasm of camu camu Myrciaria dubia (H.B.K) Mc Vaugh, of the INIA Loreto-Peru

open access: yesScientia Agropecuaria, 2011
The aim of this study was to characterize and evaluate morphologically the national collection of germplasm INIA camu camu made up of 43 accessions collected in the Loreto region, for conservation and use.
Sixto Imán Correa   +2 more
doaj   +1 more source

Evidence of andromonoecy in a northern population of Guaiacum coulteri (Zygophyllaceae).

open access: yesBotan‪ical Sciences
Background: Angiosperms exhibit diverse reproductive systems, and andromonoecy—where individuals produce both hermaphroditic and staminate flowers—is rare, occurring in about 1.7 % of species.
Selina Y. Hernández-Lizárraga   +3 more
doaj   +1 more source

Pollen biological characteristics and breeding system of Primulina guizhongensis

open access: yesXibei zhiwu xuebao
[Objective] This paper aims to investigate the characteristics of Primulina guizhongensis pollen and the influence of the breeding system on its sexual reproduction, to uncover its reproduction mechanism and providing theoretical references for the ...
HUANG Jiajun   +4 more
doaj   +1 more source

Late-acting self-incompatibility and a narrow floral tube as underlying stylar dimorphism in Narcissus (Amaryllidaceae)

open access: yesIdeas in Ecology and Evolution, 2018
Most heterostylous species show self- and intra-morph incompatibility and models established for such taxa have traditionally been applied to the evolution of stylar dimorphism and heterostyly in Narcissus, a genus with late-acting self-incompatibility ...
Violeta Irene Simón-Porcar
doaj  

The modular structure of the floral phenotype in Mimulus luteus var. luteus (Phrymaceae) Estructura modular del fenotipo floral en Mimulus luteus var. luteus (Phrymaceae)

open access: yesRevista Chilena de Historia Natural, 2005
Most studies of multivariate evolution on the floral phenotype assume that traits evolve independently one from each other, ignoring the modular structure that results from genetic correlations or developmental constraints.
GASTÓN CARVALLO, RODRIGO MEDEL
doaj  

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